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CN-121973822-A - Automatic car coupler

CN121973822ACN 121973822 ACN121973822 ACN 121973822ACN-121973822-A

Abstract

The invention relates to an automatic coupler, which comprises a coupler body, a positioning hole and a convex cone, wherein a quadrangular concave cone structure is arranged at the front end of the coupler body, a rectangular opening is arranged at the front end of the concave cone, a plane where the opening is located is a connecting surface of the coupler, the positioning hole is arranged on the bottom wall of the concave cone, the convex cone and the positioning hole are fixed on the bottom wall of the concave cone side by side, one end of the convex cone penetrates through the concave cone and protrudes out of the connecting surface, a conical surface is arranged at the end of the convex cone protruding out of the connecting surface, the inclination angle of the conical surface is matched with the inclination angle of the inner wall of the concave cone, and when the coupler is connected, the convex cone is guided by the inner wall of the concave cone of the opposite coupler and then inserted into the positioning hole of the opposite coupler. The invention realizes the automatic centering of the couplers during the coupling, and the matching of the convex cones with the four-corner concave cone structures can automatically correct the large transverse and vertical offset between the two couplers, so that the automatic couplers can adapt to the small curve working condition of the micro-rail vehicle.

Inventors

  • ZHAO HAI
  • WANG GUANGCHAO
  • ZHAO ZHENGHAO
  • Zhu xingchen

Assignees

  • 中车制动系统有限公司

Dates

Publication Date
20260505
Application Date
20260331

Claims (10)

  1. 1. An automatic coupler, comprising: the front end of the concave cone is provided with a rectangular opening, and the plane where the opening is positioned is the connecting surface of the coupler; The positioning hole is arranged on the bottom wall of the concave cone; the convex cone and the positioning Kong Bingpai are fixed on the bottom wall of the concave cone, and one end of the convex cone penetrates through the concave cone and protrudes out of the connecting surface; The end part of the convex cone protruding out of the connecting surface is provided with a conical surface, and the inclined angle of the conical surface is matched with the inclined angle of the inner wall of the concave cone; When the coupler is connected, the convex cone is inserted into the positioning hole of the opposite coupler after being guided by the inner wall of the concave cone of the opposite coupler.
  2. 2. The automatic coupler of claim 1, further comprising a locking groove provided at an end of the nose cone; The hook body is provided with a cavity, one side of the cavity is communicated with the positioning hole, a locking component is arranged in the cavity, and the locking component comprises: The lock tongue is telescopically arranged in the cavity and is used for being clamped with a locking groove of a convex cone of the opposite coupler; the locking spring is sleeved on the lock tongue and is in butt joint with the flange, and is used for pushing the lock tongue into the positioning hole.
  3. 3. The automatic car coupler of claim 2, wherein the other side of the cavity is closed by a cover plate, a through hole is formed in the cover plate, and the other end of the lock tongue passes through the through hole and extends out of the cavity.
  4. 4. The automatic coupler according to claim 2 or 3, wherein a bolt inclined surface is arranged at the end part of the bolt extending into the positioning hole, and the bolt inclined surface is matched with the inclined angle of the conical surface of the convex cone; When the coupler is connected, the conical surface of the convex cone contacts with the inclined surface of the lock tongue and slides relatively, the conical surface of the convex cone applies pressure to the inclined surface of the lock tongue to push the lock tongue into the cavity completely, and when the locking groove of the convex cone aligns with the lock tongue, the lock tongue resets under the action of the locking spring and is locked with the locking groove.
  5. 5. The automatic car coupler of claim 1, wherein a rectangular opening of the concave cone is provided with a positioning table protruding forward from the connecting surface; After the couplers are connected, the positioning table is clamped with the edge of the concave cone of the opposite coupler so as to limit the relative movement between the couplers.
  6. 6. The automatic coupler of claim 5 wherein said positioning table is L-shaped and includes two positioning tables each disposed at opposite corners of said rectangular opening.
  7. 7. The automatic coupler of claim 1, wherein a pull ring is arranged at the tail of the coupler body, and a node assembly is arranged in the pull ring, wherein the node assembly comprises a central shaft and a guide cylinder; The guide cylinder is sleeved outside the central shaft, and the outer diameter of the guide cylinder is matched with the inner diameter of the pull ring.
  8. 8. The automatic coupler of claim 7, wherein the mounting assembly includes a connector, a mounting bolt, and a mounting nut; The two ends of the connecting piece are respectively connected with the central shaft and the car body mounting surface, the mounting bolt penetrates through the central shaft, the connecting piece and the car body mounting surface to connect the central shaft, the connecting piece and the car body mounting surface in series, and the mounting nut is used for fastening the central shaft, the connecting piece and the car body mounting surface.
  9. 9. The automatic coupler of claim 7 wherein said central shaft and an exterior of said guide cylinder are encased with a vulcanized rubber layer.
  10. 10. The automatic coupler of claim 1 further comprising a centering spring secured to said coupler body at one end and to the body at the other end for providing a centering force to the coupler.

Description

Automatic car coupler Technical Field The invention belongs to the technical field of railway vehicles, and particularly relates to an automatic coupler. Background The ultra-light railway vehicle, namely a micro-rail vehicle for short, is a novel railway traffic vehicle developed based on ultra-low traffic and flexible travel requirements. Micro-rail vehicles have much lower passenger capacity than conventional rail vehicles, typically around 4 to 20 persons. The micro-rail vehicle can be operated in a single section, can be flexibly grouped according to the traffic demand, and can be operated in a reconnection multi-grouping mode. Since the micro rail vehicles have low passenger capacity, in order to achieve weight saving of the whole equipment, the automatic couplers installed on the micro rail vehicles must be controlled to have weight, for example, within 50 kg. And, moreover, the method comprises the steps of. In order to meet the requirement of longitudinal force transmission under flexible grouping working conditions, the longitudinal compression yield strength of the coupler needs to reach the order of 50kN to 100 kN. Meanwhile, the coupler has a larger coupling range so as to meet the application requirement of developing automatic mechanical coupling when the train is on a small curve. The existing conventional automatic coupler applied to railway vehicles such as subways generally has the compressive yield strength of more than 1000kN, and the weight of the conventional automatic coupler is generally more than 300kg although the conventional automatic coupler is required by far-ultra-micro railway vehicles, and the conventional automatic coupler can be more than 50kg only by a coupling system, so that the use condition of the micro railway vehicles cannot be met. In addition, the automatic coupling range of the conventional automatic coupler is about vertical +/-90 mm and transverse +/-170 mm, and when the automatic coupler is applied to a micro-rail vehicle, the automatic coupling range cannot meet the automatic coupling requirement of a small-curve coupler because the vehicle distance and the curve radius of a line are smaller. Disclosure of Invention The invention aims to solve one of the technical problems and provide an automatic coupler which can realize automatic mechanical coupling while the yield strength is required to reach 50-100 kN magnitude and has a larger transverse and vertical automatic coupling range. In order to achieve the above purpose, the invention adopts the following technical scheme: An automatic coupler, comprising: The front end of the concave cone is provided with a rectangular opening, and the plane where the opening is positioned is the connecting surface of the coupler; the positioning hole is arranged on the bottom wall of the concave cone; the convex cone is fixed on the bottom wall of the concave cone side by side with the positioning hole, and one end of the convex cone penetrates through the concave cone and protrudes out of the connecting fine dried noodles; The end part of the convex cone protruding out of the connecting fine dried noodles is provided with a conical surface, and the inclination angle of the conical surface is matched with the inclination angle of the inner wall of the concave cone; when the coupler is connected, the convex cone is guided by the inner wall of the concave cone of the opposite coupler and then inserted into the positioning hole of the opposite coupler. In some embodiments of the invention, the method further comprises the steps that the end part of the convex cone is provided with a locking groove; The hook body is provided with a cavity, one side of the cavity is communicated with the positioning hole, a locking component is arranged in the cavity, and the locking component comprises: The lock tongue is telescopically arranged in the cavity and is used for being clamped with a locking groove of a convex cone of the opposite coupler; the locking spring is sleeved on the lock tongue and is abutted with the flange, and the locking spring is used for pushing the lock tongue into the positioning hole. In some embodiments of the invention, the other side of the cavity is closed by a cover plate, a through hole is formed in the cover plate, and the other end of the lock tongue extends out of the cavity through the through hole. In some embodiments of the invention, the end part of the lock tongue extending into the positioning hole is provided with a lock tongue inclined plane, and the inclined plane of the lock tongue is matched with the inclined angle of the conical surface of the convex cone; When the coupler is connected, the convex cone applies pressure to the inclined surface of the lock tongue in the process of moving into the positioning hole, the lock tongue is extruded outwards, and when the locking groove of the convex cone is aligned with the lock tongue, the lock tongue is reset under the action of the locking spring a