CN215864973U

CN215864973U - Contact net dropper mounting position measuring instrument

Info

Publication number: CN215864973U
Application number: CN202122191949.2U
Authority: CN
Inventors: 郭磊; 李晋; 顾华峰; 刘海波; 曹敏山; 韩瑞晶; 胡云鹏; 孙家兴; 张建新
Original assignee: China Railway No 3 Engineering Group Co Ltd; Electrification Engineering Co Ltd of China Railway No 3 Engineering Group Co Ltd
Current assignee: China Railway No 3 Engineering Group Co Ltd; Electrification Engineering Co Ltd of China Railway No 3 Engineering Group Co Ltd
Priority date: 2021-09-10
Filing date: 2021-09-10
Publication date: 2022-02-18
Anticipated expiration: 2031-09-10

Abstract

The utility model belongs to the technical field of dropper installation distance measurement, and solves the problems of deviation, complicated measurement procedures and lower safety coefficient in high-altitude visual inspection during measurement. The utility model provides a contact net dropper mounted position measuring apparatu, including inside cavity, both ends open-ended casing about, the rear end of casing is provided with the horizontal inlet wire that is used for the contact wire to get into, rotate in the casing of inlet wire below and connect a measuring wheel, be connected with digital encoder on the measuring wheel, the inside sliding connection of casing of inlet wire top has the guide pulley frame, the upper end of guide pulley frame is provided with the tight device in top, the guide pulley frame lower extreme rotates and is connected with the take-up pulley, the measuring wheel, both ends around the equal perpendicular to casing of axis of take-up pulley, the front end of casing is provided with liquid crystal display window and horizontal slip scale, liquid crystal display window and digital encoder electric connection. The utility model has simple measuring process, high measuring precision and reduced safety risk.

Description

Contact net dropper mounting position measuring instrument

Technical Field

The utility model belongs to the technical field of dropper installation distance measurement, and particularly relates to a contact net dropper installation position measuring instrument.

Background

In the railway power supply construction process, before the catenary dropper is installed, the installation position needs to be measured, the measurement precision directly influences the installation precision and the stability in subsequent operation, and the problems existing in the measurement of the installation position of the catenary dropper are explained below.

The installation and measurement of the dropper of the contact network, according to the accurate dropper position given by a dropper pre-configuration table, a measurer visually measures the hanging position (starting point) of a strut on the ground (rail surface), a tape or a steel ruler is used for marking the dropper position in the span of two struts on a steel rail or a sleeper, and then a dropper installer carries out installation according to a ground mark, wherein the measurement method has the problems that:

1. the suspension point (starting point) of the strut is visually observed on the ground (rail surface) by a measurer, and the height of the suspension point (starting point) of the strut of the contact network relative to the ground (rail surface) is generally 7-7.5 m, so that the visual observation has deviation, the measurement result generates an error from the starting point, and the measurement precision is influenced.

2. In the past, a measurer uses paint to mark and measure positions on a steel rail and a sleeper or directly places stones on the surface of the steel rail or the rail waist during measurement, the marking mode has the defects that the marks are lost due to the passing of a train at the position of the steel rail, the stones are directly placed on the surface of the rail to easily cause driving accidents, and errors are easily generated in the subsequent installation and positioning of the marks at the position of the rail waist.

3. In the measurement, a tape or a steel ruler is used as a measuring tool, and the tape is required to cause errors due to the elasticity of the tape; the steel rule is because of it has the electric conductivity reason, easily causes steel rule overlap joint rail short circuit track signal circuit, and the red light area of output influences normal driving order, and when measuring in station switch district, often takes place steel rule (tape measure) and draws the in-process of dragging, crowds into the switch.

4. In the subsequent installation process, an installer needs to install the mark at the height of 7-7.5 meters with reference to the ground mark, the mark mode with reference to the ground is mostly a line drop hanging mode, the wind deflection and swing factors are met, and errors exist in the installation position collection.

Therefore, a high-precision installation position measuring instrument for a catenary dropper, which can be used for synchronously installing, measuring and clamping a catenary on a wire rope, needs to be researched.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a contact net dropper mounting position measuring instrument, aiming at the defects of deviation, complicated measuring process and low safety factor existing in high-altitude visual inspection during measurement in the existing dropper mounting.

In order to achieve the purpose, the utility model adopts the following technical scheme that the contact net dropper installation position measuring instrument comprises a shell which is hollow inside and is provided with openings at the left end and the right end, the rear end of the shell is provided with a transverse wire inlet for the entering of a contact wire, a measuring wheel is rotatably connected in the shell below the wire inlet, the measuring wheel is connected with a digital encoder, a guide wheel frame is slidably connected in the shell above the wire inlet and can slide up and down relative to the shell, the upper end of the guide wheel frame is provided with a puller device, the lower end of the guide wheel frame is rotatably connected with a tension wheel, the central axes of the measuring wheel and the tension wheel are vertical to the front end and the rear end of the shell, the puller device can tightly press the guide wheel frame, and the contact line is further pressed between the measuring wheel and the tension wheel, the front end of the shell is provided with a liquid crystal display window and a transverse sliding scale, and the liquid crystal display window is electrically connected with the digital encoder.

Preferably, the jacking device comprises a first bolt, the first bolt is vertically arranged and is in threaded connection with the shell, and the lower end of the first bolt abuts against the center of the upper end of the guide wheel frame.

Preferably, the jacking device comprises a plurality of jacking springs, a horizontal pressing plate is fixedly arranged in the shell, and the jacking springs are uniformly fixed between the pressing plate and the guide wheel frame.

Preferably, one end of the measuring wheel is provided with a first gear which is coaxially linked with the measuring wheel, the digital encoder is fixed in the shell, the digital encoder is provided with a second gear, and the first gear and the second gear are in meshing transmission.

Preferably, the guide wheel frame includes the notch plate, and the notch plate opening is downward, and the tight device in top supports tightly in the upper end of notch plate, and the lower extreme of notch plate is fixed with two same high axis of ordinates, and the take-up pulley is two, and rotates to connect on the axis of ordinates, and the position that corresponds the axis of ordinates on the casing is provided with vertical sliding slot hole, and the outer end of two axis of ordinates all is provided with the dog, and the dog butt is on the outer wall of casing.

Preferably, the upper portion of casing front end is provided with horizontal slotted hole and scale mark, and the slip scale setting is in the place ahead of horizontal slotted hole, and the slip scale accessible second bolt fastening is on the casing, and the second bolt passes the one end and the slotted hole of slip scale in proper order, is provided with first nut and leaves the regulation clearance between the head of second bolt and the slip scale, and the end-to-end connection of second bolt has the second nut.

Preferably, the lower portion of the housing has an arc-shaped handle.

Preferably, the wire inlet is arranged in the middle of the rear end of the shell, and the central points of the measuring wheel and the two tensioning wheels are connected in pairs in the same vertical plane to form an isosceles triangle.

Compared with the prior art, the utility model provides a contact net dropper installation position measuring instrument, which has the following beneficial effects:

1. the utility model is clamped on the contact line, can synchronously carry out installation and measurement work, avoids measurement errors and complicated marking procedures caused by high-altitude visual inspection, and improves the measurement precision and efficiency;

2. when the device is used for measurement, the measurement scale can be pushed out under the influence of a wire clamp on a contact line, the outer end of the measurement scale is abutted against a starting point (a suspension point at a strut of a contact net), and the distance of the final installation position is added with a specified numerical value on the measurement scale.

3. The utility model eliminates the link of leading points from the ground to the high altitude, avoids the safety problem caused by the use of a measuring tool and reduces the safety risk.

The parts of the device not involved are the same as or can be implemented using prior art.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a front view of embodiment 1;

FIG. 2 is a left side view of embodiment 1;

FIG. 3 is a left side view of embodiment 2;

fig. 4 is a schematic view of the installation positions of the tension wheel and the measuring wheel in the front view in the embodiment 1 and the embodiment 2.

In the figure: 1-a shell; 1.1-transverse wire inlet; 1.2-sliding slot hole; 1.3-slotted hole; 1.4-scale line; 2-a measuring wheel; 3-a digital encoder; 4-a guide wheel frame; 4.1-concave plate; 4.2-longitudinal axis; 4.3, a stop block; 5-a tension wheel; 6-liquid crystal display window; 7-a sliding scale; 8.1-first bolt; 8.2-second bolt; 8.3-first nut; 8.4-second nut; 9-tightening the spring; 10-pressing a plate; 11.1-a first gear; 11.2-second gear; 12-a handle.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Example 1:

a contact net dropper installation position measuring instrument comprises a shell 1 which is hollow inside and is provided with openings at the left end and the right end, the rear end of the shell 1 is provided with a transverse wire inlet 1.1 for a contact wire to enter, the shell 1 below the transverse wire inlet 1.1 is rotationally connected with a measuring wheel 2, the measuring wheel 2 is connected with a digital encoder 3, the shell 1 above the transverse wire inlet 1.1 is internally and slidably connected with a guide wheel frame 4, the guide wheel frame 4 can slide up and down relative to the shell 1, the upper end of the guide wheel frame 4 is provided with a jacking device, the lower end of the guide wheel frame 4 is rotationally connected with a tension wheel 5, the central axes of the measuring wheel 2 and the tension wheel 5 are vertical to the front end and the rear end of the shell 1, the jacking device can tightly press the guide wheel frame 4, and the contact line is further pressed between the measuring wheel 2 and the tension wheel 5, the front end of the shell 1 is provided with a liquid crystal display window 6 and a transverse sliding scale 7, and the liquid crystal display window 6 is electrically connected with the digital encoder 3.

As shown in fig. 1 and 2, the tightening device includes a first bolt 8.1, the first bolt 8.1 is vertically disposed and is in threaded connection with the housing 1, a lower end of the first bolt 8.1 abuts against a center of an upper end of the guide wheel frame 4, the contact line is clamped inside the housing 1 through the transverse line inlet 1.1, a lower end of the contact line is disposed in a wheel groove of the measuring wheel 2, the first bolt 8.1 is screwed to drive the guide wheel frame 4 to move downwards, and the two tensioning wheels 5 abut against the contact line, so that a certain pressure is provided between the measuring wheel 2 and the contact line, and the measuring wheel 2 cannot lose rotation in the operation process, and the measuring accuracy is ensured.

In this embodiment, the guide wheel frame 4 includes the notch plate 4.1, the opening of the notch plate 4.1 is downward, the top tight device supports tightly at the upper end of the notch plate 4.1, the lower extreme of the notch plate 4.1 is fixed with two axis of ordinates 4.2, the take-up pulley 5 rotates and connects on axis of ordinates 4.2, the position that corresponds axis of ordinates 4.2 on the casing 1 is provided with vertical chute hole 1.2, the outer end of two axis of ordinates 4.2 of notch plate 4.1 all is provided with dog 4.3, dog 4.3 butt is on the outer wall of casing 1, prevent rocking of axis of ordinates, the outer end of the both sides wall of notch plate 4.1 is close to the two inner walls of casing 1 respectively, leave the slip clearance, the inner of the both sides wall of notch plate 4.1 is close to the take-up pulley 5, leave the rotation clearance, prevent that the take-up pulley 5 from transversely rocking.

In this embodiment, a longitudinal axis is also fixed in the housing 1 below the transverse wire inlet 1.1, the measuring wheel 2 is rotatably connected to the corresponding longitudinal axis, one end of the measuring wheel 2 is provided with a first gear 11.1 coaxially linked with the measuring wheel, in this embodiment, one end of the measuring wheel 2 is fixedly provided with the first gear 11.1 (the connection mode may also be that a longitudinal axis is rotatably connected to the housing 1 below the transverse wire inlet 1.1, and the measuring wheel 2 and the first gear 11.1 are both fixed on the longitudinal axis) as long as the requirement that the first gear 11.1 is driven to rotate when the measuring wheel 2 rotates is met, the digital encoder 3 is provided with a second gear 11.2, the first gear 11.1 and the second gear 11.2 are in meshing transmission, so that the rotation distance of the measuring wheel 2 is converted into an electrical signal to be output, and finally displayed on the liquid crystal display window 6, which is a conventional technical means, and the detailed description of the specific principles is omitted here.

The casing 1 is made for the aluminum plate punching press, the upper portion of casing 1 front end is provided with horizontal slotted hole 1.3 and scale mark 1.4, slide scale 7 sets up the place ahead at horizontal slotted hole 1.3, slide scale 7 accessible second bolt 8.2 fastening is on casing 1, second bolt 8.2 passes slide scale 7 one end and slotted hole 1.3 in proper order, be provided with first nut 8.3 and leave the regulation clearance between the head of second bolt 8.2 and the slide scale 7, the end-to-end connection of second bolt 8.2 has second nut 8.4, the lower part of casing 1 has handle 12, set up semicircular hole in the lower part of casing 1 and form handle 12, be convenient for push-and-pull the measuring apparatu in the operation this.

When in measurement, if influenced by a wire clamp on a contact line, the measuring scale 7 can be pushed out, the outer end of the measuring scale is abutted to a starting point (a suspension point at a strut of a contact network), the distance of the final installation position is added with a specified numerical value on the measuring scale 7, the first nut 8.3 can be screwed or unscrewed, and the measuring scale 7 can be pushed up or loosened, so that the position of the measuring scale 7 can be adjusted.

As shown in fig. 4, in this embodiment, the connecting lines between the central points of the measuring wheel 2 and the two tensioning wheels 5 are in the same vertical plane, the transverse wire inlet 1.1 is disposed in the middle of the back of the housing 1, and the connecting lines between the central points of the measuring wheel 2 and the two tensioning wheels 5 form an isosceles triangle, so that the overall structure is more reasonable and compact, and the measuring accuracy is further improved.

Example 2:

the difference between example 2 and example 1 is that: as shown in figure 3 of the drawings,

the jacking device comprises a plurality of jacking springs 9, a horizontal pressing plate 10 is fixedly arranged in the shell 1, and the jacking springs 9 are uniformly fixed between the pressing plate 10 and the guide wheel frame 4.

The method comprises the following specific operation steps:

1. during measurement, a contact wire is clamped in the shell 1 through the transverse wire inlet 1.1, the lower end of the contact wire is arranged in a wheel groove of the measuring wheel 2, and the two tension wheels 5 are tightly pressed on the contact wire by the pressing spring 9, so that a certain pressure is formed between the measuring wheel 2 and the contact wire;

2. slowly pushing the measuring instrument to enable the measuring zero point to be aligned with a suspension point (starting point), pushing the liquid crystal display window data to zero and then to the direction of the mounting position of the dropper, starting to push the measuring instrument to run to the mounting position from the suspension point (starting point) at the strut of the contact network, and taking the mounting position when the distance parameter on the instrument display is consistent with the mounting position parameter in the dropper pre-configuration table;

3. when in measurement, the measurement scale 7 can be pushed out under the influence of a wire clamp on a contact line, the outer end of the measurement scale is abutted against a start point (a suspension point at a strut of a contact net), and the distance of the final installation position is the sum of the parameters of the liquid crystal display window and the distance between the start point measured by the measurement scale 7 and the starting point of the measuring instrument;

4. after the installation position is determined, the installation position is marked on the cable for installation, and the measurement and installation are finished by analogy.

The difference between the specific operating steps of example 1 and example 2 is only that: example 1 is to tighten two tension pulleys 5 against the contact line by rotating the first bolt 8.1.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides a contact net dropper mounted position measuring apparatu which characterized in that: the measuring device comprises a shell (1) which is hollow inside and is provided with openings at the left end and the right end, the rear end of the shell (1) is provided with a transverse wire inlet (1.1) for a contact wire to enter, the shell (1) below the wire inlet (1.1) is rotationally connected with a measuring wheel (2), the measuring wheel (2) is connected with a digital encoder (3), the shell (1) above the wire inlet (1.1) is internally and slidably connected with a guide wheel frame (4), the guide wheel frame (4) can slide up and down relative to the shell (1), the upper end of the guide wheel frame (4) is provided with a tightening device, the lower end of the guide wheel frame (4) is rotationally connected with a tension wheel (5), the central axes of the measuring wheel (2) and the tension wheel (5) are vertical to the front end and the rear end of the shell (1), the tightening device can tightly press the guide wheel frame (4) so as to tightly press the tension wheel (2) and the contact wire (5), the front end of the shell (1) is provided with a liquid crystal display window (6) and a transverse sliding scale (7), the liquid crystal display window (6) is electrically connected with the digital encoder (3).

2. The catenary dropper mounting position measuring instrument according to claim 1, wherein: the jacking device comprises a first bolt (8.1), the first bolt (8.1) is vertically arranged and is in threaded connection with the shell (1), and the lower end of the first bolt (8.1) abuts against the center of the upper end of the guide wheel frame (4).

3. The catenary dropper mounting position measuring instrument according to claim 1, wherein: the jacking device comprises a plurality of jacking springs (9), a horizontal pressing plate (10) is fixedly arranged in the shell (1), and the jacking springs (9) are uniformly fixed between the pressing plate (10) and the guide wheel frame (4).

4. The catenary dropper mounting position measuring instrument according to any one of claims 1 to 3, wherein: one end of the measuring wheel (2) is provided with a first gear (11.1) which is coaxially linked with the measuring wheel, the digital encoder (3) is fixed in the shell (1), the digital encoder (3) is provided with a second gear (11.2), and the first gear (11.1) and the second gear (11.2) are in meshing transmission.

5. The catenary dropper mounting position measuring instrument according to claim 4, wherein: guide wheel frame (4) are including notch plate (4.1), notch plate (4.1) opening is down, push up tight device and support tightly in the upper end of notch plate (4.1), the lower extreme of notch plate (4.1) is fixed with two axis of ordinates (4.2) of same height, take-up pulley (5) are two, and rotate and connect on axis of ordinates (4.2), the position that corresponds axis of ordinates (4.2) on casing (1) is provided with vertical slotted hole (1.2), the outer end of two axis of ordinates (4.2) all is provided with dog (4.3), dog (4.3) butt is on the outer wall of casing (1).

6. The catenary dropper mounting position measuring instrument according to claim 5, wherein: the upper portion of casing (1) front end is provided with horizontal slotted hole (1.3) and scale mark (1.4), and slip scale (7) set up the place ahead in horizontal slotted hole (1.3), and slip scale (7) accessible second bolt (8.2) fastening is on casing (1), and one end and slotted hole (1.3) of slip scale (7) are passed in proper order in second bolt (8.2), are provided with first nut (8.3) and leave the regulation clearance between the head of second bolt (8.2) and slip scale (7), and the end-to-end connection of second bolt (8.2) has second nut (8.4).

7. The catenary dropper mounting position measuring instrument of claim 6, wherein: the lower part of the shell (1) is provided with an arc-shaped handle (12).

8. The catenary dropper mounting position measuring instrument of claim 7, wherein: the wire inlet (1.1) is arranged in the middle of the rear end of the shell (1), and the central points of the measuring wheel (2) and the two tensioning wheels (5) are connected in pairs in the same vertical plane to form an isosceles triangle.