Multifunctional rail car

By adopting a high-strength aluminum alloy car body frame, dual servo motor drive, and multiple guide wheels, the problems of high cost and poor steering flexibility of traditional railcars have been solved, realizing a low-cost, multi-functional, and stable multi-functional railcar.

CN223644762UActive Publication Date: 2025-12-09TANGSHAN JIAO NAI TECH CO LTD
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Patent Information

Application Number
CN202520274043.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-20
Publication Date
2025-12-09
Estimated Expiration
2035-02-20

AI Technical Summary

Technical Problem

Traditional railcars are complex in structure, have high manufacturing costs, are difficult to maintain, and have a single mode of operation, which cannot meet the needs of complex working conditions. They also have poor turning flexibility in narrow spaces.

Method used

The vehicle features a high-strength aluminum alloy frame, dual servo motor drive, and is equipped with various guide wheels and load-bearing wheels. Combining honeycomb wheels and load-bearing rollers, it can achieve multiple operating modes. It is equipped with a multi-functional platform and adopts a fastener riveting structure to simplify assembly and maintenance.

Benefits of technology

It reduces manufacturing costs, improves turning flexibility and operational stability, adapts to various scenario requirements, expands the scope of applications, and ensures safe and reliable equipment operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a multifunctional rail car, and belongs to the technical field of rail transportation equipment. According to the technical scheme, a bearing wheel (13) is arranged between a driving wheel pressing device and a side face guide wheel (12), the side face guide wheel and the bearing wheel are both arranged on the inner side of a vehicle body frame (9), and the side face guide wheel and the bearing wheel roll on the surface of a profile steel web and the surface of a profile steel lower flange plate respectively; flange plate guide wheels (19) are symmetrically mounted at the two ends of the vehicle body frame below the profile steel lower flange plate; a battery (2) is installed on a bottom plate of the vehicle body frame, servo motors (3) are arranged on the two sides of the battery respectively, the servo motors are connected with a speed reducer (4) through couplings, and the driving wheel pressing device is arranged on an output shaft of the speed reducer, driven by the servo motors to walk on the guide rails and pressed on the guide rails. The utility model has the beneficial effects of low manufacturing cost, simple and compact structure, small turning radius, stable operation driven by double motors, convenience in disassembly and assembly, easiness in adjustment, reliable performance and wide application.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of multifunctional rail car, especially a kind of multifunctional rail car, which can run in multiple ways on H-shaped steel or I-beam guide rail, and can carry various equipment and be applied in the field of inspection, belongs to the technical field of rail transport equipment. BACKGROUND

[0002] In the scenes of industrial production, warehousing logistics, tunnel bridge detection and various facility inspection, rail car is an important work tool. However, the traditional rail car has many drawbacks. Its structure is complex, relying on customized parts, resulting in high manufacturing cost, and difficult and high-cost maintenance in the later period. At the same time, the traditional rail car has a single running mode, and most of them can only travel in a specific way on a horizontal rail, which cannot meet the complex working condition requirements such as climbing and vertical rail running. In addition, the traditional rail car has a large turning radius and is difficult to turn flexibly in a limited space. For example, when performing inspection or transportation operations in narrow tunnels or complex warehouse shelves, the limitations of the traditional rail car are particularly prominent. SUMMARY

[0003] The utility model aims to provide a kind of multifunctional rail car, manufacturing cost is low, running mode is various, turns flexibly and is convenient for maintenance, satisfies the diversified use demand under different scenes, especially can carry various equipment and be applied in the aspect of inspection, solve the problems existing in the background art.

[0004] The technical scheme of the utility model is:

[0005] A kind of multifunctional rail car, comprising a vehicle body frame, the vehicle body frame is arranged on a guide rail, the guide rail is an H-shaped structure composed of a top flange plate of a section steel, a web plate of a section steel and a lower flange plate of a section steel;The web plate of a section steel is symmetrically provided with a driving wheel pressing device on both sides, and the driving wheel pressing device is connected with the vehicle body frame;Each driving wheel pressing device is symmetrically provided with a side guide wheel on both sides, and a load bearing wheel is arranged between the driving wheel pressing device and the side guide wheel, the side guide wheel and the load bearing wheel are arranged inside the vehicle body frame, and the side guide wheel and the load bearing wheel roll on the surface of the web plate of a section steel and the lower flange plate of a section steel respectively;The flange plate guide wheels are symmetrically installed at both ends of the vehicle body frame below the lower flange plate of a section steel, and the flange plate guide wheels roll on the surface of the lower flange plate of a section steel;A battery is installed on the bottom plate of the vehicle body frame, and a servo motor is arranged on both sides of the battery, the servo motor is connected with a speed reducer through a shaft coupling, the driving wheel pressing device is arranged on the output shaft of the speed reducer, and the driving wheel pressing device is driven by the servo motor to walk on the guide rail and press on the guide rail.

[0006] The drive wheel clamping device includes a clamping arm, a compression spring, and a honeycomb wheel. The clamping arm is mounted on a clamping arm axle seat via a clamping arm pin, and the clamping arm axle seat is located on the outside of the vehicle frame. The clamping arm is equipped with a clamping shaft, and the clamping shaft is equipped with a compression spring and a compression spring cover. The honeycomb wheel is mounted on the output shaft of the reducer and moves along the guide rail under the drive of the servo motor, and is clamped onto the guide rail by the action of the compression spring.

[0007] The vehicle frame is equipped with a load-bearing axle, and load-bearing wheels and load-bearing flange sleeves are respectively provided at both ends of the load-bearing axle. The load-bearing wheels and load-bearing flange sleeves are respectively located on the inner and outer sides of the vehicle frame.

[0008] The vehicle frame is equipped with a multi-functional mounting platform. The surface of the multi-functional mounting platform is provided with an array of screw holes and a quick electrical interface, which facilitates the rapid installation of equipment such as radar, cameras and fire extinguishers according to different inspection tasks.

[0009] A self-rotating cleaning device is also installed inside the vehicle frame.

[0010] The vehicle frame has symmetrical notches on both sides of the middle section, and the drive wheel clamping device is located in the notches.

[0011] The battery is fixedly mounted on the bottom plate of the vehicle frame using U-bolts.

[0012] The clamping arm is mounted on the output shaft of the reducer via a motor mounting flange.

[0013] The load-bearing wheels are polyurethane rollers, which are riveted to the vehicle frame via roller brackets.

[0014] The guide rail is an H-beam or I-beam guide rail.

[0015] The battery, servo motor, coupling, reducer, self-rotating cleaning device, and honeycomb wheel are all devices known and commonly used in the field.

[0016] The advantages of this utility model are: low manufacturing cost, simple and compact structure, small turning radius, stable operation driven by dual motors, easy disassembly and adjustment, reliable performance, and wide range of applications. Attached Figure Description

[0017] Figure 1 This is the front view of the present utility model;

[0018] Figure 2 This is an isometric drawing of the present invention;

[0019] Figure 3 These are schematic diagrams of the present invention from various angles during operation.

[0020] In the diagram: 1. U-bolt; 2. Battery; 3. Servo motor; 4. Reducer; 5. Clamping arm; 6. Compression spring; 7. Compression spring cover; 8. Clamping shaft; 9. Car body frame; 10. Guide rail; 10. Upper flange plate of steel section; 101. Web plate of steel section; 102. Lower flange plate of steel section; 103. Self-rotating cleaning device; 11. Side guide wheel; 12. Load-bearing wheel; 13. Load-bearing flange sleeve; 14. Load-bearing shaft; 15. Clamping arm pin; 16. Clamping arm bearing; 17. Honeycomb wheel; 18. Flange plate guide wheel; 19. Multifunctional mounting platform; 20. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and examples.

[0022] A multi-functional railcar includes a car body frame 9, which is mounted on a guide rail 10. The guide rail 10 is an H-shaped structure composed of an upper steel flange 101, a steel web 102, and a steel lower flange 103. Drive wheel clamping devices are symmetrically arranged on both sides of the steel web, and these devices are connected to the car body frame 9. Side guide wheels 12 are symmetrically arranged on both sides of each drive wheel clamping device. A load-bearing wheel 13 is positioned between the drive wheel clamping device and the side guide wheel 12. Both the side guide wheels 12 and the load-bearing wheel 13 are mounted on the car body frame 9. On the inner side, the side guide wheel 12 and the load-bearing wheel 13 roll on the surface of the web plate and the lower flange plate of the steel profile, respectively; the two ends of the car body frame 9 below the lower flange plate of the steel profile are symmetrically equipped with flange plate guide wheels 19, which roll on the surface of the lower flange plate of the steel profile; the battery 2 is installed on the bottom plate of the car body frame 9, and servo motors 3 are respectively set on both sides of the battery 2. The servo motors 3 are connected to the reducer 4 through a coupling. The drive wheel pressing device is set on the output shaft of the reducer 4, and is driven by the servo motor 3 to walk on the guide rail and press against the guide rail.

[0023] The drive wheel clamping device includes a clamping arm 5, a compression spring 6, and a honeycomb wheel 18. The clamping arm 5 is mounted on a clamping arm bearing 17 via a clamping arm pin 16. The clamping arm bearing 17 is located on the outside of the vehicle frame 9. The clamping arm 5 is provided with a clamping shaft 8, and the clamping shaft 8 is provided with a compression spring 6 and a compression spring cover 7. The honeycomb wheel 18 is located on the output shaft of the reducer 4 and moves along the guide rail under the drive of the servo motor 3, and is clamped onto the guide rail by the action of the compression spring.

[0024] The vehicle frame 9 is provided with a load-bearing axle 15, and load-bearing wheels 13 and load-bearing flange sleeves 14 are respectively provided at both ends of the load-bearing axle 15. The load-bearing wheels 13 and load-bearing flange sleeves 14 are respectively located on the inner and outer sides of the vehicle frame 9.

[0025] A multi-functional mounting platform 20 is provided on the upper part of the vehicle frame 9. The surface of the multi-functional mounting platform 20 is provided with a screw hole array and a quick electrical interface, which facilitates the quick installation of equipment such as radar, camera and fire extinguisher according to different inspection tasks.

[0026] The inner side of the vehicle frame 9 is also equipped with a self-rotating cleaning device 11, which can clean the guide rail.

[0027] The vehicle frame 9 has symmetrical notches on both sides of the middle section, and the drive wheel clamping device is installed in the notches.

[0028] The battery 2 is fixedly mounted on the bottom plate of the vehicle frame 9 by U-bolts 1.

[0029] The clamping arm 5 is mounted on the output shaft of the reducer 4 via a motor mounting flange.

[0030] The load-bearing wheel 13 is a polyurethane roller, which is riveted to the vehicle frame 9 through a roller bracket.

[0031] The guide rail 10 is an H-beam or I-beam guide rail.

[0032] In this embodiment, there are 2 honeycomb wheels 18, 4 side guide wheels 12, 2 flange guide wheels 19, 4 load-bearing wheels 13, 2 servo motors 3, 2 reducers 4, and 1 battery 2. The two honeycomb wheels 18 are respectively arranged on both sides of the steel web 102, and each side of the steel web 102 is provided with 2 side guide wheels 12 and 2 load-bearing wheels 13. The two servo motors 3 are respectively arranged on both sides of the battery 2.

[0033] The vehicle body frame is made of high-strength aluminum alloy and is riveted together with fasteners. This connection method makes the vehicle body frame easy to assemble and disassemble, facilitating transportation and subsequent maintenance. At the same time, the frame design fully considers the installation position and stress conditions of each component, resulting in a compact and reasonable structure that effectively reduces the weight of the vehicle body while ensuring overall strength.

[0034] This invention employs a dual-servo motor drive mode, utilizing two high-performance brushless DC servo motors and a planetary gearbox. Each brushless DC servo motor is connected to the planetary gearbox via a coupling. The planetary gearbox features small size, large transmission ratio, and high efficiency. The gearbox output shaft directly drives the corresponding honeycomb wheel. The dual-motor drive system can automatically adjust torque output according to different operating conditions, such as climbing, turning, and driving on flat roads, ensuring smooth operation of the guide rail vehicle.

[0035] Symmetrical drive wheel clamping devices are installed on both sides of the steel web of the guide rail. By tightening the bolts to compress the springs, the pressure can be increased, thereby increasing the friction between the honeycomb wheels and the steel web of the guide rail. When the guide rail vehicle needs to climb slopes, especially 90-degree vertical slopes, this ensures that the vehicle remains stable and does not slip during the climbing process.

[0036] Side guide wheels 12 are installed on both sides of the web of the steel profile of the guide rail to provide lateral restraint to the guide rail vehicle from both sides of the web, ensuring that the vehicle does not deviate laterally during operation. Flange guide wheels 19 are arranged below the lower flange of the steel profile to guide the guide rail vehicle vertically, further enhancing the stability of the vehicle during operation, especially on steep slopes, effectively reducing vehicle bumps and jumps. The multi-directional guide wheel arrangement allows the guide rail vehicle to be constrained and guided from all directions during operation, greatly improving the smoothness of operation. Whether traveling in a straight line or turning, there is no significant swaying. Especially in turning conditions, through the cooperation between the various guide wheels, it can accurately follow the curvature changes of the guide rail, maintaining smooth vehicle steering and effectively avoiding problems such as tilting and swaying caused by turning, providing a safer and more stable environment for equipment transportation.

[0037] This invention enables automatic and smooth transition from suspended mode to riding mode. A specialized load-bearing roller structure is designed to meet the requirements of operation suspended below the guide rail. The load-bearing rollers are connected to the vehicle frame with high-strength bolts, ensuring a secure connection. The load-bearing rollers utilize deep groove ball bearings, with specially designed wear-resistant rubber rollers connected to the bearings. The rubber rollers have anti-slip patterns on their surface, allowing them to roll smoothly on the surface of the steel flange, providing reliable support for movement. When the guide rail vehicle needs to ride on the steel profile, the flange guide wheel 19 assumes a load-bearing role. The load-bearing rollers are a set of polyurethane rollers, riveted to the vehicle frame via roller brackets, ensuring flexible rotation. This conversion function allows the guide rail vehicle to adapt to different track layouts and working scenarios, greatly expanding its application range. For example, in situations requiring traversing different spatial structures or changing track configurations, the guide rail vehicle can flexibly switch operating modes to continue operating efficiently and stably without needing to replace the vehicle or perform complex track modifications.

[0038] An open multi-functional mounting platform 20 is installed above the vehicle frame 9. The surface of the multi-functional mounting platform 20 is equipped with a standard array of screw holes and quick electrical interfaces, which facilitates the rapid installation of equipment such as radar, cameras, and fire extinguishers according to different inspection tasks. If necessary, a multi-layer shock absorption device, including rubber shock-absorbing pads and spring shock absorbers, can be installed at the bottom of the multi-functional mounting platform 20 to effectively reduce the impact of vibrations generated during vehicle movement on the mounted equipment, ensuring the normal operation of the equipment and the accuracy of the test data.

[0039] The assembly process of this utility model is as follows: First, the high-strength aluminum alloy vehicle frame 9 components are surface treated to remove burrs and blunt sharp angles; fasteners are used to rivet and assemble the various components of the vehicle frame to ensure that each connection is firm and reliable, and the frame is finely adjusted according to actual needs; two DC brushless servo motors are precisely installed with their corresponding planetary reducers, and then the honeycomb wheel 18 is fixed on the reducer output shaft for assembly and standby; the clamping arm bearing 17 is bolted to the vehicle frame 9, then the clamping arm pin 16 is installed, and finally the clamping arm 5 is installed; the motor mounting flange is installed at the clamping arm 5 mounting position, and the clamping force is adjusted by the compression spring 6; the four load-bearing wheels 13, the load-bearing flange sleeve 14, and the load-bearing shaft 15 are respectively... The components are assembled and then installed on the vehicle frame 9. Flange guide wheels 19 are symmetrically installed at both ends of the bottom of the vehicle body, with adjusting shims added if necessary to adjust the distance between the flange guide wheels and the lower flange of the steel profile. Side guide wheels 12 of the steel web are installed, and the distance between the side guide wheels and the guide rail steel web is adjusted using shims. The battery 2 is installed on the bottom plate of the vehicle frame 9 and secured with U-bolts 1. The self-rotating sweeping device 11 is installed on the vehicle frame. Depending on the application, a corresponding multi-functional mounting platform 20 is installed above the vehicle body, with a protective cover and multi-layer shock absorption device installed if necessary. Then, according to the actual inspection task requirements, equipment such as radar, cameras, and fire extinguishers are installed through standard screw holes and quick electrical interfaces, and the relevant electrical and data transmission lines are connected.

[0040] The operation process of this utility model is as follows: Before the guide rail vehicle is put into operation, the operator needs to conduct a comprehensive inspection of the vehicle, including whether the connections of each component of the vehicle frame 9 are firm, whether the honeycomb wheels 18 of the walking mechanism rotate flexibly, whether the guide wheels (side guide wheels and flange guide wheels) are free and flexible, whether the self-rotating cleaning device 11 can rotate normally with the vehicle body, and whether the mounted equipment is installed stably and can work normally. After confirming that everything is correct, the power is turned on, and commands are sent through the remote control or remote control system. The dual-motor drive system adjusts the speed and torque according to the commands to realize the forward and backward movements of the guide rail vehicle.

[0041] Maintenance and upkeep of this utility model: Regular comprehensive maintenance of the guide rail vehicle is performed to ensure its performance and reliability. Specifically, this includes: checking whether all fasteners on the vehicle frame 9 are loose, and tightening them promptly if any are found; checking the vehicle frame 9 for deformation, cracks, or other damage, and repairing or replacing it if necessary; checking the wear of the honeycomb wheels 18 of the traveling mechanism, and replacing them promptly if the wear exceeds the specified limit; checking the lubrication of each roller bearing, adding lubricating oil regularly to ensure smooth bearing rotation; and checking the tension of the compression spring 6, adjusting or replacing it if necessary. Through regular maintenance, potential problems can be identified and resolved promptly, extending the service life of the guide rail vehicle and ensuring it is always in good operating condition.

[0042] The innovative points of this utility model are:

[0043] 1. Low cost: This utility model extensively utilizes standard equipment and components readily available online, such as DC brushless motors, bearings, and rollers, eliminating the need for customized special parts and reducing procurement costs. Simultaneously, the vehicle body frame employs fastener riveting, reducing complex processes such as welding and further lowering manufacturing costs.

[0044] 2. Simple and compact structure: The overall structure is simple and the layout of each component is compact and reasonable, which reduces unnecessary space occupation. This allows the guide rail vehicle to have a small size while ensuring the integrity of its functions, making it easy to operate in narrow spaces.

[0045] 3. Small turning radius: A pair of drive wheels (honeycomb wheels) with a symmetrical design on both sides enable the guide car to achieve a very small turning radius, providing high flexibility in narrow environments and easily handling complex track layouts;

[0046] 4. Dual servo motor drive for smooth operation: The dual motor drive system can automatically adjust the power output according to the working conditions, ensuring smooth operation under different slopes, speeds and loads, thus improving driving stability and reliability.

[0047] 5. Easy to assemble and disassemble, and easy to adjust: The vehicle body frame is riveted with fasteners, allowing for easy disassembly and installation when maintenance or parts replacement is needed, facilitating transportation and subsequent maintenance. At the same time, this connection method allows for fine-tuning of the vehicle body frame's dimensions and structure to adapt to different usage requirements;

[0048] 6. Reliable performance: Mature components and dual-motor drive are selected. After rigorous design calculations and test verification, the guide rail vehicle can operate stably under various complex working conditions, reducing the probability of failure.

[0049] 7. Wide range of applications: It can be suspended or ridden on steel guide rails according to needs, can climb rails with various slopes, and carry a variety of equipment. It is widely used in industrial plant inspection, warehousing and logistics, tunnel and bridge inspection, fire emergency and other fields.

[0050] This utility model effectively solves many problems existing in traditional railcars through innovative design and reasonable component selection, and has significant technical advantages and broad application prospects.

Claims

1. A multi-functional railcar, characterized in that: The vehicle includes a body frame (9), which is mounted on a guide rail (10). The guide rail (10) is an H-shaped structure composed of an upper flange plate (101) of steel profile, a web plate (102) of steel profile, and a lower flange plate (103) of steel profile. Drive wheel clamping devices are symmetrically arranged on both sides of the steel web plate, and the drive wheel clamping devices are connected to the body frame (9). Side guide wheels (12) are symmetrically arranged on both sides of each drive wheel clamping device. A load-bearing wheel (13) is arranged between the drive wheel clamping device and the side guide wheel (12). Both the side guide wheel (12) and the load-bearing wheel (13) are located inside the body frame (9). The guide wheel (12) and the load-bearing wheel (13) roll on the surface of the web plate and the lower flange plate of the steel section respectively; the flange plate guide wheel (19) is symmetrically installed at both ends of the car body frame (9) below the lower flange plate of the steel section, and the flange plate guide wheel (19) rolls on the surface of the lower flange plate of the steel section; the battery (2) is installed on the bottom plate of the car body frame (9), and the servo motor (3) is set on both sides of the battery (2). The servo motor (3) is connected to the reducer (4) through the coupling. The drive wheel pressing device is set on the output shaft of the reducer (4), and is driven by the servo motor (3) to walk on the guide rail and press against the guide rail.

2. The multi-functional railcar according to claim 1, characterized in that: The drive wheel clamping device includes a clamping arm (5), a compression spring (6) and a honeycomb wheel (18). The clamping arm (5) is mounted on the clamping arm axle seat (17) via a clamping arm pin (16). The clamping arm axle seat (17) is located on the outside of the vehicle frame (9). The clamping arm (5) is provided with a clamping shaft (8), and the clamping shaft (8) is provided with a compression spring (6) and a compression spring cover (7). The honeycomb wheel (18) is located on the output shaft of the reducer (4) and moves along the guide rail under the drive of the servo motor (3). It is clamped on the guide rail by the action of the compression spring.

3. A multi-functional railcar according to claim 1 or 2, characterized in that: The vehicle frame (9) is provided with a load-bearing axle (15), and load-bearing wheels (13) and load-bearing flange sleeves (14) are respectively provided at both ends of the load-bearing axle (15). The load-bearing wheels (13) and load-bearing flange sleeves (14) are respectively located on the inner and outer sides of the vehicle frame (9).

4. A multi-functional railcar according to claim 1 or 2, characterized in that: A multi-functional mounting platform (20) is provided above the vehicle frame (9).

5. A multi-functional railcar according to claim 1 or 2, characterized in that: The inner side of the vehicle frame (9) is also provided with a self-rotating cleaning device (11).

6. A multi-functional railcar according to claim 1 or 2, characterized in that: The vehicle frame (9) has symmetrical notches on both sides of the middle section, and the drive wheel clamping device is set in the notch.

7. A multi-functional railcar according to claim 1 or 2, characterized in that: The battery (2) is fixedly mounted on the bottom plate of the vehicle frame (9) by U-bolts (1).

8. A multi-functional railcar according to claim 2, characterized in that: The clamping arm (5) is mounted on the output shaft of the reducer (4) via a motor mounting flange.

9. A multi-functional railcar according to claim 1 or 2, characterized in that: The load-bearing wheel (13) is a polyurethane roller, which is riveted to the vehicle frame (9) through a roller bracket.