A horizontal degree measuring device and method for a GK type diesel locomotive heavy-duty traction pin

Abstract

The application discloses a GK type diesel locomotive heavy traction pin levelness measuring device and measuring method, the device comprises a measuring platform, a triangular vertical structural member and a dial indicator; the bottom of the measuring platform is provided with a lifting device, the top surface of the measuring platform is provided with a U-shaped fixed support frame and a V-shaped fixed bracket with U-shaped grooves and V-shaped grooves respectively at intervals; the bottom surface of the triangular vertical structural member is arranged on the top surface of the measuring platform, and the vertical surface of the triangular vertical structural member is closely attached to the outer side surface of the U-shaped fixed support frame; the upper portion of the U-shaped fixed support frame is provided with a U-shaped groove, a U-shaped up-down adjusting bracket matched with the U-shaped groove is arranged in the U-shaped groove, and the top two sides of the U-shaped up-down adjusting bracket are movably connected with the two end portions of the U-shaped up-down adjusting bracket respectively; the inner arc surface of the U-shaped up-down adjusting bracket is matched with the outer circle of the rear end disc of the traction pin. The application can accurately verify the appearance size of the traction pin disassembled from the scrapped locomotive, so that the traction pin replaced after deformation and out of limits can reach the use parameters when the locomotive is newly manufactured, and other parts can be installed in a matched mode.

Description

Technical Field

[0001] The invention belongs to the field of machinery and relates to a device and a method for measuring the horizontality of a heavy-duty traction pin of a GK type diesel locomotive. Background Art

[0002] The GK type diesel locomotive is a new type of locomotive suitable for shunting and small-scale operation in railway, metallurgy, petrochemical, port and local railway industries. The traction pin of the GK type diesel locomotive is an important component that transmits locomotive power and ensures that the bogie moves within the limit. It is located at the bottom of the car body (such as Figure 1 and Figure 2 As shown in the figure, after long-term use, diesel locomotives often experience excessive deformation of their traction pins. Considering the cost and spare parts procurement cycle, companies often consider disassembling the traction pins of similar scrapped locomotives and replacing them with welded replacements. The welding replacement process is as follows: traction pin inspection - ultrasonic testing of R-angle forgings - dimensional verification - online assembly - online measurement - online welding - weld surface and weld leg dimensional inspection - delivery for use. During the replacement process, the traction pins need to be assembled online and restored to their original dimensions when the locomotive was newly built. In actual operation, the traction pin horizontality and dimensional verification measurement can meet the process technical requirements. However, the following main problems exist when measuring the traction pin horizontality: 1. Due to the weight of the traction pin itself, it cannot be easily moved for measurement; 2. To ensure dimensional accuracy, the irregular and heavy traction pin needs to be placed in a horizontal position and repeatedly rotated for measurement, which is difficult; 3. The traction pin horizontality measurement requires a dial indicator to measure different symmetrical parts for a long time. Only when it meets the technical requirements can it be confirmed for use. Therefore, it is difficult to measure the horizontal accuracy of such heavy-duty traction pins manually. Summary of the Invention

[0003] In response to the problems existing in the background technology, the present invention provides a GK type diesel locomotive heavy-duty traction pin horizontality measuring device and method, which can accurately verify the external dimensions of the traction pins removed from scrapped locomotives to ensure that after replacing the traction pins that have exceeded the deformation limit, the operating parameters of the locomotive can be achieved and other components can be installed in conjunction.

[0004] The technical solution of the present invention to solve the technical problem is as follows:

[0005] The present invention discloses a device for measuring the horizontality of a heavy-duty traction pin of a GK-type diesel locomotive. The traction pin comprises a traction pin front end and a traction pin rear end circular disc, and the device comprises a measuring platform, a triangular vertical structure and a dial indicator; a lifting device is provided at the bottom of the measuring platform, and a U-shaped fixed support frame and a V-shaped fixed bracket respectively having a U-shaped groove and a V-shaped groove are provided on the top surface thereof at intervals according to the length of the traction pin; the bottom surface of the triangular vertical structure is provided on the top surface of the measuring platform, and the vertical surface thereof is in close contact with the outer side surface of the U-shaped fixed support frame; a U-shaped upper and lower adjustment bracket matched with the U-shaped fixed support frame is installed in the U-shaped groove of the U-shaped fixed support frame and is movably connected to the two ends of the U-shaped upper and lower adjustment bracket on both sides of the top thereof; the inner arc surface of the U-shaped upper and lower adjustment bracket is matched with the outer circle of the traction pin rear end circular disc.

[0006] Furthermore, threaded holes are provided at both ends of the U-shaped upper and lower adjustment bracket and upper and lower adjustment screws are installed. Blind holes with the same depth and corresponding to the threaded holes at both ends of the U-shaped upper and lower adjustment bracket are provided on both sides of the top of the U-shaped fixed support frame. The upper and lower adjustment screws at both ends of the U-shaped upper and lower adjustment bracket are respectively placed in the two blind holes of the U-shaped fixed support frame.

[0007] Furthermore, the lifting device is a jack arranged at the four corners of the bottom of the measuring platform.

[0008] Furthermore, the dial indicator is arranged on the measuring platform via a dial indicator bracket.

[0009] Furthermore, the measuring platform, triangular vertical structure, V-shaped fixing bracket and U-shaped fixing support frame are all made of 50mm thick steel plates, the U-shaped upper and lower adjustment brackets are made of 20mm thick steel plates, and the upper and lower adjustment screws are made of round steel with a diameter of 10mm.

[0010] The measurement method of the GK-type diesel locomotive heavy-duty traction pin levelness measuring device comprises the following steps: first, place the measuring platform on the lifting device and adjust the measuring platform to a suitable height and a horizontal state through the lifting device; second, install the triangular vertical structural member on the upper surface of the measuring platform, then install the U-shaped fixed support frame and make the U-shaped fixed support frame closely adhere to the vertical surface of the triangular vertical structural member, then install the U-shaped up-down adjusting bracket on the top of the U-shaped fixed support frame through the up-down adjusting screw, and then install the V-shaped fixed bracket on the measuring platform according to the length of the index pin, so that the U-shaped groove of the U-shaped up-down adjusting bracket corresponds to the V-shaped groove of the V-shaped fixed bracket; third, place the traction pin horizontally on the U-shaped up-down adjusting bracket and the V-shaped fixed bracket, make the traction pin rear end disc closely adhere to the vertical surface of the triangular vertical structural member, place the traction pin rear end disc outside the lower part on the U-shaped groove of the U-shaped up-down adjusting bracket, and place the front end of the traction pin on the V-shaped groove of the V-shaped fixed bracket, and then place the dial indicator on the two sides of the traction pin at a horizontal position; fourth, adjust the distance between the U-shaped up-down adjusting bracket and the U-shaped fixed support frame through the up-down adjusting screw to ensure that the traction pin is in a horizontal state, and then use the dial indicator to measure the symmetry and rotation of the traction pin at any position.

[0011] Compared with the prior art, the GK-type diesel locomotive heavy-duty traction pin levelness measuring device and the measurement method have the advantages that the device has a simple and reasonable structure, is convenient to manufacture, use and maintain, has low investment cost, can accurately verify the size of the traction pin removed from the scrapped locomotive, can make the traction pin meet the size and use parameters of the locomotive when the locomotive is newly manufactured, and can meet the requirements of installing other components of the locomotive. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 FIG. 1 is a structural schematic diagram of a GK-type diesel locomotive in the present application;

[0013] Figure 2 FIG. 3 is a structural schematic diagram of a traction pin in the present application;

[0014] Figure 3 FIG. 5 is a structural schematic diagram of the GK-type diesel locomotive heavy-duty traction pin levelness measuring device in use in the present application;

[0015] Figure 4 FIG. 7 is an exploded structural schematic diagram of the GK-type diesel locomotive heavy-duty traction pin levelness measuring device in use in the present application;

[0016] In the figure: 1. Lifting device; 2. Measuring platform; 3. Triangular vertical structure; 4. V-shaped fixing bracket; 5. U-shaped fixing support frame; 6. U-shaped upper and lower adjustment bracket; 7. Upper and lower adjustment screw; 8. Dial indicator; 9. traction pin; 91. Front end of traction pin; 92. Disc at the rear end of traction pin; 10. Dial indicator bracket; 11. GK diesel locomotive. DETAILED DESCRIPTION

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] Unless otherwise defined, the technical or scientific terms used herein shall have the usual meanings understood by persons of ordinary skill in the field to which the present disclosure belongs. The terms "upper", "lower", "left", "right", "front", "back", "inside", "outside", "horizontal", "vertical", etc. used in the present patent application specification and claims are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship also changes accordingly. Similar terms such as "connected" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. Anything not described in detail in the present invention is a common knowledge to those skilled in the art.

[0019] Example 1:

[0020] like Figures 1-2 As shown in FIG, the present invention is a GK type diesel locomotive heavy-duty tractor pin levelness measuring device, wherein the tractor pin 9 is installed at the bottom of the GK type diesel locomotive 11, and comprises a tractor pin front end 91 and a tractor pin rear end disc 92; Figures 2-4As shown, the GK type diesel locomotive heavy-duty traction pin levelness measuring device comprises a measuring platform 2, a triangular vertical structural member 3 and a dial indicator 8; the measuring platform 2 is generally in the shape of a rectangular plate, the bottom of which is provided with lifting devices 1 for adjusting the height and horizontal state of the measuring platform 2, and the top surface of which is provided with a U-shaped fixed support frame 5 and a V-shaped fixed bracket 4 with U-shaped grooves and V-shaped grooves respectively at intervals according to the length of the traction pin 9; the triangular vertical structural member 3 is arranged on the top surface of the measuring platform 2, and the vertical surface thereof is in close contact with the outer side surface of the U-shaped fixed support frame 5; the upper portion of the U-shaped fixed support frame 5 is provided with a U-shaped groove, and a U-shaped up-down adjusting bracket 6 matched with the U-shaped groove is arranged in the U-shaped groove, and the two ends of the U-shaped up-down adjusting bracket 6 are movably connected to the two sides of the top of the U-shaped fixed support frame 5, so that the U-shaped up-down adjusting bracket 6 can be adjusted in height with respect to the U-shaped fixed support frame 5; the inner arc surface of the U-shaped up-down adjusting bracket 6 is matched with the outer circle of the traction pin rear end disc 92, and the U-shaped groove of the U-shaped up-down adjusting bracket 6 corresponds to the V-shaped groove of the V-shaped fixed bracket 4, so as to conveniently support the traction pin 9 together. In use, the traction pin front end 91 and the traction pin rear end disc 92 of the traction pin 9 are respectively placed on the U-shaped groove of the U-shaped up-down adjusting bracket 6 in the V-shaped groove of the V-shaped fixed bracket 4, the height of the U-shaped up-down adjusting bracket 6 is adjusted by adjusting the distance between the U-shaped up-down adjusting bracket 6 and the U-shaped fixed support frame 5, and then the outer side surface of the traction pin rear end disc 92 is in close contact with the vertical surface of the triangular vertical structural member 3, so that the traction pin 9 is in a horizontal state, and then the dial indicator 8 is arranged on both sides of the traction pin 9 to measure the levelness of the traction pin 9.

[0021] In the embodiment, the lifting devices 1 can be jacks arranged at the four corners of the bottom of the measuring platform 2, which are simple and practical, and can effectively ensure that the measuring platform 2 is in a horizontal state, meeting the needs of the levelness measurement of the traction pin 9.

[0022] In the embodiment, in order to adjust the up-down height of the U-shaped up-down adjusting bracket 6, threaded holes are arranged at the two ends of the U-shaped up-down adjusting bracket 6 and up-down adjusting screws 7 are arranged in the threaded holes, blind holes with the same depth and corresponding to the threaded holes at the two ends of the U-shaped up-down adjusting bracket 6 are arranged at the two sides of the top of the U-shaped fixed support frame 5, and the up-down adjusting screws 7 at the two ends of the U-shaped up-down adjusting bracket 6 are arranged in the two blind holes of the U-shaped fixed support frame 5, so that the height of the U-shaped up-down adjusting bracket 6 can be adjusted by rotating the two up-down adjusting screws 7.

[0023] In the embodiment, the dial indicator 8 is arranged on the measuring platform 2 through a dial indicator support 10, so that the horizontal precision of the traction pin 9 can be measured at any position.

[0024] In the embodiment, in order to facilitate the production of the measuring device, the measuring platform 2, the triangular vertical structural member 3, the V-shaped fixed bracket 4 and the U-shaped fixed support frame 5 are all made of 50mm-thick steel plates, the U-shaped up-down adjusting bracket 6 is made of 20mm-thick steel plates, and the up-down adjusting screw 7 is made of a round steel with a diameter of 10mm, which is convenient to obtain and low in cost.

[0025] Embodiment 2

[0026] The measuring method of the GK-type internal combustion locomotive heavy-duty traction pin levelness measuring device is as follows: firstly, the measuring platform 2 is placed on the lifting device 1, and the measuring platform 2 is adjusted to a suitable height and a horizontal state through the lifting device 1; secondly, the triangular vertical structural member 3 is installed on the upper surface of the measuring platform 2, then the U-shaped fixed support frame 5 is installed and tightly contacts the vertical surface of the triangular vertical structural member 3, the U-shaped up-down adjusting bracket 6 is installed on the top of the U-shaped fixed support frame 5 through the up-down adjusting screw 7, the V-shaped fixed bracket 4 is installed on the measuring platform 2 according to the length of the index pin 9, so that the U-shaped groove of the U-shaped up-down adjusting bracket 6 corresponds to the V-shaped groove of the V-shaped fixed bracket 4; thirdly, the traction pin 9 is horizontally placed on the U-shaped up-down adjusting bracket 6 and the V-shaped fixed bracket 4, the traction pin rear end disc 92 of the traction pin 9 tightly contacts the vertical surface of the triangular vertical structural member 3, the lower part of the outside of the traction pin rear end disc 92 is placed on the U-shaped groove of the U-shaped up-down adjusting bracket 6, and the end of the traction pin front end 91 is placed on the V-shaped groove of the V-shaped fixed bracket 4, then the dial gauge 8 is placed on both sides of the traction pin 9 in a horizontal position; fourthly, the distance between the U-shaped up-down adjusting bracket 6 and the U-shaped fixed support frame 5 is adjusted through the up-down adjusting screw 7 to ensure that the traction pin 9 is in a horizontal state, then the dial gauge 8 is used to perform symmetric and rotating measurement on the traction pin 9.

Claims

1. A GK type diesel locomotive heavy duty draft pin levelness measuring device, said draft pin (9) comprising a draft pin front end (91) and a draft pin rear end disc (92), characterized by: It include measuring platform (2), triangular vertical structural member (3) and dial indicator (8), the measuring platform (2) bottom is provided with lifting device (1), its top surface is according to traction pin (9) length interval is provided with U-shaped fixed support frame (5) and V-shaped fixed bracket (4) with U-shaped groove and V-shaped groove respectively, the triangular vertical structural member (3) bottom surface is arranged on the top surface of measuring platform (2), and the vertical surface is in close contact with the outer side of U-shaped fixed support frame (5), the U-shaped groove of U-shaped fixed support frame (5) is installed with the U-shaped up-down adjusting bracket (6) matched with it, and the top two sides are movably connected with the both ends of the U-shaped up-down adjusting bracket (6), the inner arc surface of U-shaped up-down adjusting bracket (6) is matched with the outer circle of traction pin rear end disc (92). The both ends of U-shaped up-down adjusting bracket (6) are provided with threaded holes and are installed with up-down adjusting screw (7), the top two sides of U-shaped fixed support frame (5) are respectively provided with blind hole corresponding to the threaded hole of both ends of U-shaped up-down adjusting bracket (6) and consistent in depth, and the up-down adjusting screw (7) of both ends of U-shaped up-down adjusting bracket (6) is respectively arranged in the two blind holes of U-shaped fixed support frame (5). The dial indicator (8) is arranged on the measuring platform (2) by dial indicator support (10).

2. A GK type diesel locomotive heavy duty drawbar levelness measuring device according to claim 1, characterized in that: The lifting device (1) is a jack arranged at the four corners of the bottom of the measuring platform (2).

3. The GK type heavy duty traction pin levelness measuring device for internal combustion locomotive according to claim 1, characterized in that: The measuring platform (2), triangular vertical structural member (3), V-shaped fixed bracket (4) and U-shaped fixed support frame (5) are all made of 50mm thick steel plate, the U-shaped up-down adjusting bracket (6) is made of 20mm thick steel plate, and the up-down adjusting screw (7) is made of round steel with a diameter of 10mm.

4. A measuring method of the horizontal degree measuring device of the heavy-duty traction pin of the GK-type internal combustion locomotive according to any one of claims 1-3, characterized in that: First, place the measuring platform (2) on the lifting device (1), and adjust the measuring platform (2) to the appropriate height and horizontal state through the lifting device (1); second, install the triangular vertical structural member (3) on the upper surface of the measuring platform (2) first, then install the U-shaped fixed support frame (5) and make the U-shaped fixed support frame (5) close to the vertical surface of the triangular vertical structural member (3), then install the U-shaped up-down adjusting bracket (6) on the top of the U-shaped fixed support frame (5) through the up-down adjusting screw (7) on both sides, then install the V-shaped fixed bracket (4) on the measuring platform (2) according to the length of the traction pin (9), so that the U-shaped groove of the U-shaped up-down adjusting bracket (6) corresponds to the V-shaped groove of the V-shaped fixed bracket (4); thirdly, place the traction pin (9) horizontally on the U-shaped up-down adjusting bracket (6) and the V-shaped fixed bracket (4), make the traction pin rear end disc (92) of the traction pin (9) close to the vertical surface of the triangular vertical structural member (3), place the traction pin rear end disc (92) outside the lower part on the U-shaped groove of the U-shaped up-down adjusting bracket (6), and place the end of the traction pin front end (91) on the V-shaped groove of the V-shaped fixed bracket (4), then place the dial gauge (8) on both sides of the traction pin (9) at a horizontal position; fourthly, adjust the distance between the U-shaped up-down adjusting bracket (6) and the U-shaped fixed support frame (5) through the up-down adjusting screw (7) to ensure that the traction pin (9) is in a horizontal state, and then use the dial gauge (8) to measure the symmetry and rotation at any position on the traction pin (9).

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