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CN-122015656-A - Plug door measuring device and measuring method

CN122015656ACN 122015656 ACN122015656 ACN 122015656ACN-122015656-A

Abstract

The invention discloses a sliding plug door measuring device and a measuring method, which relate to the technical field of measurement and aim to solve the technical problems that in the prior art, the operation of measuring a sliding plug from the outside is difficult, even sometimes the operation cannot be measured, and the maintenance effect and the maintenance efficiency of a train are affected. The invention adopts the main rod and the like, so that a worker can directly carry out the width of the gap in the carriage, on one hand, the detection difficulty is reduced, the worker can carry out the detection under any environment (maintenance, repair or unexpected faults and the like), and on the other hand, the measuring part is directly contacted with the vehicle door and the vehicle body at the two sides of the gap to obtain data which is directly displayed on the display part, and the detection result is more accurate.

Inventors

  • Wei mengxi
  • JIANG PENGFEI
  • WANG NENG
  • LU PING
  • WU JIE

Assignees

  • 成都工业职业技术学院

Dates

Publication Date
20260512
Application Date
20260210

Claims (10)

  1. 1. The measuring device for the sliding plug door is characterized by comprising a main rod (2) which can be inserted into a gap between a vehicle door and a vehicle body, wherein the main rod (2) is provided with a measuring device, the measuring device comprises a measuring part and a driving part for driving the measuring part to expand and contract, the expanded width of the measuring part is matched with the width of the gap, and the main rod (2) is provided with a display part matched with the measuring part.
  2. 2. The sliding plug door measuring device according to claim 1, wherein the driving part comprises a scale rod (3) which is in sliding connection with the main rod (2), the measuring part comprises a plurality of groups of hinge four rods (4), each group of hinge four rods (4) comprises two groups of symmetrically arranged folding parts, two ends of each group of folding parts are respectively and rotatably connected with the scale rod (3) and the main rod (2), and an elastic device is arranged at the rotating connection part of each folding part and the scale rod (3) and the main rod (2).
  3. 3. The sliding plug door measuring device according to claim 2, wherein the main rod (2) is provided with a support (202) matched with the folding portion, the support (202) is provided with a first through hole matched with the folding portion, the first through hole adopts a cross structure, the first through hole penetrates through four sides of the support (202), the first through hole is arranged along the height of the support (202), the scale rod (3) is in sliding connection with the first through hole through a sliding block (302), the sliding block (302) also adopts the cross structure, and a fixing rod (203) matched with the folding portion is further arranged in the first through hole.
  4. 4. A sliding plug door measuring apparatus according to claim 3, wherein the folding portion comprises a first lever (402) provided away from the display portion and a second lever (401) provided close to the display portion, one end of the first lever (402) and one end of the second lever (401) are rotatably connected with the slider (302) and the fixed lever (203), respectively, the second lever (401) is rotatably connected with the first lever (402), and a rotational connection portion of the second lever (401) with the first lever (402) is provided between a center and an edge of the first lever (402), and a length of the second lever (401) is 1/3-1/2 of a length of the first lever (402).
  5. 5. A sliding plug door measuring device according to claim 4, wherein the measuring device further comprises a laser generator (6) arranged on one first rod (402) of each group of four hinge rods (4), the laser generator (6) is arranged at the end part of the first rod (402) close to the display part, a laser receiver (7) matched with the laser generator (6) is arranged on the other first rod (402), a plurality of second through holes (303) matched with the laser generator (6) and the laser receiver (7) are arranged on the scale rod (3), and the plurality of second through holes (303) are arranged along the height of the scale rod (3).
  6. 6. A sliding plug door measuring device according to any one of claims 1-5, wherein the display part comprises a scale bar (1) arranged on the main bar (2), the scale bar (1) is arranged on one side of the main bar (2) far away from the measuring device, and the correspondence between the scale bar (1) and the scale bar (3) and the first bar (402) is set based on Pythagorean theorem.
  7. 7. A sliding plug door measuring device according to any one of claims 1-5, wherein the display part comprises a display screen arranged on the main rod (2), the display screen is arranged on one side of the main rod (2) far away from the measuring device, and a controller is arranged in the display screen and is in wireless connection with the laser receiver (7).
  8. 8. A sliding plug door measuring device according to any one of claims 1-5, wherein a rack (301) is arranged on the scale bar (3), a gear (204) matched with the rack (301) is arranged in the main bar (2), and a bayonet lock (201) matched with the gear (204) is arranged on the main bar (2).
  9. 9. A sliding plug door measuring device according to any one of claims 1-5, characterized in that an auxiliary positioning device (8) is arranged on the main rod (2), the auxiliary positioning device (8) is arranged on one side of the main rod (2) far away from the display part and is connected with the measuring part, the auxiliary positioning device (8) comprises an auxiliary rod (801) rotationally connected with the main rod (2), the auxiliary rod (801) adopts a telescopic structure, the auxiliary rod (801) is connected with the folding part through a connecting rod (802), two ends of the connecting rod (802) are respectively connected with the auxiliary rod (801) in a sliding mode through connecting blocks, and the connecting rod (802) is rotationally connected with the folding part.
  10. 10. A measuring method of a sliding plug door measuring device is characterized in that the sliding plug door measuring device is adopted to carry out according to any one of claims 1 to 9, and comprises the following steps: s1, extending a main rod (2) into a gap between a vehicle door and a vehicle body in a carriage; S2, expanding the measuring part through the driving part, and enabling two ends of the measuring part to be respectively contacted with the vehicle door and the vehicle body; S3, outputting the measurement result through a display part.

Description

Plug door measuring device and measuring method Technical Field The invention belongs to the technical field of measurement, and particularly relates to a sliding plug door measurement device and a measurement method. Background The sliding plug door is an automatic door system of a rail transit vehicle combining the plug-in and the pull-out actions, and is characterized in that the door body presents the sliding plug action in the opening and closing process, is flush with the outer skin of the vehicle body after being closed, and is overlapped with the vehicle body when being opened, so that the sliding plug door has the advantages of reducing air resistance, reducing noise, saving energy consumption of an air conditioner and the like. Because the sliding plug door is complex in structure and high in installation, overhauling and wiping operation difficulty, the failure rate of the sliding plug door is high in proportion to the failure rate of the motor train unit, so that related parameters of the sliding plug door are required to be detected frequently, whether the sliding plug door fails or not is judged, and particularly the distance between the outer surface of a vehicle door and the outer surface of a frame after the sliding plug door is completely opened is called as the plug-out or the parallelism of the vehicle door, and the sliding plug door is a key technical parameter for measuring the installation accuracy, the sealing performance and the operation safety of a door body, and whether the numerical value of the sliding plug door is in a design standard range or not directly influences the pneumatic performance, the sound insulation and waterproof effect and the operation stability of a vehicle. If the plug value is too large, extra aerodynamic resistance is generated when the vehicle runs at high speed, energy consumption is increased, the door body is easy to vibrate, if the plug value is too small, the door body and the vehicle body are not tightly sealed, the problems of air leakage, water leakage, sound leakage and the like occur, and the locking reliability of the door body is also influenced when the plug value is too small, so that potential safety hazards are buried. Therefore, in the processes of production assembly, daily maintenance and troubleshooting of the sliding plug door, accurate measurement of the plug value is an indispensable key link. At present, the measuring method and the measuring tool for the plug value of the sliding plug door in the industry are more traditional, and the problems of complex operation, limited measuring conditions, insufficient precision, low efficiency and the like generally exist. The existing measuring mode mainly depends on universal measuring tools such as a steel tape, a straight ruler, a common feeler gauge and the like, and the measuring operation is required to be completed outside a carriage. Specifically, an maintainer needs to stand outside a vehicle to measure the plug values of the upper and lower parts of the door body one by aid of auxiliary equipment such as a herringbone ladder and an overhaul platform, and various limitations exist in the operation process. For example, in a maintenance station, a vehicle is suspended on the ground through a rail and a support, and a platform needs to be built during maintenance, so that the time for data measurement is prolonged, and the train is in a special environment sometimes, and the maintenance efficiency and the maintenance effect of the train can not be influenced due to the fact that the platform cannot be built for external measurement. Disclosure of Invention The invention discloses a sliding plug door measuring device and a sliding plug door measuring method, which aim to solve the technical problems that in the prior art, the operation of measuring a sliding plug from outside is difficult, even sometimes impossible to measure, and the maintenance effect and the maintenance efficiency of a train are affected. In order to solve the technical problems, the invention adopts the following technical scheme: The utility model provides a sliding plug door measuring device, includes the mobile jib that can insert door and automobile body gap, be provided with measuring device on the mobile jib, measuring device includes measuring part and is used for driving measuring part expansion and shrink drive division, the width after measuring part expansion matches with the width in gap, be provided with on the mobile jib with measuring part complex display portion. After the technical scheme is adopted, the main rod which can be inserted into the gap between the vehicle door and the vehicle body is arranged, then the measuring part arranged on the main rod is respectively contacted with the vehicle door and the vehicle body by starting the driving part, the linear distance between the measuring part and the contact point between the vehicle door and the vehicle body is the width of the gap, and fina