CN216770392U

CN216770392U - Railway switch reduced value dipperstick

Info

Publication number: CN216770392U
Application number: CN202220234843.8U
Authority: CN
Inventors: 薛建中; 谭洪均; 杨帅
Original assignee: China Railway Materials Technology Co Ltd
Current assignee: China Railway Materials Technology Co Ltd
Priority date: 2022-01-27
Filing date: 2022-01-27
Publication date: 2022-06-17
Anticipated expiration: 2032-01-27

Abstract

The utility model discloses a railway turnout reduction value measuring scale which comprises a main scale, a digital display vernier and a combined level bubble. The measuring rule is fixed on the rail top of the reference rail through the transversely designed main scale base part; the digital display vernier is arranged on the main ruler body in the longitudinal design, and is combined with a measuring surface at the bottom end of a measuring rod designed on the digital display vernier, and the measuring surface is in contact with the highest point of the top of the switch rail, so that the reduced value measurement is realized. And the horizontal correction of the measuring scale on the reference rail is realized through the combined horizontal bubble and the horizontal adjusting screw which are arranged on the base. The utility model can effectively improve the measuring accuracy, and has convenient manufacture, operation and reading.

Description

Railway switch reduced value dipperstick

Technical Field

The utility model relates to the technical field of railway tracks, in particular to a measuring tool for detecting the relative position in the vertical direction between the tops of a switch rail and a stock rail or between the tops of a center rail and a wing rail after turnout assembly.

Background

In a high-speed railway turnout, the relative distance of the top surface of the switch rail relative to the top surface of the stock rail in the vertical direction is called as a 'reduced value' (or the relative distance of the top surface of the long rail relative to the top surface of the wing rail in the vertical direction), the allowable deviation is +/-0.5 mm, and the reduced value meeting the design requirement can be ensured so as to ensure that the train can run stably without impact or shaking when passing a switch.

A commonly used method for measuring the switch lowering value is shown in fig. 1, a 2 m steel flat rule a is lapped on two stock rails b on the outer side of a switch (in a horizontal state), and a distance L between the top of a switch rail c and the steel flat rule a is detected through a depth gauge or a feeler gauge, wherein the L is the lowering value of the switch rail relative to the stock rails. There are three main disadvantages to this approach:

(1) when the feeler gauge is used for measurement, the maximum stacking error of the feeler gauge can reach 0.3mm, the precision requirement of reducing the allowable deviation +/-0.5 mm can not be met, and the data reliability is not easy to guarantee.

(2) After the switch machine is installed on the high-speed turnout, the switch rail on one side is attached to the stock rail, the switch rail on the other side is repelled away from the stock rail, the bottom of the repelled switch rail is just positioned on the roller, the roller can lift the switch rail by 1-3mm, the top surface of the switch rail is higher than the top surface of the stock rail at the position where the reduction value of the switch rail is less than 3mm, at the moment, the steel flat ruler is not horizontal any more, the method is not applicable any more, the steel flat ruler is required to be adjusted to be horizontal, and the detection and the conversion are inconvenient.

(3) The measuring apparatus is many, carries inconveniently, generally needs two people cooperation operations.

At present, a new measuring method is represented by a 'measuring ruler for measuring a railway turnout reduction value' of a utility model patent (patent number CN201120273323) granted by the national intellectual property office on 03, 21 and by taking a rail top of a stock rail (a wing rail) as a reference point, the stock rail (the wing rail) is adjusted to be in a horizontal state, and then the relative distance between the top surface of a switch rail (a core rail) and the top surface of the stock rail in the vertical direction is measured, namely the reduction value. This utility model patent also has three not enough:

(1) the structure is complex, and the processing difficulty is high;

(2) due to the structural limitation, only a mechanical vernier can be adopted, and a digital display vernier cannot be adopted, so that the reading is inconvenient;

(3) the level display device of which is not adjustable.

Disclosure of Invention

In order to overcome the defects in the background art, the utility model discloses a railway turnout reduced value measuring scale which is improved in accuracy, convenient to manufacture, convenient to operate and convenient to read.

The utility model relates to a railway turnout reduction value measuring scale which comprises a main scale, a digital display vernier and a combined level bubble.

Wherein, the main ruler is provided with a transverse base and a longitudinal ruler body. The base is provided with a combined horizontal bubble and a horizontal adjusting screw. The digital display vernier is slidably mounted on the ruler body, an integrated measuring rod is designed on the digital display vernier, and the lower end face of the measuring rod is a measuring surface and is in contact with the top of the switch rail.

During advanced measurement, the measuring scale base is fixed on the rail top of the stock rail, the measuring rod is positioned above the rail top of the switch rail, and the level bubble is displayed in a horizontal state by adjusting the level adjusting screw. And then moving the digital display vernier to enable the end part of the measuring rod to be in contact with the highest point of the top of the switch rail, wherein the reading is the required reduction value.

The utility model has the advantages that:

(1) the railway turnout reduced value measuring scale is relatively simple in structure and convenient to machine and manufacture;

(2) the railway turnout reduction value measuring scale adopts the digital display vernier, so that the reading is convenient;

(3) according to the railway turnout reduction value measuring scale, the level bubble can be adjusted, and self-correction is facilitated;

(4) the railway turnout reduced value measuring scale is small in size and convenient to carry, and can be operated by one person;

(5) according to the railway turnout reduced value measuring scale, the reduced value can be detected after the turnout is provided with the switch machine;

(6) compared with a detection method using a flat rule and a clearance gauge, the railway turnout reduced value measuring scale has higher measuring precision.

Drawings

FIG. 1 is a schematic diagram of a prior art method for measuring turnout junction derating values;

FIG. 2 is a schematic structural view of a railway switch reduction value measuring scale of the present invention;

FIG. 3 is a schematic view of the usage state of the railway switch derating measuring scale of the present invention;

FIG. 4 is a schematic view of the type 2 structure of the railway switch derating measuring scale of the present invention;

fig. 5 is a schematic view of the use of the 2 nd version of the railway switch derating measuring scale of the present invention.

In the figure:

1-main ruler 2-digital display vernier 3-combined horizontal bubble

4-horizontal adjusting screw 5-fastening screw 1 a-ruler body

1 b-base 1 c-boss 2 a-measuring rod

2 b-locking bolt

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The utility model relates to a railway turnout reduction value measuring scale, which comprises a main scale 1, a digital display vernier 2 and a combined horizontal bubble 3, and is shown in figure 2.

The main ruler 1 is provided with a ruler body 1a and a base 1 b; wherein the base 1b is transversely arranged, and the tail end of the base is connected with the longitudinally arranged ruler body 1a to form an integral L-shaped main ruler; meanwhile, the bottom edge of the base 1b is provided with a horizontal boss 1c, so that the cross section of the base 1b is L-shaped.

The boss 1c is provided with a combined horizontal bubble 3, the combined horizontal bubble 3 is fixed on the boss 1c through fastening screws 301 at both ends of the combined horizontal bubble 3, and the horizontal state of the base 1b of the main scale 1 is displayed by the combined horizontal bubble 3. When the installation state of the combined horizontal bubble 3 is abnormal, the fastening screw 5 can be loosened, after fillers are arranged between the two ends of the combined horizontal bubble 3 and the base 1b of the main scale 1, the screw is tightened, the horizontal state adjustment of the combined horizontal bubble 3 is realized, and the combined horizontal bubble 3 can correctly display the horizontal state of the base 1b of the main scale 1. The filler can be a 0.01 mm-0.1 mm flake, can be made of metal and nonmetal materials, and is hard in texture. The boss 1c is also provided with a screw hole penetrating through the upper surface and the lower surface of the boss 1c, and a horizontal adjusting screw 4 which is longitudinally arranged is arranged and used for adjusting the horizontal state of the measuring surface at the bottom of the main ruler base.

A groove is formed in the bottom surface of the middle of the base 1b of the main scale 1, and a magnet is fixedly mounted in the groove and used for adsorbing a measured object during detection. Meanwhile, a groove with the depth of 0.5-5mm and the length of 5-20mm is designed on the bottom surface of the end part of the base 1b of the main scale 1, so that an avoiding step is formed at the tail end of the main scale 1 and is positioned under the scale body 1a, and the tail end of the main scale 1 is prevented from being in contact with a measured object to generate interference during measurement.

Digital display vernier 2 slidable mounting has integrative measuring stick 2a on blade 1a, and the design has on the digital display vernier 2, and this measuring stick 2a is the straight-bar, vertically sets up along blade 1a, lies in the dorsal part of blade 1a, and can have less clearance between blade 1a, or just laminate, do not influence digital display vernier 2 slip can, the terminal surface is the measuring surface under measuring stick 2 a. The digital display vernier 2 moves longitudinally downwards and is limited by the base 1b, and the longitudinal upwards movement is limited by a stop screw fixedly installed at the end part of the ruler body 1 a; when the display cursor 2 is moved longitudinally downward to the extreme position, the measuring surface of the measuring rod 2a is 10mm lower than the bottom surface of the base 1 b. The side part of the digital display vernier 2 is provided with a locking bolt 2b, and the locking bolt 2b is screwed tightly to be matched and propped against the side part of the ruler body 1a, so that the longitudinal position of the digital display vernier 2 is fixed.

As shown in fig. 3, when the railway switch down value measurement is performed, the steps are as follows:

1. a plane is selected, the measuring scale is placed on the plane, the bottom surface of the base 1b and the measuring surface of the measuring rod 2a are placed on the plane in a coplanar mode, and at the moment, display data of the digital display vernier 2 are reset to zero.

2. The vernier 2 slides on the ruler body 1a, so that the lower end surface of the measuring rod 2a is higher than the bottom surface of the base 1 b.

3. The measuring scale is adsorbed to the rail top of the stock rail through a magnet on the base, the position of the measuring scale is finely adjusted, the measuring rod 2a is located above the rail top of the switch rail (including the highest point of the rail top of the switch rail), and the rail top of the switch rail can be avoided when the rail top of the switch rail is higher than the rail top of the stock rail through the designed avoiding step; meanwhile, the adjusting screw faces the cambered surface position on one side of the rail top of the stock rail.

4. The horizontal bubble 3 is displayed in a horizontal state by adjusting the horizontal adjustment screw 4.

5. And moving the digital display vernier 2 to enable the end part of the measuring rod 2a to be in contact with the highest point of the rail top of the switch rail, wherein the reading is the required reduction value.

Aiming at the measuring method, on the basis of the measuring scale structure, the utility model also provides another measuring scale structure for the railway turnout reduction value, and the main difference lies in that different structural designs of a measuring rod 2a on a base 1b and a digital display vernier 2 are as follows:

as shown in fig. 4, the main ruler 1 is designed into a T-shaped structure, and the middle part of the transverse base 1b is connected with the longitudinal ruler body 1a to form an integral main ruler; a combined horizontal bubble 3 is also provided on the top surface of the base 1 b. The horizontal adjusting screw 4 on the base 1b is designed near the end of the base 1 b.

The measuring rod 2a of the digital display vernier 2 on the ruler body 1a is designed into an L-shaped structure consisting of a cross rod and a longitudinal rod; the end part of the transverse rod is connected with the side arm of the digital display vernier 2, the end part of the longitudinal rod is arranged downwards and is positioned outside the tail end of the base 1b, and the end surface of the longitudinal rod is used as a measuring surface.

According to the measuring scale with the structure, the base 1b is not provided with the avoidance step structure, but the length of the base 1b is shortened, so that the tail end of the base 1b does not exceed the side surface of the rail head of the stock rail after the base 1b is installed on the rail top of the stock rail. Meanwhile, the measuring surface of the measuring rod 2a of the digital display vernier 2 is positioned above the top of the switch rail. As shown in fig. 5, the measuring scale also performs the railway switch down value measurement by the above-mentioned measuring method.

Claims

1. The utility model provides a railway switch reduced value dipperstick, includes main scale, digital display vernier and combination level bubble, its characterized in that:

the main ruler is provided with a transverse base and a longitudinal ruler body; the base is provided with a combined horizontal bulb and a horizontal adjusting screw; the digital display vernier is slidably mounted on the ruler body, an integrated measuring rod is designed on the digital display vernier, and the lower end face of the measuring rod is a measuring surface and is in contact with the top of the switch rail.

2. The railway switch derating measuring scale as set forth in claim 1, wherein: the combined horizontal bulb is fixed on the base through fastening screws at two ends of the combined horizontal bulb.

3. The railway switch derating measuring scale as set forth in claim 1, wherein: the bottom surface design recess in the middle part of the base, fixed mounting has magnet in the recess, adsorbs the measured object when supplying to detect.

4. The railway switch derating measuring scale as set forth in claim 1, wherein: the bottom surface of the end part of the base is provided with a groove, and an avoiding step is further formed at the tail end of the main ruler and is positioned under the ruler body.

5. The railway switch derating measuring scale as set forth in claim 1, wherein: the longitudinal upward movement of the digital display vernier is limited by a stop screw fixedly arranged at the end part of the ruler body.

6. The railway switch derating measuring scale as set forth in claim 1, wherein: the side part of the digital display vernier is provided with a locking bolt, and the locking bolt is matched with the side part of the ruler body to be tightly propped by screwing the locking bolt, so that the longitudinal position of the digital display vernier is fixed.

7. The railway switch derating measuring scale as set forth in claim 1, wherein: the main scale is of an L-shaped structure; meanwhile, the measuring rod of the digital display vernier is designed to be a straight rod along the longitudinal direction.

8. The railway switch derating measuring scale as set forth in claim 1, wherein: the main ruler is of a T-shaped structure; meanwhile, the measuring rod of the digital display vernier is designed into an L-shaped structure, the transverse part is connected with the digital display vernier, the end part of the longitudinal part is positioned on the outer side of the tail end of the base, and the end face of the longitudinal rod is used as a measuring surface.