Special gauge for measuring height of coupler center of locomotive
Technical Field
The utility model relates to the field of detection tools, in particular to a detection tool special for a locomotive car coupler center height measuring scale.
Background
The coupler is an important part of rail transportation equipment such as trucks, passenger cars and the like, and is mutually connected and hung between the vehicles, so that the coupler needs to be detected regularly, and whether the coupler meets the safety standard is usually judged by measuring the height of the center of the coupler. The coupler height measuring ruler can deform and wear after being used for multiple times, so that the precision is error.
Therefore, the prior art discloses an utility model patent of a detecting tool (bulletin number: CN 207832078U) for the center height gauge of the coupler of the locomotive, which detects the accuracy of the coupler height gauge through a supporting seat, a ruler, a sliding gauge frame in the ruler and a measuring head fixed on the gauge frame. However, the checking fixture has single function, and can not detect the plane perpendicularity of the coupler height ruler at the same time, so that the problems of inconvenient detection, incomplete data and the like are caused.
Disclosure of utility model
Aiming at the defects of the prior art, the utility model aims at solving at least one of the technical problems existing in the prior art, and therefore, the utility model provides the special gauge for the center height measuring ruler of the locomotive coupler, which is convenient for users to use and improves the detection precision and the comprehensiveness of detection data.
The special gauge for the locomotive car coupler center height measuring ruler comprises a supporting seat and a ruler which is vertically and fixedly arranged on the supporting seat, wherein a sliding rail is arranged on the ruler, a vernier frame is sleeved on the sliding rail, a small ruler frame is fixedly arranged on the vernier frame, the small ruler frame is slidably provided with a small ruler which is matched with the vernier frame, the small ruler is vertical to the ruler longitudinally and can slide along the vertical direction, the small ruler is provided with a measuring end and a reading end, and a superposition line of the reading end and the vernier frame is a measured value.
Further, the vernier frame is provided with a protruding gauge head in the measurement direction.
Further, the vernier frame and the small ruler are fixed in position by screws during measurement.
Further, the measuring end is of a trapezoid structure.
Compared with the prior art, the technical scheme of the application has the following beneficial effects:
The special gauge for the locomotive car coupler center height measurement ruler is characterized in that a small ruler frame and a small ruler are arranged on a vernier scale frame, the small ruler is slid to be close to the detected car coupler height ruler, so that a plane error value can be calculated, the function of detecting the plane verticality of the car coupler height ruler is added, a user can conveniently collect more data, a detection result is more accurate, a measuring end of the small ruler is arranged into a trapezoid structure, the user can more conveniently align to a detection position, the detection contact area of the trapezoid structure is smaller during detection, and the value is more accurate.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of a partial enlarged structure at A in FIG. 1;
FIG. 3 is a schematic view of FIG. 1 in use;
In the figure, a supporting seat 1, a straight ruler 2, a sliding rail 201, a vernier frame 3, a small ruler 4, a measuring end 401, a reading end 402, a small ruler frame 5, a measuring head 6, a screw 7 and a coupler center height measuring ruler 8.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-3, the special gauge for measuring the center height of a coupler of a rolling stock in this embodiment includes a supporting seat 1 and a ruler 2 vertically and fixedly mounted on the supporting seat 1, a sliding rail 201 is provided on the ruler 2, a vernier frame 3 is sleeved on the sliding rail 201, a small ruler frame 5 is fixedly mounted on the vernier frame 3, a small ruler 4 matched with the small ruler frame 5 is slidably mounted, the small ruler 4 is vertical to the ruler 2 and can slide along the vertical direction, the small ruler 4 has a measuring end 401 and a reading end 402, and a overlapping line of the reading end 402 and the vernier frame 3 is a measured value.
Further, the vernier frame 3 is provided with a protruding lateral head 6 in the measuring direction.
Further, the vernier frame 3 and the small scale 4 are fixed in position by screws 7 at the time of measurement.
Further, the measuring end 401 has a trapezoid structure.
When detecting the relative verticality of the coupler center height measuring rule 8, placing the special gauge for the coupler center height measuring rule 8 and the locomotive vehicle coupler center height measuring rule on a 2-level flat plate, respectively attaching the measuring end 401 of the small rule 4 of the gauge to the front surface and the scribing surface of the body of the coupler height measuring rule 8, respectively reading the readings of the reading end 402 of the small rule 4 of the gauge after screwing the screw 7 at the positions of approximately 650mm and 950mm of the coupler height measuring rule 8, subtracting the numerical values of the two positions, namely, the verticality of the coupler height measuring rule 8 is qualified if the verticality is not more than 0.6mm, and otherwise, disqualification.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.