Railway and road transition car hook auxiliary installation car based on rail car

By designing a railcar-based auxiliary installation vehicle for both road and rail transition couplers, and employing liftable rail wheels and ground wheel sets, clamping mechanisms, and remote control systems, the automated handling and precise installation of transition couplers were achieved. This solved the safety and versatility issues of existing equipment and improved installation efficiency and safety.

CN224491072UActive Publication Date: 2026-07-14JINHUA RAIL TRANSIT GRP OPERATION CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JINHUA RAIL TRANSIT GRP OPERATION CO LTD
Filing Date
2025-09-26
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

The existing installation equipment for railcar transition couplers is unsafe, inefficient, and lacks versatility. It cannot flexibly adapt to complex scenarios and poses a risk of personal injury.

Method used

Design a railcar-based auxiliary installation vehicle for dual-purpose road-rail couplers. It adopts a mobile railcar chassis, liftable rail wheels and ground wheelsets, clamping mechanism, lifting mechanism and wireless remote control system to realize automated handling and precise installation of the coupler.

Benefits of technology

It improves operational safety and efficiency, reduces labor costs, solves the installation problem of tracks without trenches, enables free movement between the track and the ground and precise installation, and avoids the risk of personal injury.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224491072U_ABST
    Figure CN224491072U_ABST
Patent Text Reader

Abstract

The utility model belongs to the field of rail transit auxiliary equipment provides a kind of public transport dual-purpose transition car hook auxiliary installation car based on rail car, including car body frame, and running system, lifting mechanism, clamping mechanism and control system installed thereon. Running system includes switchable ground wheel group and track wheel group, and realizes public transport dual-purpose walking by track wheel lifting drive mechanism. Lifting mechanism drives the vertical motion of clamping mechanism, and clamping mechanism is used to grab and fix transition car hook. Control system controls the entire operation process by wireless remote control mode. The utility model realizes the automated handling and accurate installation of transition car hook from storage area to rail car, has the advantages of safe operation, high operation efficiency, strong adaptability (especially suitable for no ditch track) and the like, effectively solves the problems of high risk and low efficiency of manual handling.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to an auxiliary installation vehicle for a dual-purpose road-rail coupler based on a railcar, and more particularly to an auxiliary installation vehicle for dual-purpose road-rail couplers used for assisting in the installation and disassembly of railcar couplers within a depot. It belongs to the technical field of rail transit auxiliary equipment. Background Technology

[0002] The transition coupler for railcars is a crucial component in the on-site preparation work of urban rail transit sections. It is heavy (approximately 80 kg) and large in size (approximately 560 × 515 × 580 mm), and its storage area is usually some distance from the installation location. Currently, existing auxiliary installation vehicles for transition couplers employ three methods: first, a hydraulic lifting platform is used, requiring manual pushing and pulling of the installation vehicle on the ground; second, the transition coupler needs to be manually moved onto the hydraulic lifting platform and secured with calipers and bolts; third, the transition coupler needs to be manually pushed for installation, and then the installation height is adjusted by manually driving the hydraulic cylinder. These methods suffer from problems such as requiring repeated adjustments to align the coupler interface, and are only suitable for ground installation, lacking versatility and flexibility. Furthermore, they have the following significant drawbacks:

[0003] Poor safety: Manual handling and installation can easily lead to injuries such as crushing and sprains to operators; existing auxiliary equipment lacks an effective anti-fall-off locking mechanism, posing a safety hazard.

[0004] Low efficiency: It requires 2-3 people to work together and takes about 15 minutes, which affects the efficiency of preparation.

[0005] Insufficient versatility: Existing equipment is usually only applicable to ground or specific track conditions, and cannot flexibly adapt to complex scenarios such as tracks without trenches. It often requires the railcar to be moved to a specific position before it can operate, which is cumbersome.

[0006] Therefore, there is an urgent need for a specialized auxiliary installation device that can take into account both track and ground operation, operational safety, high efficiency, and strong adaptability. Utility Model Content

[0007] To overcome the shortcomings of existing technologies, this utility model proposes an auxiliary installation vehicle for a dual-purpose road-rail coupler based on a railcar, which can realize the automated transportation and precise installation of the coupler between the rail and the ground, effectively improving operational safety and efficiency.

[0008] To achieve the above objectives, the technical solution of this utility model is as follows:

[0009] A dual-purpose (road and rail) transition coupler auxiliary installation vehicle based on a railcar includes: a car body frame: constituting the main support structure of the auxiliary installation vehicle; and a movable railcar chassis.

[0010] The running system, installed at the bottom of the vehicle frame, includes a set of ground wheels and a set of rail wheels. The rail wheels are connected to a rail wheel lifting drive mechanism for raising and lowering, enabling the auxiliary installation vehicle to switch between rail walking mode and ground walking mode. The ground wheels travel the distance between the transition coupler storage area and the rail; the rail wheels travel the distance from the ground-rail connection point to the railcar parking area. This effectively solves the problem of transition coupler installation when the railcar is stored in a track without a trench, allowing the railcar to be installed without having to switch tracks to a trench.

[0011] Clamping mechanism: Installed at the actuator end of the lifting mechanism, used to grip and fix the transition coupler;

[0012] Lifting mechanism: Installed at the front of the vehicle frame, connected to the clamping mechanism via a pull rope, used to drive the clamping mechanism to lift vertically as a whole;

[0013] The control system integrates a wireless remote control module for receiving control commands and controlling the movement of the running system, track wheel lifting drive mechanism, lifting mechanism, and clamping mechanism. Remote control enables the vehicle to grip the coupler and precisely align and couple with the track coupler, achieving automated control installation.

[0014] The ground wheel set is a swivel caster with steering function.

[0015] The lifting mechanism includes at least one lifting hydraulic cylinder.

[0016] The clamping mechanism is equipped with a hydraulic locking valve, which is used to lock the clamping hydraulic cylinder after clamping the transition coupler to prevent accidental pressure leakage from causing the coupler to fall off.

[0017] The clamping mechanism includes a pair of openable jaws and a clamping drive component for driving the jaws to open and close.

[0018] The clamping drive component is a clamping hydraulic cylinder, which is distributed on the left and right sides of the front of the vehicle. After grabbing the transition coupler, it can be locked to prevent the transition coupler from falling off and causing injury to personnel under accidental conditions.

[0019] The track wheel lifting drive mechanism is a track wheel hydraulic cylinder. When the auxiliary installation vehicle moves onto the track, the track wheel hydraulic cylinder is lowered to ensure that the auxiliary installation vehicle runs stably on the track.

[0020] The vehicle frame is equipped with a battery to provide power to the running system, hydraulic cylinders and control system.

[0021] The shape of the gripper is adapted to the gripping part of the transition coupler to achieve adaptive gripping.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0023] This utility model relates to an auxiliary installation vehicle for a dual-purpose road-rail coupler based on a railcar.

[0024] Dual-purpose for both road and rail use, with wide adaptability: Through the liftable track wheel set and ground wheel set, the equipment can move freely on the track and the ground, effectively solving the problem of the entire transportation process from the storage area to the railcar. In particular, it overcomes the installation problem of the trackless trench, and the railcar can operate without the need to switch tracks.

[0025] High degree of automation and safe operation: Utilizing remote control, it integrates movement, lifting, and clamping functions, allowing operators to control the vehicle remotely and avoiding the risks of injury from close-range handling and coupler adjustments. The added hydraulic locking mechanism effectively prevents the coupler from accidentally detaching during handling and installation.

[0026] Significantly improved work efficiency: The manual operation that originally required 2-3 people and took about 15 minutes can be simplified to one person remote control operation to complete quickly, greatly reducing labor intensity and manpower and time costs. Moreover, the operator does not need to adjust the transition coupler at close range, solving the problem of the inability to install the transition coupler on tracks without a trench. At the same time, it avoids personal injury and fall risks during the handling and loading / unloading of the transition coupler.

[0027] Compact structure and integrated functions: The traveling, lifting, clamping and control systems are highly integrated into one vehicle body. The structure is reasonable and the movement is flexible, making it suitable for operation in limited spaces within the depot. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram (1) of the structure of an auxiliary installation vehicle for a dual-purpose road-rail coupler based on a railcar according to the present invention.

[0030] Figure 2 This is a schematic diagram (2) of the structure of an auxiliary installation vehicle for a dual-purpose road-rail coupler based on a railcar according to this utility model.

[0031] In the diagram: 1-gripper, 2-lifting hydraulic cylinder, 3-battery, 4-track wheel assembly, 5-ground wheel assembly, 6-clamping hydraulic cylinder, 7-track wheel hydraulic cylinder, 8-control system, 9-travel system. Detailed Implementation

[0032] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0033] This embodiment provides an auxiliary installation vehicle for a dual-purpose (road and rail) transition coupler based on a railcar, such as... Figure 1-2 As shown, it includes: a vehicle frame: welded from structural steel, possessing sufficient strength and rigidity, forming the main support structure of the auxiliary installation vehicle; and a movable railcar chassis.

[0034] The traveling system 9 is installed at the bottom of the vehicle frame and includes a set of ground wheelsets 5 and a set of rail wheelsets 4. The rail wheelsets 4 are connected to a rail wheel lifting drive mechanism for driving their lifting and lowering, enabling the auxiliary installation vehicle to switch between rail walking mode and ground walking mode. The ground wheels travel the distance between the transition coupler storage area and the rail; the rail wheels travel the distance from the ground and rail connection point to the railcar parking area. This effectively solves the problem of transition coupler installation when the railcar is stored in a track without a trench, allowing the railcar to be installed without having to switch to a trench track.

[0035] Clamping mechanism: Installed at the actuator end of the lifting mechanism, used to grip and fix the transition coupler;

[0036] Lifting mechanism: Installed at the front of the vehicle frame, connected to the clamping mechanism via a pull rope, with the top of its piston rod connected to the clamping mechanism, used to drive the clamping mechanism to lift vertically as a whole;

[0037] The control system 8 integrates a wireless remote control module for receiving control commands and controlling the movement of the traveling system 9, the track wheel lifting drive mechanism, the lifting mechanism, and the clamping mechanism. Remote control drives the vehicle to grab the coupler and precisely align it with the track coupler for coupling, achieving automated control installation. Operators can send commands via a handheld remote control to control the equipment's forward / reverse movement, steering, track wheel lifting, transition coupler lifting, and clamp opening and closing.

[0038] The ground wheel set 5 is a swivel caster with steering function. The lifting mechanism includes at least one lifting hydraulic cylinder 2.

[0039] The clamping mechanism is equipped with a hydraulic locking valve to lock the clamping hydraulic cylinder 6 after clamping the transition coupler, preventing accidental pressure release from causing the coupler to detach. The clamping mechanism includes a pair of openable and closable grippers 1 and a clamping drive component that drives the grippers 1 to open and close. The clamping drive component is the clamping hydraulic cylinder 6, which is distributed on the left and right sides of the front of the vehicle. After gripping the transition coupler, it can be locked to prevent accidental detachment of the transition coupler and subsequent injury to personnel. The shape of the grippers 1 is adapted to the gripping part of the transition coupler, achieving adaptive gripping.

[0040] The track wheel lifting drive mechanism is a track wheel hydraulic cylinder 7. When the auxiliary installation vehicle moves onto the track, the track wheel hydraulic cylinder 7 is lowered to ensure that the auxiliary installation vehicle runs stably on the track. A battery 3 is installed on the vehicle frame to provide power to the running system 9, each hydraulic cylinder, and the control system 8.

[0041] The working principle of this utility model is as follows:

[0042] The installation of the railcar transition coupler using an auxiliary installation vehicle mainly involves the following four key steps:

[0043] 1. Gripping the coupler: The assisted installation vehicle travels to the transition coupler storage area, and the adaptive gripper 1 adjusts according to the shape of the coupler to grip the transition coupler and lock it in place.

[0044] 2. Initial positioning: The auxiliary installation vehicle loads the transition coupler and travels to the position of the railcar coupler.

[0045] 3. Height adjustment: The lifting hydraulic cylinder 2 drives the car to lift to the target height, so that the height of the transition coupler is the same as that of the railcar coupler.

[0046] 4. Installation and fixing: After precise alignment, the device is lowered to the railcar coupler by lifting hydraulic cylinder 2 to complete the installation.

[0047] In practical use, the operator first starts the equipment via control system 8, then uses the ground wheels of the traveling system 9 to move the auxiliary installation vehicle to the transition coupler storage area. The operator adjusts the height and position of the adjustable gripper 1 at the front clamping mechanism to align it with the gripping point of the transition coupler. The opening and closing degree of gripper 1 is finely adjusted via control system 8 to ensure a stable grip. Gripper 1 is then closed to firmly grip the transition coupler, and the operator confirms that gripper 1 is locked. Once the transition coupler is stable, the lifting hydraulic cylinder 2 is operated to adjust gripper 1 and the transition coupler to an appropriate height. The track wheels of the traveling system 9 are operated to move the auxiliary installation vehicle to the track, ensuring the auxiliary installation vehicle and track are on the same axis. The track wheel set 4 is lowered onto the track, moving the auxiliary installation vehicle to the position where the transition coupler is to be installed on the railcar. The position of gripper 1 is finely adjusted (according to the position of the railcar coupler) to align the transition coupler with the railcar coupler. The height is adjusted via the hydraulic system to ensure the transition coupler is installed in place and securely connected. After confirming that the installation is correct, gripper 1 is released, completing the installation of the transition coupler. Retract jaw 1 to a safe position, lower the hydraulic cylinder, and return the auxiliary installation trolley to its initial state. The use of the dual-purpose (rail and road) transition coupler auxiliary installation trolley significantly improves the installation efficiency of the transition coupler, reduces the risks associated with manual operation, and minimizes manual handling, thus lowering labor costs. Furthermore, it effectively solves the problem of installing transition couplers on tracks without underground trenches, eliminating the need for the track vehicle to be moved to an underground trench for the installation of the transition coupler.

[0048] This utility model relates to an auxiliary installation vehicle that automates the overall installation of the transition coupler through remote-controlled vehicle drive. It employs a hydraulic lifting track wheel set 4 + ground wheel set 5, with the ground wheels having a steering function, solving the problem of transporting the transition coupler between the ground and the track. Furthermore, a hydraulic locking mechanism is added to the auxiliary installation vehicle to prevent the transition coupler from detaching and causing injury in case of accidents (such as sudden power outages). A battery 3 provides lifting power, allowing for easy manual dragging. It can stop and remain locked in either lifting or traveling direction, with a load capacity of ≥200kg. This achieves a synergy between a single-mode system and a dual-purpose road-rail wheel set, and between manual assistance and automation. Through the automated mechanical structure and intelligent control system 8, rapid and precise installation of the coupler is achieved.

[0049] The auxiliary installation vehicle for the transition coupler of the road-rail dual-purpose vehicle is characterized by the integration of multiple devices such as remote control, hydraulic liftable rail wheel set 4, ground guide wheel set, and hydraulic-mechanical double locking linkage device, so as to realize the automation and safety of the installation of the railcar transition coupler and effectively reduce labor costs.

[0050] This invention effectively solves the problem of installing transition couplers when railcars are stored on tracks without trenches, allowing the installation of transition couplers without the railcars needing to be moved to trench tracks.

[0051] This utility model is not limited to the installation of transition couplers for urban rail transit track vehicles, but can also be used to erect temporary tracks or transport rescue equipment in complex terrain.

[0052] This utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations will still fall within the protection scope of this utility model.

Claims

1. An auxiliary installation vehicle for a dual-purpose road-rail coupler based on a railcar, characterized in that: include: Vehicle frame: The main supporting structure that constitutes the auxiliary installation vehicle; The running system is installed at the bottom of the vehicle frame and includes a set of ground wheels and a set of track wheels. The track wheels are connected to a track wheel lifting drive mechanism for driving its lifting and lowering, so as to realize the switching of the auxiliary installation vehicle between track walking mode and ground walking mode. Clamping mechanism: Installed at the actuator end of the lifting mechanism, used to grip and fix the transition coupler; Lifting mechanism: Installed at the front of the vehicle frame, connected to the clamping mechanism via a pull rope, used to drive the clamping mechanism to lift vertically as a whole; The system includes a wireless remote control module for receiving control commands and controlling the movement of the traveling system, the track wheel lifting drive mechanism, the lifting mechanism, and the clamping mechanism.

2. The auxiliary installation vehicle for a dual-purpose road-rail coupler based on a railcar, as described in claim 1, is characterized in that: The ground wheel set is a swivel caster with steering function.

3. The auxiliary installation vehicle for a dual-purpose road-rail coupler based on a railcar, as described in claim 1, is characterized in that: The lifting mechanism includes at least one lifting hydraulic cylinder.

4. The auxiliary installation vehicle for a dual-purpose road-rail coupler based on a railcar, as described in claim 1, is characterized in that: The clamping mechanism includes a pair of openable jaws and a clamping drive component for driving the jaws to open and close.

5. The auxiliary installation vehicle for a dual-purpose road-rail coupler based on a railcar, as described in claim 4, is characterized in that: The clamping drive component is a clamping hydraulic cylinder, which is distributed on the left and right sides of the front end of the vehicle.

6. The auxiliary installation vehicle for a dual-purpose road-rail coupler based on a railcar as described in claim 1, characterized in that: The track wheel lifting drive mechanism is a track wheel hydraulic cylinder.

7. The auxiliary installation vehicle for a dual-purpose road-rail coupler based on a railcar as described in claim 1, characterized in that: The vehicle frame is equipped with a battery to provide power to the running system, hydraulic cylinders and control system.

8. The auxiliary installation vehicle for a dual-purpose road-rail coupler based on a railcar, as described in claim 4, is characterized in that: The shape of the gripper is adapted to the gripping part of the transition coupler to achieve adaptive gripping.