Gear C-shaped pin replacement tool of motor train unit sliding plug door stabilizer
By designing the gear C-type pin of the sliding door stabilizer to replace the tooling, the gear C-type pin is directly replaced on the EMU, simplifying the operation steps, reducing manpower and material consumption, avoiding sliding door failures, and ensuring the normal operation of the EMU.
Patent Information
- Application Number
- CN202510598783.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-09
- Publication Date
- 2025-07-08
AI Technical Summary
In the prior art, replacing the gear C-type pin of the EMU sling door stabilizer requires multiple people to operate for a long time, affecting the launch rate of the vehicle unit and may lead to changes in the reference of the sling door system and potentially causing hidden dangers in operating order.
Design a gear C-pin replacement tool for a sliding door stabilizer, including tooling chassis, sliders, threaded thrust rods and thrust pins. The threaded thrust rods drive the sliders and thrust pins to move on the gears, realizing direct replacement of the C-pin, simplifying it into 3 steps to avoid disassembling and assembling the stabilizer.
Replace the gear C-pin without getting off the car, reduce the workload, avoid sling door failure, ensure the stability of the system, and improve the on-line rate and operating order of the EMU.
Smart Images
Figure CN120269495A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of rail vehicles, and particularly to a C-pin replacement tool for a pantograph sliding door stabilizer of a multiple unit train. Background Art
[0002] With the development of society, multiple unit trains have gradually become one of the main means of transportation for people to travel. Therefore, the maintenance technology and maintenance tools of multiple unit trains are constantly innovating and developing. The purpose of researching a tool for replacing the gear C-pin of the pantograph sliding door stabilizer without getting off the train is to reduce the workload of replacing the gear C-pin of the pantograph sliding door stabilizer and avoid affecting the on-line rate of multiple unit trains.
[0003] The stabilizer is the benchmark of the entire pantograph sliding door system. The stabilizer bears the weight of the pantograph sliding door leaf and positions the pantograph sliding door when it is closed and opened. To solve this problem, in the existing solutions, the pantograph sliding door stabilizer is usually disassembled from the multiple unit train, and the gear C-pin is replaced with a cylindrical punch on the ground. After the C-pin replacement is completed, the stabilizer is reinstalled on the multiple unit train. There are three problems in the existing solutions: First, the workload is large, affecting the on-line rate of the train set. To replace the gear C-pin of the stabilizer, a total of 5 steps are involved. First, the pantograph sliding door leaf needs to be removed from the train set, which requires 4 people to cooperate to complete. Second, the stabilizer needs to be disassembled, which requires 2 people to cooperate to complete. Third, the gear C-pin is removed with a cylindrical punch on the ground, and a new C-pin is installed with a hammer. Fourth, after the C-pin of the stabilizer is replaced, the stabilizer is reinstalled. Fifth, finally, the door leaf is reinstalled. The reinstallation work also requires 4 people to cooperate to complete. The entire C-pin replacement work requires multiple people to work for a long time, affecting the on-line rate of the train set. Second, the problem of re-adjusting the pantograph sliding door. After disassembling and reinstalling the stabilizer, the installation benchmark of the pantograph sliding door system changes, and components such as the pantograph sliding door leaf, locking mechanism, and limit switch need to be re-adjusted to make the door opening and closing functions normal. Third, there is a problem of potential hidden danger affecting the operation order of multiple unit trains. After the static adjustment of the pantograph sliding door is completed, it cannot be guaranteed that the door opening and closing functions are absolutely normal. It is also necessary to run in on the line to make the pantograph sliding door system reach the best state. If a pantograph sliding door fails during the operation of a multiple unit train, resulting in the train being late, it will affect the operation order of the multiple unit train. Summary of the Invention
[0004] The present invention provides a gear C-pin replacement tool for a pantograph sliding door stabilizer to replace the gear C-pin without getting off the train for the pantograph sliding door stabilizer.
[0005] The technical solution of the present invention is as follows:
[0006] A gear C-pin replacement tool for a pantograph sliding door stabilizer of a multiple unit train, comprising:
[0007] The tooling chassis has a slide rail in its internal cavity, a first hole communicating with the internal cavity on one side of its outer surface, a second hole communicating with the internal cavity on the other side of its outer surface, and a fixing structure for fixing the gear on the other side of its outer surface;
[0008] The slider is assembled on the slide rail;
[0009] One end of the threaded ejector rod passes through the first hole and is connected to the slider;
[0010] One end of the ejector pin passes through the second hole and is connected to the slider;
[0011] The threaded ejector rod drives the slider to push the ejector pin to move towards one side of the gear, so that the other end of the ejector pin extends into the C-shaped pin hole of the gear to eject the C-shaped pin, or the other end of the ejector pin pushes the C-shaped pin into the C-shaped pin hole of the gear that extends into the gear.
[0012] Preferably, the fixing structure is a hook formed on the outer surface of the other side of the workpiece chassis, and the hook is used to hook the tooth root of the gear.
[0013] Preferably, the threaded ejector rod is provided with a coarse-thread external thread, and the first hole is provided with a coarse-thread internal thread, and the threaded ejector rod is threadedly connected in the first hole.
[0014] Preferably, there are two hooks, and the two hooks are used to symmetrically hook the tooth roots of the gear.
[0015] Preferably, the threaded ejector rod, the tooling chassis, the slider, and the ejector pin are all metal parts.
[0016] The beneficial effects of the present invention are as follows:
[0017] The replacement of the C-shaped pin of the gear is simplified from the existing 5 steps to directly 3 steps of replacing the C-shaped pin of the gear. The C-shaped pin of the gear can be replaced without the need to get off the vehicle of the sliding door stabilizer, which minimizes the workload of replacing the C-shaped pin; there is no need to debug the sliding door anymore, which also reduces the replacement workload; it also avoids the potential sliding door faults caused by the disassembly and assembly of the stabilizer, and eliminates the impact on the operation order of the EMU. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In the following, the present invention will be described in more detail based on the embodiments and with reference to the drawings.
[0019] Figure 1 It is a schematic diagram of the disassembly of the tooling in the embodiment of the present invention;
[0020] Figure 2 It is a schematic diagram of the disassembly of the tooling in the embodiment of the present invention;
[0021] Figure 3 It is a schematic diagram of the gear in the embodiment of the present invention;
[0022] Figure 4 Schematic diagram of the gear in the embodiment of the present invention;
[0023] Figure 5 Schematic diagram of the fixture assembly in the embodiment of the present invention;
[0024] Figure 6 is Figure 5 C-C cross-sectional view of;
[0025] Figure 7 is Figure 5 D-D cross-sectional view of. Specific implementation mode
[0026] Referring to Figures 1-7 , this embodiment provides a gear C-pin replacement fixture for a sliding plug door, which can replace the gear C-pin without removing the sliding plug door from the vehicle.
[0027] Referring to Figure 1 , Figure 2 , Figures 5-7 , the fixture in this embodiment includes:
[0028] Fixture chassis 1, in whose internal cavity there is a slide rail 11, on one side outer surface of which there is a first hole 12 communicating with the internal cavity, on the other side outer surface there is a second hole 13 communicating with the internal cavity, and on the other side outer surface there is a fixing structure 15 for fixing the gear 5;
[0029] Slider 2, which is assembled on the slide rail 11;
[0030] Threaded ejector rod 3, one end of which passes through the first hole 12 and is connected to the slider 2;
[0031] Ejector pin 4, one end of which passes through the second hole 13 and is connected to the slider 3.
[0032] As Figure 2 , for the fixture chassis 1, third holes 14 are provided on both sides of its internal cavity; during assembly, first place the slider 2 in the internal cavity of the fixture chassis 1, one end of the slide rail 11 is inserted through the third hole 14 provided at the side end of the fixture chassis 1, then passes through this internal cavity and is inserted into the third hole 14 on the other side of the internal cavity, and moreover, this part of the slide rail 11 in the internal cavity is snapped into the groove 21 of the slider 2. In addition, in order to prevent the slide rail 11 from falling off, a first screw hole is provided in the radial direction of the slide rail 11, and a second screw hole is provided on the fixture chassis 1. By screwing a screw through the second screw hole of the fixture chassis 1 into the first screw hole of the slide rail 11, the fixture chassis 1 and the slide rail 11 are screwed and fixed.
[0033] Combined with Figure 3 , Figure 4 ,Figure 6 and Figure 7 When the C-shaped pin 51 needs to be replaced, lower the tooling from the upper part of the gear 5 of the stabilizer so that the hooks symmetrically hook the two tooth roots of the gear 5 to fix the gear 5. Then, rotate the threaded ejector rod 3 forward with a wrench to push the slider 2 to move forward in parallel along the slide rails 11 on both sides of the tooling chassis 1, so that the other end of the ejector pin 4 extends into the C-shaped pin hole of the gear 5, and the C-shaped pin 51 installed in the C-shaped pin hole of the gear 5 is ejected. When replacing the new C-shaped pin 51, first reset the tooling, that is, rotate the threaded ejector rod 3 reversely with a wrench, and at the same time retract the slider 2 to the middle position, manually withdraw the ejector pin 4 from the C-shaped pin hole of the gear 5. Then, place the new C-shaped pin 51 in front of the ejector pin 4, and rotate the threaded ejector rod 3 forward with a wrench to drive the ejector pin 4 to push the new C-shaped pin 51 into the C-shaped pin hole of the gear 5.
[0034] In this embodiment, the fixing structure 15 is a hook formed on the outer surface of the other side of the workpiece chassis 1, and the hook is used to hook the tooth root of the gear 5. Combining Figure 5 it can be seen that the two symmetrically arranged hooks respectively symmetrically hook the two tooth roots of the gear 5, thereby fixing the gear 5 to prevent the gear 5 from moving relative to the ejector pin 4 when the C-shaped pin is pushed out / installed. Specifically, the gear 5 is installed on the top of the stabilizer connecting rod, the tooling is lowered from the upper part of the gear 5, and the hooks hook the gear 5 along the symmetric tooth roots; after the replacement is completed, the tooling is removed upward along the gear 5.
[0035] In this embodiment, the threaded ejector rod 3 is provided with a coarse-thread external thread, and the first hole 12 is provided with a coarse-thread internal thread, and the threaded ejector rod 3 is threadedly connected in the first hole 12.
[0036] In this embodiment, the threaded ejector rod 3, the tooling chassis 1, the slider 2, and the ejector pin 4 are all metal parts.
[0037] Using the above tooling in this embodiment can directly replace the C-shaped pin 51 of the stabilizer gear 5 on the EMU without disassembling and assembling the stabilizer, minimizing the workload of C-shaped pin replacement, saving a large amount of manpower and material resources, and reducing the impact on the EMU on-line rate; the installation benchmark of the sliding plug door system remains unchanged, and there is no need to debug components such as the sliding plug door leaf, locking mechanism, and limit switch, which also reduces the workload of replacement; it also avoids potential sliding plug door faults caused by the disassembly and assembly of the stabilizer, eliminating the impact on the EMU operation order.
Claims
1. A gear C-pin replacement tool for the sliding plug door stabilizer of a multiple unit train, characterized in that, Including: A tooling chassis (1), in whose internal cavity there is a slide rail (11), on one side of its outer surface there is a first hole (12) communicating with the internal cavity, on the other side of its outer surface there is a second hole (13) communicating with the internal cavity, and on the other side of its outer surface there is a fixing structure (15) for fixing the gear (5); A slider (2) assembled on the slide rail (11); A threaded ejector rod (3), one end of which passes through the first hole (12) and is connected to the slider (2); A ejector pin (4), one end of which passes through the second hole (13) and is connected to the slider (2); The threaded ejector rod (3) drives the slider (2) to push the ejector pin (4) to move towards one side of the gear (5), so that the other end of the ejector pin (4) extends into the C-shaped pin hole of the gear (5) to eject the C-shaped pin (51), or the other end of the ejector pin (4) ejects the C-shaped pin (51) into the C-shaped pin hole extending into the gear (5).
2. The gear C-pin replacement tooling for the plug door stabilizer of the multiple unit train, characterized in that The fixing structure (15) is a hook formed on the outer surface of the other side of the workpiece chassis (1), and the hook is used to hook the tooth root of the gear (5).
3. The gear C-pin replacement tooling for the plug door stabilizer of the multiple unit train, as claimed in claim 1, wherein The threaded ejector rod (3) is provided with a coarse-thread external thread, and the first hole (12) is provided with a coarse-thread internal thread, and the threaded ejector rod (3) is threadedly connected in the first hole (12).
4. The gear C-pin replacement tooling for the plug door stabilizer of the multiple unit train, characterized in that, There are two hooks, and the two hooks are used to symmetrically hook at the tooth root of the gear (5).
5. The gear C-pin replacement tooling for the sliding plug door stabilizer of the multiple unit train, characterized in that, The threaded ejector rod (3), the tooling chassis (1), the slider (2), and the ejector pin (4) are all metal parts.