CN112629358A - Tool and method for measuring diameter from wheel to limiting groove of rail vehicle - Google Patents
Tool and method for measuring diameter from wheel to limiting groove of rail vehicle Download PDFInfo
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- CN112629358A CN112629358A CN202011392346.2A CN202011392346A CN112629358A CN 112629358 A CN112629358 A CN 112629358A CN 202011392346 A CN202011392346 A CN 202011392346A CN 112629358 A CN112629358 A CN 112629358A
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- diameter
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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
- G01B5/0025—Measuring of vehicle parts
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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
- G01B3/00—Measuring instruments characterised by the use of mechanical techniques
- G01B3/20—Slide gauges
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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
- G01B5/08—Measuring arrangements characterised by the use of mechanical techniques for measuring diameters
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/08—Railway vehicles
- G01M17/10—Suspensions, axles or wheels
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- General Physics & Mathematics (AREA)
- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The invention discloses a measuring tool for a rail vehicle wheel to limiting groove diameter, which is used for obtaining the limiting groove diameter in an indirect mode under the condition that the rolling circle diameter D of the wheel is measured, wherein the measuring tool comprises a positioning ruler component and a main ruler with scales, wherein the positioning ruler component and the main ruler are matched; the positioning rule component is used for positioning and marking a wheel rolling circle diameter measuring position A; the main ruler is used for measuring the radial distance between the radially outer end of the limiting groove and the rolling circle diameter measuring position A, namely the limiting groove position size S. The invention also provides a method for measuring the diameter of the limiting groove by using the measuring tool for the diameter of the railway wheel to the limiting groove. The invention utilizes the diameter size of the existing rolling circle of the wheel to indirectly obtain the diameter size of the limiting groove by measuring the relative distance size between the limiting groove and the position of the rolling circle, thereby realizing the miniaturization, the lightness and the accuracy of the diameter measuring tool of the limiting groove and further realizing the easy and accurate measurement of the diameter size of the limiting groove by a single person.
Description
Technical Field
The invention relates to the technical field of railway vehicles, in particular to a measuring tool for measuring the diameter from a railway wheel to a limiting groove and a method for measuring the diameter from the railway wheel to the limiting groove by using the measuring tool.
Background
In general, in the case of a rail wheel, the tread surface refers to the portion of the wheel that contacts the top surface of the rail. In order to visually display the degree of wear of the tread surface of the wheel, an "reaching-limiting groove" structure is generally machined in the rim end surface on the outer side of the wheel, as shown in fig. 1. Fig. 1(a) schematically illustrates a prior art method of using a rail wheel to limit groove diameter measuring tool 100, and fig. 1(b) illustrates a circle I in fig. 1(a) in a partially enlarged view. When the tread of the rail wheel is worn to the position, the tread needs to be replaced in time, otherwise, the risk of breakage of the wheel can be greatly increased. Therefore, accurate machining and measurement of the groove diameter d is extremely important to ensure safe operation of the wheel.
At present, after a groove limiting structure is machined, because the diameter d of the groove limiting structure is often close to 1000mm, a caliper gauge with the diameter of 1000mm is generally used for measuring the diameter of the groove limiting structure, and the specific measurement is shown in fig. 1. During measurement, a worker is required to align one clamping foot of the caliper to one side of the outer end of the radial direction of the limiting groove, another worker aligns the other clamping foot of the caliper to the other opposite side of the outer end of the radial direction of the limiting groove, and after the caliper is visually inspected to pass through the center of the wheel, the numerical value of the diameter d of the limiting groove is read.
However, this measurement method has various drawbacks: on one hand, because the caliper of 1000mm is too heavy, a single worker or a single person cannot independently complete measurement during inspection; on the other hand, the caliper foot is often misplaced during measurement, which causes measurement difficulty and inaccurate measurement result.
Accordingly, there is a need in the art for a new measuring tool for rail car wheel-to-threshold diameter and a method of measuring the same that eliminates or at least alleviates all or some of the above-mentioned deficiencies of the prior art.
Disclosure of Invention
In view of the above technical problems in the prior art, an object of the present invention is to provide a measuring tool for a rail vehicle wheel-to-limit groove diameter, which can obtain the rail vehicle wheel-to-limit groove diameter in an indirect manner under the condition that the wheel rolling circle diameter D is measured, so that a single worker or a single person can conveniently, quickly, intuitively and accurately measure the limit groove diameter. In addition, the invention also provides a method for measuring the diameter of the limiting groove by using the measuring tool for the diameter of the railway wheel to the limiting groove.
It is emphasized that, unless otherwise indicated, the terms used herein correspond to the ordinary meanings of the various technical and scientific terms in the art, and the meanings of the technical terms defined in the various technical dictionaries, textbooks, etc.
In this context, the terms "inboard" and "outboard" respectively mean that, viewed in the axial direction of the wheel axle, the side on which the rim is located is defined as the inboard side and the side without the rim is defined as the outboard side. The term "radially outer end" refers to an outer end in a radial direction relative to the axis of the axle, wherein the radial direction is perpendicular to the axial direction of the axle, and "radially outer end" is farther from the axis of the axle than "radially inner end".
To this end, in one aspect, according to an embodiment of the present invention, there is provided a measuring tool for a rail wheel to pot diameter, wherein the measuring tool is adapted to obtain the pot diameter in an indirect manner in case a wheel rolling circle diameter D has been measured, wherein,
the diameter measuring tool comprises a positioning ruler component and a main ruler with scales which are matched for use;
the positioning rule assembly is used for positioning and marking a rolling circle diameter measuring position A of the wheel;
the main ruler is used for measuring the radial distance between the radially outer end of the limiting groove and the rolling circle diameter measuring position A, namely the radial distance to the limiting groove position size S.
Further, in one embodiment, the spacer assembly may include a spacer, a spacer cursor slidably mounted to the spacer, a spacer foot fixedly connected to the spacer cursor perpendicular to the spacer, and a cursor lock nut for locking the spacer cursor to the spacer.
Further, the to-restriction groove diameter d of the to-restriction groove can be calculated according to the following formula (1):
the diameter D of the limiting groove is equal to the diameter of the rolling circle D, and the position size S multiplied by 2 formula (1) of the limiting groove
According to another aspect of the present invention, there is provided a method of measuring a groove diameter using a measuring tool for a rail car wheel to groove diameter as described above, wherein,
the method utilizes the measured diameter D of the rolling circle of the railway wheel to indirectly obtain the diameter D of the limiting groove by measuring the relative distance size between the limiting groove and the position of the rolling circle.
Further, the step of measuring the relative distance between the limiting groove and the position of the rolling circle may comprise: the positioning rule assembly is positioned to and marked at the rolling circle diameter measurement position a.
Further, the step of positioning and marking the positioning rule assembly at the rolling circle diameter measuring position A may comprise: firstly, the vernier of the positioning ruler is adjusted to a rolling circle diameter measuring position A in a sliding mode, and then the vernier of the positioning ruler is locked on the positioning ruler through the vernier locking nut so as to fix and mark the rolling circle diameter measuring position A.
Further, the step of measuring the relative distance between the limiting groove and the position of the rolling circle may further include: after the step A of positioning and marking the rolling circle diameter measuring position, the main scale is placed on the end face of the rim on the outer side of the wheel, the clamping feet of the positioning scale are attached to the tread of the wheel, and in this state, the position size S between the radial outer end of the limiting groove and the rolling circle diameter measuring position A is directly read from the main scale.
Further, after the step of measuring the relative distance dimension between the groove and the rolling circle position, the groove diameter d of the groove can be calculated according to the following formula (1):
the diameter D of the limiting groove is equal to the diameter of the rolling circle D, and the position size S multiplied by 2 formula (1) of the limiting groove
Further, the rolling circle diameter D can be read by using a wheel caliper before the step of measuring the relative distance dimension between the limiting groove and the rolling circle position.
The measuring tool for the diameter from the wheel of the rail vehicle to the limiting groove and the measuring method thereof provided by the embodiment of the invention have the following beneficial effects:
the invention utilizes the known diameter size of the rolling circle of the wheel to obtain the diameter size of the limited groove in an indirect mode by measuring the relative distance size between the limited groove and the rolling circle, thereby realizing the miniaturization, lightness and accuracy of the diameter measuring tool of the limited groove and further enabling a single worker to conveniently, quickly, intuitively and accurately measure the diameter size of the limited groove.
The invention is not only suitable for measuring the diameter from the train wheel to the limiting groove, but also suitable for measuring the diameter from the train wheel to the limiting groove of other railway vehicles.
Drawings
The accompanying drawings, which are included to provide a further understanding of embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 schematically illustrates one prior art method of use of a measuring tool for rail car wheel to gage diameter;
FIG. 2 schematically illustrates a block diagram of a tool for measuring rail wheel-to-groove diameter, in accordance with an embodiment of the present invention;
fig. 3 schematically shows a measuring method for obtaining the rolling circle diameter of a wheel.
Description of the element reference numerals
10: a diameter measuring tool; 11: a main scale; 12: positioning a ruler; 13: positioning a vernier of the ruler; 14: a positioning ruler clamping foot; 15: a vernier lock nut; 20: reaching the limiting groove; 100: prior art diameter measuring tools;
a: rolling circle diameter measurement position; d: rolling circle diameter; s: reaching the position size of the limiting groove; d: to the diameter of the restriction groove.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
The technical solution provided by the embodiment of the present invention is described in detail below with reference to fig. 2 and 3.
In one aspect, according to an embodiment of the present invention, there is provided a measuring tool for a rail vehicle wheel to pot diameter, wherein the measuring tool is adapted to obtain the pot diameter in an indirect manner in case a wheel rolling circle diameter D has been measured, wherein,
the measuring tool 10 comprises a positioning ruler component and a main ruler 11 with scales which are matched;
the positioning rule assembly is used for positioning and marking a rolling circle diameter measuring position A of the wheel;
the main scale 11 is used for measuring the radial distance between the radial outer end of the limiting groove 20 and the rolling circle diameter measuring position A, namely the radial distance to the limiting groove position size S.
Further, in one embodiment, the vernier assembly may include a vernier 12, a vernier 13 slidably mounted to the vernier 12, a vernier caliper foot 14 fixedly connected to the vernier 13 perpendicular to the vernier 12, and a vernier lock nut 15 for locking the vernier 13 to the vernier 12.
Further, the reaching-restriction groove diameter d of the reaching-restriction groove 20 can be calculated according to the following formula (1):
the diameter D of the limiting groove is equal to the diameter of the rolling circle D, and the position size S multiplied by 2 formula (1) of the limiting groove
According to another aspect of the present invention, there is provided a method of measuring a groove diameter using a measuring tool for a rail car wheel to groove diameter as described above, wherein,
the method utilizes the measured rolling circle diameter D of the railway wheel to indirectly obtain the limiting groove diameter D by measuring the relative distance size between the limiting groove 20 and the rolling circle position.
Further, the step of measuring the relative distance between the slot 20 and the rolling circle position may include: the positioning rule assembly is positioned to and marked at the rolling circle diameter measurement position a.
Further, the step of positioning and marking the positioning rule assembly at the rolling circle diameter measuring position A may comprise: firstly, the vernier 13 is adjusted to the rolling circle diameter measuring position a by sliding, and then the vernier 13 is locked on the positioning ruler 12 by the vernier lock nut 15 to fix and mark the rolling circle diameter measuring position a. The rolling circle diameter measuring position A marked here can be used as a reference position when a subsequent main scale measures to the limiting groove position size S.
Further, the step of measuring the relative distance between the limiting groove 20 and the rolling circle diameter D may further include: after the step of positioning and marking the positioning rule assembly to the rolling circle diameter measuring position A, the main rule 11 is placed on the end face of the rim on the outer side of the wheel, the positioning rule clamping feet 14 are attached to the tread of the wheel, and in this state, the radial distance between the radial outer end of the limiting groove 20 and the rolling circle diameter measuring position A is directly read from the main rule 11, namely the limiting groove position size S.
Further, after the step of measuring the relative distance dimension between the gauge 20 and the rolling circle position, the gauge diameter d to the gauge 20 may be calculated according to the following equation (1):
the diameter D of the limiting groove is equal to the diameter of the rolling circle D, and the position size S multiplied by 2 formula (1) of the limiting groove
Further, the rolling circle diameter D may be read using the wheel caliper 30 prior to the step of measuring the relative distance dimension between the slot 20 and the rolling circle location.
Referring now to fig. 2 and 3, a measuring tool for rail car wheel to pot diameter is shown according to one embodiment of the present invention.
A measuring tool 10 for rail car wheel-to-curb diameter according to an embodiment of the present invention may include: the main scale 11, the positioning scale 12, the positioning scale vernier 13, the positioning scale clamping foot 14 and the vernier locking nut 15 are structurally shown in figure 2, so that the diameter of the limiting groove 20 can be conveniently, rapidly, visually and accurately measured by a single person after the rail vehicle wheels are processed into the limiting groove 20.
Since the rolling circle diameter is one of the most important dimensions of the railway wheel, which is often measured preferentially in wheel dimension detection, a dedicated wheel caliper 30 is commonly used in the industry to measure the rolling circle diameter, as shown in fig. 3, and the measurement accuracy and the result reliability are very high.
The measuring tool for the diameter from the wheel of the rail vehicle to the limiting groove needs to be matched with the wheel diameter ruler 30 for use in measurement. The measuring method may comprise the steps of:
(1) measuring the diameter of a rolling circle of the wheel: referring to fig. 3, in a state where the inner side of the wheel is facing upward, the rolling circle diameter D may be measured using the wheel caliper 30, and a measurement result of the rolling circle diameter D is obtained;
(2) measuring the position size of the limiting groove: referring to fig. 2, in the state that the outer side of the wheel is upward, the vernier 13 of the positioning ruler assembly of the diameter measuring tool 10 of the present invention can be adjusted to the rolling circle diameter measuring position a in a sliding manner, and the positioning ruler vernier 13 is locked at the position on the positioning ruler 12 by the vernier lock nut 15; then, the main ruler 11 can be placed on the end face of the rim on the outer side of the wheel, the positioning ruler clamping feet 14 are attached to the wheel tread, and under the state, the radial distance between the radial outer end of the limiting groove 20 and the diameter measuring position A of the rolling circle, namely the position size S of the limiting groove, can be directly read from the main ruler 11;
(3) calculating the diameter size of the limiting groove: the dimension to the restriction diameter d can be obtained using equation (1), where equation (1) is as follows:
the diameter D of the limiting groove is equal to the diameter of the rolling circle D, and the position size S multiplied by 2 formula (1) of the limiting groove
Compared with the measurement mode in the prior art, the invention has the advantages that the inertial thinking mode of directly measuring the diameter of the limited groove by using a large caliper is skipped, the diameter of the limited groove is indirectly obtained by measuring the relative distance between the limited groove and the rolling circle by using the diameter of the rolling circle of the wheel, so that the size, the lightness and the accuracy of the limited groove measuring tool can be realized, and the diameter of the limited groove can be easily and accurately measured by a single person.
In summary, the measuring tool for the diameter of the railway wheel to the limiting groove and the measuring method thereof according to the embodiment of the invention can be suitable for measuring the diameter of the railway wheel to the limiting groove and can also be suitable for measuring the diameters of other railway wheel to the limiting groove.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Finally, it should be noted that: the above examples are only for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. A measuring tool for a rail vehicle wheel-to-limit groove diameter, characterized by being used to obtain a limit groove diameter in an indirect manner in the case of a measured wheel rolling circle diameter D, wherein,
the measuring tool (10) comprises a positioning ruler component and a main ruler (11) with scales, which are matched with each other;
the positioning rule component is used for positioning and marking a wheel rolling circle diameter measuring position A;
the main ruler (11) is used for measuring the radial distance between the radial outer end of the limiting groove (20) and the rolling circle diameter measuring position A, namely the radial distance to the limiting groove position size S.
2. The measuring tool for rail vehicle wheel-to-curb groove diameters as claimed in claim 1, characterized in that the position rule assembly comprises a position rule (12), a position rule cursor (13) mounted to the position rule (12) in a sliding manner, a position rule catch foot (14) fixedly connected to the position rule cursor (13) in a manner perpendicular to the position rule (12), and a cursor locking nut (15) for locking the position rule cursor (13) to the position rule (12).
3. The measuring tool for a railway wheel-to-pot diameter according to claim 2, characterized in that the to-pot diameter d to the pot (20) is calculated according to the following formula (1):
and D, the diameter D of the limiting groove is equal to the diameter D of the rolling circle, and the position size S multiplied by 2 of the limiting groove is expressed by a formula (1).
4. A method of measuring a pot diameter using a measuring tool for a rail car wheel-to-pot diameter according to any one of claims 1 to 3,
the method utilizes the measured rolling circle diameter D of the railway wheel to indirectly obtain the limiting groove diameter D by measuring the relative distance size between the limiting groove (20) and the rolling circle position.
5. The method of claim 4, wherein said step of measuring the relative distance dimension between the slot (20) and the location of the rolling circle comprises:
the positioning rule assembly is positioned to and marked at the rolling circle diameter measurement position a.
6. The method of claim 5, wherein said positioning and indexing a strongback assembly to a rolling circle diameter measurement position a comprises:
firstly, the positioning ruler vernier (13) is adjusted to a rolling circle diameter measuring position A in a sliding mode, and then the positioning ruler vernier (13) is locked on the positioning ruler (12) through the vernier locking nut (15) to fix and mark the rolling circle diameter measuring position A.
7. The method of claim 6, wherein said step of measuring the relative distance dimension between the slot (20) and the location of the rolling circle further comprises:
after the step of positioning the positioning rule assembly to the rolling circle diameter measuring position A and marking the rolling circle diameter measuring position A, the main rule (11) is placed on the end face of the rim on the outer side of the wheel, the positioning rule clamping feet (14) are attached to the tread of the wheel, and in the state, the position size S of the limiting groove between the radial outer end of the limiting groove (20) and the rolling circle diameter measuring position A is directly read from the main rule (11).
8. The method of claim 7, wherein after said step of measuring the relative distance dimension between the groove (20) and the location of the rolling circle, the groove diameter d to the groove (20) is calculated according to the following equation (1):
and D, the diameter D of the limiting groove is equal to the diameter D of the rolling circle, and the position size S multiplied by 2 of the limiting groove is expressed by a formula (1).
9. Method according to claim 4, characterized in that the rolling circle diameter D is read with a wheel caliper (30) before said step of measuring the relative distance dimension between the groove (20) and the rolling circle position.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011392346.2A CN112629358B (en) | 2020-12-02 | 2020-12-02 | Tool and method for measuring diameter from wheel to limiting groove of rail vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011392346.2A CN112629358B (en) | 2020-12-02 | 2020-12-02 | Tool and method for measuring diameter from wheel to limiting groove of rail vehicle |
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| CN112629358A true CN112629358A (en) | 2021-04-09 |
| CN112629358B CN112629358B (en) | 2022-10-28 |
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