An electrical coupler connection device for heavy-duty railway freight cars and its manufacturing method

Abstract

The present invention discloses an electrical coupler connection device for heavy-duty railway trucks and a manufacturing method thereof, relating to the technical field of coupler connection technology. The device comprises a base device, a push-pull mechanism, and an electrical box device, which are sequentially connected by a detachable connection method. The base device, the push-pull mechanism, and the electrical box device form an integral structure that is detachably mounted on the coupler. Anti-loosening mechanisms are provided between the components of the base device, the push-pull mechanism, and the electrical box device. The base device, the push-pull mechanism, and the electrical box device of the present invention form an independent auxiliary device. The main type coupler (Type 16 and Type 17 coupler) of domestic 70t-class freight cars is used as the carrier (body) of the electrical coupler. Almost no modification is made to the coupler body, thereby meeting the requirements for heavy-duty truck traction formation and facilitating rapid and large-scale promotion.

Description

Technical Field

[0001] The present invention relates to the technical field of coupler connection, and more particularly to the technical field of electrical coupler connection devices and manufacturing methods for railway heavy-duty freight cars. Background Art

[0002] The electrical coupler connection device for railway heavy-duty freight cars is an execution unit for the circuit and gas connection actions of the electrical intelligent coupler of railway freight cars, and is an important part of the intelligent coupler of railway freight cars.

[0003] Currently, intelligent railway freight car couplers (digital automatic couplers) are still in the line testing phase both domestically and internationally. They all use close-coupled couplers, which are expensive to manufacture and, due to structural limitations, can only accommodate short trains under 2,000 tons, making them incompatible with existing freight cars. North America is using an F-type interlocking coupler structure, integrating the air and electrical connections within the coupler body. This approach has only undergone functional testing, as wear on the coupler poses a challenge to air and electrical sealing, and remains at the testing stage.

[0004] At present, the 16-type and 17-type couplers for domestic 70t-class trucks are interlocking couplers. However, after being connected, this type of coupler has large gaps, large rotation angles, and large wear compared to close-connected couplers. Therefore, it is necessary to design an auxiliary device to ensure the reliability of the circuit and air circuit connections of the electric couplers for heavy-duty trucks. Summary of the Invention

[0005] The purpose of the present invention is to solve the above technical problems and provide an electric coupler connection device for heavy-duty railway freight cars and a manufacturing method thereof.

[0006] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0007] One aspect of the present invention provides an electrical coupler connection device for a heavy-duty railway truck, comprising a base device, a push-pull mechanism, and an electrical box device connected in sequence by a detachable connection. The overall structure composed of the base device, the push-pull mechanism, and the electrical box device is detachably arranged on the coupler, and anti-loosening mechanisms are provided between the components of the base device, the push-pull mechanism, and the electrical box device.

[0008] Specifically, the base device, push-pull mechanism and electrical box device of this scheme form an independent auxiliary device, which adopts the main type coupler (Type 16 and Type 17 coupler) of domestic 70t-class freight cars as the coupler body. Almost no changes are made to the coupler body, which can not only meet the requirements of heavy-loaded freight car traction formation, but also facilitate and quickly promote it on a large scale.

[0009] In one embodiment, the base device includes a vertical elastic adjustment device, a transverse centering reset device, a two-way rotating shaft device and a mounting base plate; the mounting base plate is installed on the coupler shoulder, and the vertical elastic adjustment device, the transverse centering reset device and the two-way rotating shaft device are all detachably arranged on the base device, the transverse centering reset device includes a roller, and the two-way rotating shaft device includes a vertical rotating shaft and a transverse rotating shaft. The vertical rotating shaft cooperates with the roller so that the longitudinal center of the connecting device coincides with the longitudinal center of the coupler when not subject to external force, and the transverse rotating shaft and the vertical elastic adjustment device cooperate with each other to adjust so that the connecting device always remains horizontal when not subject to external force.

[0010] Specifically, the base device is welded to the upper plane of the coupler shoulder (Type 16 and Type 17 couplers), and the roller of the transverse centering and resetting device cooperates with the vertical shaft in the two-way shaft device to ensure that the longitudinal center of the entire connecting device coincides with the longitudinal center of the coupler when not subject to external force; the transverse shaft of the two-way shaft device cooperates and adjusts with the vertical elastic adjustment device to ensure that the connecting device always remains horizontal when not subject to external force.

[0011] A vertical elastic support device and a bidirectional rotating shaft are used to solve the problems of the horizontal and vertical relative angles between the couplers and the hook height difference after the two couplers are connected.

[0012] A spring preload device and an electric push rod are combined to solve the problems of the impact of air pressure impulse when the air circuits of the electrical couplers of two heavy-duty railway freight cars are connected and the increase in the gap between the two couplers due to coupler wear.

[0013] In one embodiment, the pushing and pulling mechanism includes a pushing and pulling device, a self-locking device and a bracket that are detachably connected from bottom to top. The bracket is installed below the electrical box device. The pushing and pulling device is connected to the base device. The pushing and pulling device includes a base plate, a slider, an electric push rod, a guide rail and a spring preload device. The front end of the spring preload device is fixed to the lower front of the bracket, and the rear end is connected to the electric push rod. The guide rail is fixed on the base plate. The guide rail and the slider slide together. The electric push rod drives the slider to move. When the slider moves to the end of the guide rail, it begins to squeeze the spring preload device. The spring preload device is provided with a trigger mechanism that controls the opening and closing of the self-locking device to achieve mechanical self-locking of the two connecting devices.

[0014] Specifically, the trigger mechanism is a wheel-shaped mechanism. After the electric push rod in the push-pull mechanism is pushed out, it drives the slider to slide on the guide rail. When it reaches the end of the guide rail, it begins to compress the spring preload device and drives its trigger mechanism forward, causing the self-locking device to switch from the open state to the locked state. This achieves mechanical self-locking of the two connecting devices, ensuring that the front ends of the electrical box components of the two connecting devices are in contact during the operation of the truck. This ensures that the two connecting devices are tightly connected and the air and electrical circuits are connected smoothly during the operation of the vehicle.

[0015] A self-locking device is used to mechanically lock the electrical coupler connection device in both directions after the two couplers are connected, ensuring the connectivity of the protected air and circuits in the electrical coupler connection device during the operation of the freight car.

[0016] In one embodiment, the electrical box device includes a guide plate assembly, a guide pin assembly, a gear rack mechanism and a box body assembly. The guide plate assembly and the guide pin assembly are both located below the box body assembly. The gear rack mechanism is located inside the box body assembly. The box body assembly includes a cavity with an opening at one end, a front cover assembly hinged outside the cavity, positioning holes and positioning pins on an integrated mounting base for an air connector and an electrical connector, and a second rotating shaft fixedly connected to the front cover assembly. The second rotating shaft is movably arranged on the cavity, and the gear rack mechanism drives the second rotating shaft to rotate.

[0017] Specifically, after the electric push rod in the push-pull mechanism is pushed out, the guide pin assembly, via the guide plate assembly, guides the two connecting devices' box assembly into initial positioning. The guide pin triggers the rack-and-pinion mechanism to begin operation. The rack-and-pinion mechanism and the second rotating shaft cooperate to convert the guide pin's translational motion into rotational motion of the front cover assembly. Positioning holes and pins integrated with the air and electrical connectors within the box assembly provide secondary, precise positioning, ensuring precise alignment of the air and electrical connectors within the box assembly.

[0018] The guide plate assembly and the guide pin assembly are used to perform the initial positioning of the two connecting devices of the coupler; the positioning holes and positioning pins are used to perform the precise positioning of the air circuit and the circuit in the box assembly before the connection.

[0019] In one embodiment, a tension spring is provided outside the cavity, one end of the tension spring is connected to the outer wall of the cavity, and the other end is provided on the crank formed by the front cover.

[0020] Specifically, the tension spring serves two purposes: it is a locking spring for the front cover assembly in the open state (the coupler connection device is in the working state) and the closed state (the coupler connection device is in the non-working state), and it is also a return spring for the front cover assembly from the open state to the closed state.

[0021] In one embodiment, the electrical box assembly is rotationally engaged with the coupler.

[0022] Specifically, the rotational coordination between the two can eliminate the problem of the turning angle between the couplers after coupling, and ensure that the electrical box device will not move relative to the swing of the coupler when the vehicle passes through a curved section, and can ensure a stable connection between the internal circuit and the air circuit connector of the box body.

[0023] In one embodiment, the rack and pinion mechanism includes a contact, a first rotating shaft assembly, and a rack and pinion assembly that drives the first rotating shaft assembly to rotate. The contact triggers the rack and pinion assembly to work, and the guide pin cooperates with the contact. A driving gear and a driving shaft are provided on the first rotating shaft assembly, and a driven shaft that cooperates with the driving shaft is provided on the second rotating shaft. The driving shaft and the driven shaft are connected by bolts, and the driving gear drives the driving shaft and the driven shaft to realize the rotation of the front cover assembly.

[0024] Specifically, after the electric push rod in the push-pull mechanism is pushed out, the guide pin assembly guides the two connecting devices' box assembly through the guide plate assembly to initially position itself. The guide pin then touches (pushes) the contacts of the rack-and-pinion mechanism. The first rotating shaft assembly and the second rotating shaft cooperate to convert the guide pin's translational motion into rotational motion of the front cover assembly. The rack-and-pinion mechanism, featuring high transmission efficiency, high precision, and excellent stability, ensures that the front cover assembly opens within the designed stroke.

[0025] In one embodiment, the base device, the push-pull mechanism, and the electrical box device are detachably connected by bolts, and the anti-loosening mechanism is an anti-loosening plate provided at each bolt.

[0026] Specifically, the setting of the anti-loosening piece ensures the accuracy, reliability and maintainability of the connection.

[0027] Another aspect of the present invention provides a method for manufacturing an electric coupler connection device for a heavy-duty railway freight car, which is used to manufacture the above-mentioned electric coupler connection device for a heavy-duty railway freight car.

[0028] In one embodiment, the two connecting devices are respectively installed on the two couplers of a heavy-duty truck. After the electric push rod is pushed out, it drives the slider to slide on the guide rail. At the same time, the guide pin touches the contact of the gear rack mechanism. When it reaches the end of the guide rail, it begins to compress the spring preload device and drives the trigger mechanism forward, so that the self-locking device switches from the open state to the locked state, ensuring that the end doors of the two connecting devices are tightly connected during the operation of the vehicle and the air and electrical connections are unobstructed.

[0029] The beneficial effects of the present invention are as follows:

[0030] 1. As an independent auxiliary device, the present invention adopts Type 17 and Type 16 couplers as coupler carriers, and hardly makes any changes to the coupler body. It can not only meet the requirements of heavy-duty truck traction formation, but also can be directly installed on the 70t-class main type truck coupler in my country, which is convenient and fast to promote on a large scale.

[0031] 2. The components of the present invention are connected by bolts, and each bolt is equipped with an anti-loosening piece to ensure the accuracy, reliability and maintainability of the connection.

[0032] 3. The present invention solves the problem of low strength and small grouping of digital couplers using close-connected couplers.

[0033] 4. The connecting device is used in pairs (i.e. each trailer coupler is integrated with the connecting device), and the active end and the driven end are used in conjunction to ensure the synchronization of the opening of the front cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 The present invention is a structural diagram of an electrical coupler connection device for a railway heavy-duty freight car;

[0035] Figure 2 It is an axonometric view of the rack and pinion mechanism;

[0036] Figure 3 It is an axonometric drawing of the box composition;

[0037] Figure 4 It is an axonometric view of the push-and-pull mechanism;

[0038] Figure 5 It is an axonometric view of a bidirectional rotating shaft device;

[0039] Figure 6 It is a structural diagram of the lateral centering reset device;

[0040] Figure 7 yes Figure 6 sectional view of

[0041] Figure 8 It is an axonometric view of the guide pin composition;

[0042] Figure 9 This is an axonometric drawing of the two connecting devices after the coupler is connected;

[0043] Figure 10 It is the axonometric drawing (working state) of the connecting device (active end);

[0044] Figure 11 It is the axonometric view (working state) of the connecting device (driven end);

[0045] Reference numerals: 1-base device, 2-pushing and pulling mechanism, 3-electrical box device;

[0046] 1.1-Vertical elastic adjustment device, 1.2-Horizontal centering reset device, 1.3-Bidirectional rotating shaft device, 1.4-Mounting base plate;

[0047] 1.2.1-Roller; 1.3.1-Vertical axis;

[0048] 2.1-Pushing and pulling device, 2.2-Self-locking device, 2.3-Bracket composition;

[0049] 2.1.1- Electric push rod, 2.1.2- Guide rail, 2.1.3- Spring preload device;

[0050] 3.1-guide plate composition, 3.2-guide pin composition, 3.3-gear rack mechanism, 3.4-box body composition;

[0051] 3.3.1-Contact, 3.3.2-First shaft assembly;

[0052] 3.4.1-Location hole, 3.4.2-Location pin, 3.4.3-Front cover assembly, 3.4.4-Second rotating shaft. DETAILED DESCRIPTION

[0053] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0054] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0055] It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings. In addition, the terms "first," "second," etc. are used only to distinguish the descriptions and are not to be understood as indicating or implying relative importance.

[0056] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0057] Example 1

[0058] like Figures 1 to 7As shown, this embodiment provides an aspect of the present invention that provides an electrical coupler connection device for a railway heavy-duty freight car, comprising a base device 1, a push-pull mechanism 2, and an electrical box device 3 that are sequentially connected in a detachable manner. The overall structure composed of the base device 1, the push-pull mechanism 2, and the electrical box device 3 is detachably arranged on the coupler, and anti-loosening mechanisms are provided between the components of the base device 1, the push-pull mechanism 2, and the electrical box device 3.

[0059] Specifically, the base device 1, the pushing and pulling mechanism 2 and the electrical box device 3 of this scheme form an independent auxiliary device, which adopts the main type coupler (Type 16 and Type 17 coupler) of domestic 70t-class freight cars as the coupler body, and makes almost no changes to the coupler body. It can not only meet the requirements of heavy-loaded freight car traction formation, but also facilitate and quickly promote it on a large scale.

[0060] In one embodiment, the base device 1 includes a vertical elastic adjustment device 1.1, a transverse centering reset device 1.2, a two-way rotating shaft device 1.3 and a mounting base plate 1.4; the mounting base plate 1.4 is installed on the coupler shoulder, and the vertical elastic adjustment device 1.1, the transverse centering reset device 1.2 and the two-way rotating shaft device 1.3 are all detachably arranged on the base device 1, the transverse centering reset device 1.2 includes a roller 1.2.1, and the two-way rotating shaft device 1.3 includes a vertical rotating shaft 1.3.1 and a transverse rotating shaft. The vertical rotating shaft 1.3.1 cooperates with the roller 1.2.1 so that the longitudinal center of the connecting device coincides with the longitudinal center of the coupler when not subject to external force, and the transverse rotating shaft and the vertical elastic adjustment device 1.1 cooperate with each other to adjust so that the connecting device always remains horizontal when not subject to external force.

[0061] Specifically, the base device 1 is welded to the upper plane of the hook shoulder of the coupler (Type 16, Type 17 coupler), and the roller 1.2.1 of the transverse centering reset device 1.2 and the vertical shaft 1.3.1 in the two-way shaft device 1.3 cooperate with each other to ensure that the longitudinal center of the entire connecting device coincides with the longitudinal center of the coupler when not subject to external force; the transverse shaft of the two-way shaft device 1.3 and the vertical elastic adjustment device 1.1 cooperate and adjust to ensure that the connecting device always remains horizontal when not subject to external force.

[0062] A vertical elastic support device and a bidirectional rotating shaft are used to solve the problems of the horizontal and vertical relative angles between the couplers and the hook height difference after the two couplers are connected.

[0063] The combination of the spring preload device 2.1.3 and the electric push rod 2.1.1 solves the problems of the influence of the air pressure impulse when the air circuits of the electrical couplers of two heavy-duty railway freight cars are connected and the increase in the gap between the two couplers after the couplers are worn.

[0064] In one embodiment, the pushing and pulling mechanism 2 includes a pushing and pulling device 2.1, a self-locking device 2.2 and a bracket assembly 2.3 that are detachably connected from bottom to top. The bracket assembly 2.3 is installed below the electrical box device 3. The pushing and pulling device 2.1 is connected to the base device 1. The pushing and pulling device 2.1 includes a base plate, a slider, an electric push rod 2.1.1, a guide rail 2.1.2 and a spring preload device 2.1.3. The front end of the spring preload device 2.1.3 is fixed to the lower front of the bracket assembly 2.3, and the rear end is connected to the electric push rod 2.1.1. The guide rail 2.1.2 is fixed on the base plate. The guide rail 2.1.2 slides with the slider. The electric push rod 2.1.1 drives the slider to move. When the slider moves to the end of the guide rail 2.1.2, it begins to squeeze the spring preload device 2.1.3. The spring preload device 2.1.3 is provided with a trigger mechanism that controls the opening and closing of the self-locking device 2.2 to achieve mechanical self-locking of the two connecting devices.

[0065] Specifically, the trigger mechanism is a wheel-like mechanism. After the electric push rod 2.1.1 in the push-pull mechanism 2 is pushed out, it drives the slider to slide along the guide rail 2.1.2. When it reaches the end of the guide rail 2.1.2, it begins to squeeze the spring preload device 2.1.3 and drives its trigger mechanism forward, causing the self-locking device 2.2 to switch from the open state to the locked state, achieving mechanical self-locking of the two connecting devices. This ensures that the front ends of the electrical box components of the two connecting devices are in contact during the operation of the truck. This ensures that the end doors of the two connecting devices are tightly connected and the air and electrical circuits are connected smoothly during the operation of the vehicle.

[0066] The self-locking device 2.2 is used to mechanically lock the electrical coupler connection device in both directions after the two couplers are connected, ensuring the connectivity of the protected air and circuits in the electrical coupler connection device during the operation of the freight car.

[0067] In one embodiment, the electrical box device 3 includes a guide plate assembly 3.1, a guide pin assembly 3.2, a gear rack mechanism 3.3 and a box body assembly 3.4. The guide plate assembly 3.1 and the guide pin assembly 3.2 are both located below the box body assembly 3.4. The gear rack mechanism 3.3 is located inside the box body assembly 3.4. The box body assembly 3.4 includes a cavity with an opening at one end, a front cover assembly 3.4.3 hinged outside the cavity, a positioning hole 3.4.1 and a positioning pin 3.4.2 on an integrated mounting base for an air connector and an electrical connector, and a second rotating shaft 3.4.4 fixedly connected to the front cover assembly 3.4.3. The second rotating shaft 3.4.4 is movably arranged on the cavity, and the gear rack mechanism 3.3 drives the second rotating shaft 3.4.4 to rotate.

[0068] Specifically, after the electric push rod 2.1.1 in the push-pull mechanism 2.1 is pushed out, the guide pin assembly 3.2, via the guide plate assembly 3.1, guides the two connecting devices, the housing assembly 3.4, into initial alignment. The guide pin triggers the rack-and-pinion mechanism 3.3 to begin operation. The rack-and-pinion mechanism 3.3 and the second rotating shaft 3.4.4 cooperate to convert the guide pin's translational motion into rotational motion in the front cover assembly 3.4.3. The housing assembly 3.4 is equipped with an integrated mounting base for the air and electrical connectors, along with positioning holes 3.4.1 and positioning pins 3.4.2, for secondary precision positioning, ensuring precise alignment of the air and electrical connectors within the housing assembly 3.4.

[0069] The guide disc assembly 3.1 and the guide pin assembly 3.2 are used to perform the initial positioning of the two connecting devices of the coupler; the positioning holes 3.4.1 and the positioning pins 3.4.2 are used to perform the precise positioning of the air circuit and the circuit in the box assembly 3.4 before the connection.

[0070] In one embodiment, a tension spring is provided outside the cavity, one end of the tension spring is connected to the outer wall of the cavity, and the other end is provided on the crank of the front cover component 3.4.3.

[0071] Specifically, the tension spring serves two purposes: it is a locking spring for the front cover component 3.4.3 in the open state (the coupler connection device is in the working state) and the front cover component 3.4.3 in the closed state (the coupler connection device is in the non-working state), and it is also a return spring for the front cover component 3.4.3 from the open state to the closed state.

[0072] In one embodiment, the electrical box device 3 is rotationally engaged with the coupler.

[0073] Specifically, the rotational coordination between the two can eliminate the problem of the rotation angle between the couplers after coupling, and ensure that the electrical box device 3 will not move relative to the swing of the coupler when the vehicle passes through a curved section, and can ensure a stable connection between the circuit and the gas circuit connector in the box body component 3.4.

[0074] In one embodiment, the rack and pinion mechanism 3.3 includes a contact 3.3.1, a first rotating shaft assembly 3.3.2, and a rack and pinion assembly that drives the first rotating shaft assembly 3.3.2 to rotate. The contact 3.3.1 triggers the rack and pinion assembly to operate, and the guide pin cooperates with the contact 3.3.1. The first rotating shaft assembly 3.3.2 is provided with a driving gear and a driving shaft, and the second rotating shaft 3.4.4 is provided with a driven shaft that cooperates with the driving shaft. The driving shaft and the driven shaft are fastened with bolts, and the driving gear drives the driving shaft and the driven shaft to realize the rotation of the front cover assembly 3.4.3.

[0075] Specifically, after the electric push rod 2.1.1 in the push-pull mechanism 2.1 is pushed out, the guide pin assembly 3.2, via the guide plate assembly 3.1, guides the two connecting mechanisms' box assembly 3.4 to initial positioning. The guide pin then contacts (pushes) the contact 3.3.1 of the rack-and-pinion mechanism 3.3. The first rotating shaft assembly 3.3.2 and the second rotating shaft 3.4.4 cooperate to convert the guide pin's translational motion into rotational motion for the front cover assembly 3.4.3. The rack-and-pinion mechanism 3.3, with its high transmission efficiency, precision, and stability, ensures that the front cover assembly 3.4.3 opens within the designed stroke.

[0076] In one embodiment, the base device 1, the push-pull mechanism 2, and the electrical box device 3 are detachably connected by bolts, and the anti-loosening mechanism is an anti-loosening plate provided at each bolt.

[0077] Specifically, the setting of the anti-loosening piece ensures the accuracy, reliability and maintainability of the connection.

[0078] Another aspect of the present invention provides a method for manufacturing an electric coupler connection device for a heavy-duty railway freight car, which is used to manufacture the above-mentioned electric coupler connection device for a heavy-duty railway freight car.

[0079] In one embodiment, the two connecting devices are respectively installed on the two couplers of a heavy-duty truck. After the electric push rod 2.1.1 is pushed out, it drives the slider to slide on the guide rail 2.1.2. At the same time, the guide pin touches the contact 3.3.1 of the gear rack mechanism 3.3. When it reaches the end of the guide rail 2.1.2, it begins to compress the spring preload device 2.1.3 and drives the trigger mechanism forward, causing the self-locking device 2.2 to switch from the open state to the locked state, ensuring that the end doors of the two connecting devices are tightly connected during vehicle operation and the air and electrical connections are unobstructed.

[0080] Working principle:

[0081] The two connecting devices are respectively arranged on the two couplers. The couplers take the domestic type 17 and type 16 couplers as an example. When the two couplers are connected, the connecting device close to the locomotive end (this end is defined as the active end, and the connecting device on the other coupler connected to it is called the driven end) is connected to the locomotive power supply. After receiving the start signal, the electric push rod 2.1.1 advances 6mm, and the guide pin component 3.2 of the active end contacts the guide plate component 3.1 of the driven end (opposite end), and starts horizontal and vertical positioning. After advancing 27mm, the positioning is completed, and then the front cover component 3.4.3 of the electrical box device 3 of the active end and the driven end begins to rotate clockwise. Turn to open, the active end push rod moves 12.56mm, the front cover 3.4.3 of the active end and the driven end is fully opened, and stops at the stop of the electrical box device 3. After that, the push rod moves 74.4mm, the front end faces of the two electrical box devices 3 at the active end and the driven end are completely fitted together, and the electric push rod advances a total of 120mm, which is offset by the sliding of the slider on the guide rail 2.1.2. The electric push rod continues to advance 30.5mm, compressing the spring in the spring preload device. During this period, the mutual self-locking of the two electrical box devices 3 is completed, and the longitudinal gap (9.5mm) after the two couplers are connected and the wear of the coupler tongue and the coupler tongue pin during operation is offset.

Claims

1. An electrical coupler connection device for a railway heavy-duty freight car, characterized in that: The invention comprises a base device (1), a push-pull mechanism (2) and an electrical box device (3) which are sequentially connected in a detachable connection manner; the overall structure formed by the base device (1), the push-pull mechanism (2) and the electrical box device (3) is detachably arranged on a vehicle coupler; and anti-loosening mechanisms are provided between the components of the base device (1), the push-pull mechanism (2) and the electrical box device (3); The base device (1) comprises a vertical elastic adjustment device (1.1), a transverse centering reset device (1.2), a bidirectional rotating shaft device (1.3) and a mounting base plate (1.4); the mounting base plate (1.4) is mounted on a coupler shoulder; the vertical elastic adjustment device (1.1), the transverse centering reset device (1.2) and the bidirectional rotating shaft device (1.3) are all detachably arranged on the base device (1); the transverse centering reset device (1.2) comprises a roller (1.2.1); the bidirectional rotating shaft device (1.3) comprises a vertical rotating shaft (1.3.1) and a transverse rotating shaft; the vertical rotating shaft (1.3.1) cooperates with the roller (1.2.1) so that the longitudinal center of the connecting device coincides with the longitudinal center of the coupler when no external force is applied; the transverse rotating shaft and the vertical elastic adjustment device (1.1) cooperate with each other to adjust so that the connecting device always remains horizontal when no external force is applied.

2. An electrical coupler connection device for a railway heavy-duty freight car according to claim 1, characterized in that the push-pull mechanism (2) comprises a push-pull device (2.1), a self-locking device (2.2) and a bracket component (2.3) which are detachably connected from bottom to top, the bracket component (2.3) being installed below the electrical box device (3), the push-pull device (2.1) being connected to the base device (1), the push-pull device (2.1) comprising a base plate, a slider, an electric push rod (2.1.1), a guide rail (2.1.2) and a spring preload device (2.1.3), the guide rail (2.1.2) is fixedly arranged on the base plate, the front end of the spring preload device (2.1.3) is fixed to the lower front of the bracket component (2.3), and the rear end is connected to the electric push rod (2.1.1), the guide rail (2.1.2) and the slider are slidably matched, and the electric push rod (2.1.1) drives the slider to move, and when the slider moves to the end of the guide rail (2.1.2), it starts to squeeze the spring preload device ( 2.1.3), the spring preload device (2.1.3) is provided with a trigger mechanism for controlling the opening and closing of the self-locking device (2.2) to achieve mechanical self-locking of the two connecting devices.

3. The electric coupler connection device for a railway heavy-duty freight car according to claim 2, characterized in that: The electrical box device (3) comprises a guide plate component (3.1), a guide pin component (3.2), a gear rack mechanism (3.3) and a box body component (3.4); the guide plate component (3.1) and the guide pin component (3.2) are both located below the box body component (3.4); the gear rack mechanism (3.3) is located inside the box body component (3.4); the box body component (3.4) comprises a cavity with an opening at one end, a front cover component (3.4.3) hingedly connected to the outside of the cavity, a positioning hole (3.4.1) and a positioning pin (3.4.2) on an integrated mounting seat for an air connector and an electrical connector, and a second rotating shaft (3.4.4) fixedly connected to the front cover component (3.4.3); the second rotating shaft (3.4.4) is movably arranged on the cavity; and the gear rack mechanism (3.3) drives the second rotating shaft (3.4.4) to rotate.

4. The electric coupler connection device for a railway heavy-duty freight car according to claim 3, characterized in that: A tension spring is provided outside the cavity, one end of the tension spring is connected to the outside of the cavity, and the other end is provided on the crank of the front cover component (3.4.3).

5. The electric coupler connection device for a railway heavy-duty freight car according to claim 3, characterized in that: The electrical box device (3) is rotationally engaged with the coupler.

6. The electric coupler connection device for a railway heavy-duty freight car according to claim 3, characterized in that: The rack and pinion mechanism (3.3) comprises a contact (3.3.1), a first rotating shaft assembly (3.3.2), and a rack and pinion assembly that drives the first rotating shaft assembly (3.3.2) to rotate; the contact (3.3.1) triggers the rack and pinion assembly to operate; the guide pin cooperates with the contact (3.3.1); a driving gear and a driving shaft are provided on the first rotating shaft assembly (3.3.2); a driven shaft that cooperates with the driving shaft is provided on the second rotating shaft (3.4.4); the driving shaft and the driven shaft are fastened with bolts; the driving gear drives the driving shaft and the driven shaft to realize the rotation of the front cover assembly (3.4.3).

7. The electric coupler connection device for a railway heavy-duty freight car according to claim 1, characterized in that: The base device (1), the push-pull mechanism (2), and the electrical box device (3) are detachably connected by bolts, and the anti-loosening mechanism is an anti-loosening plate provided at each of the bolts.

8. A method for manufacturing an electrical coupler connection device for a railway heavy-duty freight car, characterized in that: Used to manufacture the electrical coupler connection device for heavy-duty railway freight cars as described in claim 6.

9. The method for manufacturing an electrical coupler connection device for a railway heavy-duty freight car according to claim 8, characterized in that: The two connecting devices are respectively installed on the two couplers of the heavy-duty truck. After the electric push rod (2.1.1) is pushed out, it drives the slider to slide on the guide rail (2.1.2). At the same time, the guide pin touches the contact (3.3.1) of the gear rack mechanism (3.3). When it reaches the end of the guide rail (2.1.2), it begins to compress the spring preload device (2.1.3) and drives the trigger mechanism of the self-locking device forward, so that the self-locking device (2.2) changes from the open state to the locked state, ensuring that the two connecting devices are tightly combined during the operation of the vehicle and the air and electrical circuits are connected smoothly.

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