Ultra-short anti-explosion highway-railway dual-purpose tractor

By designing ground wheel and rail wheel mechanisms, and utilizing servo motors and hydraulic telescopic rods, the tractor can freely switch between the ground and rails, solving the flexibility and adaptability issues of traditional tractors in complex environments, and improving the stability and ease of maintenance of the equipment.

CN224240770UActive Publication Date: 2026-05-15QINGDAO SIJI EQUIP PROJECT
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINGDAO SIJI EQUIP PROJECT
Filing Date
2025-08-04
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

Traditional tractor units cannot flexibly switch between ground and rail, lack versatility and adaptability, and are difficult to adapt to complex or changing operating environments.

Method used

Design an ultra-low explosion-proof dual-purpose road-rail tractor, which is equipped with a ground wheel mechanism and a rail wheel mechanism. It uses a servo motor and a hydraulic telescopic rod to achieve free switching between the ground and the rail. Through the integrated design of the ground and the rail, it can quickly switch and improve the flexibility of operation.

Benefits of technology

It improves the flexibility and adaptability of the tractor unit between the ground and the track, saves parking and dispatching time, has a simple structure, is easy to install, improves the stability and ease of maintenance of the equipment, and reduces maintenance costs.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224240770U_ABST
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Abstract

The utility model relates to the technical field of tractors, and discloses an ultra-short anti-explosion highway-railway dual-purpose tractor which comprises a chassis, a plurality of ground wheel mechanisms are arranged on the lower surface of the chassis, each ground wheel mechanism comprises a steering groove, and a fixing seat is fixedly connected to the center of the inner top face of each steering groove. A fluted disc is fixedly connected to the lower surface of the fixing base, a rotating disc is rotationally connected to the middle of the lower surface of the fluted disc, and a steering motor is fixedly connected to one side of the lower surface of the rotating disc. The tractor is provided with the ground wheel mechanism and the track wheel mechanism, the ground wheel mechanism can move on the ground under the driving of the servo motor and is matched with the steering motor to adjust the advancing angle of the ground wheel, and under the action of the first hydraulic telescopic rod, the track wheel is attached to the advancing track; therefore, the tractor can be freely switched between the ground and the track, and the flexibility and adaptability of operation are improved.
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Description

Technical Field

[0001] This utility model relates to the field of tractor technology, and in particular to an ultra-low explosion-proof dual-purpose road and rail tractor. Background Technology

[0002] A tractor unit is a specialized transport vehicle used for pulling bodies or equipment, widely used in railways, roads, industry, logistics, and other fields. Depending on its purpose and design, tractor units can be divided into various types, including railway tractor units, road tractor units, and industrial tractor units. Its main function is to provide power and tow other vehicles, goods, or equipment, ensuring stable and safe transportation.

[0003] However, most traditional tractor units cannot flexibly switch between ground and rail, are only suitable for specific environments, lack versatility and adaptability, are limited by a single operating mode, and are difficult to adapt to complex or changing operating environments.

[0004] Therefore, those skilled in the art have provided an ultra-low explosion-proof dual-purpose road and rail tractor to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing an ultra-low explosion-proof dual-purpose road-rail tractor. This tractor is equipped with a ground wheel mechanism and a rail wheel mechanism. The ground wheel mechanism can move on the ground under the drive of a servo motor. In conjunction with a steering motor, the travel angle of the ground wheels can be adjusted. Under the action of a first hydraulic telescopic rod, the rail wheels are brought into contact with the travel rail, thereby enabling the tractor to switch freely between the ground and the rail. This improves the flexibility and adaptability of the operation, adapts to complex working environments, and achieves rapid switching through the integrated design of the ground and rail, saving stopping and dispatching time.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] An ultra-low explosion-proof dual-purpose road-rail tractor includes a chassis. Multiple ground wheel mechanisms are provided on the lower surface of the chassis. Each ground wheel mechanism includes a steering groove. A fixed seat is fixedly connected to the center of the top surface of the steering groove. A geared disc is fixedly connected to the lower surface of the fixed seat. A rotating disk is rotatably connected to the middle of the lower surface of the geared disc. A steering motor is fixedly connected to one side of the lower surface of the rotating disk. A drive gear is fixedly connected to the output end of the steering motor. A wheel seat is fixedly connected to the middle of the lower surface of the rotating disk. A ground wheel is rotatably connected to the inner wall of the wheel seat.

[0008] The front and rear ends of the upper surface of the chassis are provided with a track wheel mechanism. The track wheel mechanism includes an axle and a storage slot. The rear ends of both sides of the middle of the outer wall of the axle are fixedly connected to a support frame. Both sides of the middle of the outer wall of the axle are rotatably connected to a rotating ring. The outer wall of the rotating ring is fixedly connected to a first hydraulic telescopic rod. The outer walls of both sides of the axle are rotatably connected to a track wheel.

[0009] The outer wall of the front end of the chassis is provided with a connecting mechanism, which includes a connecting seat. A placement groove is opened in the middle of the outer wall of the front end of the connecting seat. A second hydraulic telescopic rod is fixedly connected to the center of the bottom surface of the placement groove. A connecting block is slidably connected to the inner wall of the placement groove. A connecting rod is fixedly connected to the middle of the outer wall of the front end of the connecting block. A connecting piece is fixedly connected to the outer wall of the front end of the connecting rod.

[0010] Compared with most traditional tractor units, this tractor unit has a simpler structure and is easier to install and use. The simple structure reduces the possibility of damage to the tractor unit, improves the stability and reliability of the equipment, and enhances the convenience of maintenance. As a result, operation and maintenance are more convenient and faster, and maintenance costs are lower.

[0011] Furthermore, the steering grooves are respectively opened at the four corners of the lower surface of the chassis, and the drive gear meshes with the gear disk;

[0012] The above technical solution enables the steering motor to control the rotation angle of the ground wheel through gear meshing.

[0013] Furthermore, a servo motor is fixedly connected to the middle of one side of the outer wall of the wheel seat, and the output end of the servo motor passes through the wheel seat and is fixedly connected to the ground wheel.

[0014] The above technical solution enables the servo motor to control the ground wheels for driving, thereby driving the chassis.

[0015] Furthermore, the axle is hinged to the front and rear ends of the chassis under surface, respectively, and the end of the support frame away from the axle is hinged to a hinge seat, which is fixedly connected to the chassis.

[0016] The above technical solution enables the axle to be hinged to the chassis via a support frame, allowing the axle to be folded and stored inside the chassis.

[0017] Furthermore, the end of the first hydraulic telescopic rod away from the rotating ring is hinged to the chassis, and the storage slots are respectively opened at the front end and rear end of the middle of the lower surface of the chassis;

[0018] The above technical solution enables the first hydraulic telescopic rod to control the axle to be folded and fitted with the track.

[0019] Furthermore, the connecting seat is fixedly connected to the center of the outer wall of the front end of the chassis, and a storage groove is provided in the middle of the lower surface of the connecting block. The output end of the second hydraulic telescopic rod is fixedly connected to the top surface of the storage groove.

[0020] The above technical solution enables the second hydraulic telescopic rod to control the height adjustment of the connecting block, thereby adjusting the height of the connecting component.

[0021] Furthermore, guide grooves are provided in the middle of the inner walls on both sides of the placement groove, and guide sliders are fixedly connected to the outer walls on both sides of the connecting block.

[0022] The above technical solution allows the height of the connecting block to be adjusted by the guide slider sliding within the guide groove.

[0023] Furthermore, a vehicle body plate is fixedly connected to the upper surface of the chassis, a control cabinet is fixedly connected to the middle of one side of the outer wall of the chassis, and a hydraulic module is fixedly connected to the middle of the other side of the outer wall of the chassis.

[0024] The above technical solution enables users to control the tractor through the control cabinet, and the energy storage module installed in the control cabinet can provide power to the tractor, while the hydraulic module can provide power to the hydraulic telescopic boom.

[0025] This utility model has the following beneficial effects:

[0026] 1. This utility model proposes an ultra-low explosion-proof dual-purpose road and rail tractor. Compared with most traditional tractors, this tractor is equipped with a ground wheel mechanism and a rail wheel mechanism. The ground wheel mechanism can move on the ground under the drive of a servo motor. In conjunction with the steering motor, it can adjust the travel angle of the ground wheels. Under the action of the first hydraulic telescopic rod, the rail wheels are made to fit with the travel rail, so that the tractor can switch freely between the ground and the rail, thereby improving the flexibility and adaptability of the operation and adapting to complex working environments. Through the integrated design of the ground and the rail, rapid switching is achieved, saving parking and scheduling time.

[0027] 2. The present invention proposes an ultra-low explosion-proof dual-purpose road and rail tractor. Compared with most traditional tractors, the tractor has a simple structure and is easy to install and use. The simple structure reduces the possibility of damage to the tractor, improves the stability and reliability of the equipment, and also enhances the convenience of maintenance, thus making operation and maintenance more convenient and faster, and reducing maintenance costs. Attached Figure Description

[0028] Figure 1 This is a structural schematic diagram of an ultra-low explosion-proof dual-purpose road and rail tractor proposed in this utility model;

[0029] Figure 2 This is a schematic diagram of the chassis structure of an ultra-low explosion-proof dual-purpose road and rail tractor proposed in this utility model;

[0030] Figure 3 This is a schematic diagram of the track wheel mechanism of an ultra-low explosion-proof dual-purpose road and rail traction vehicle proposed in this utility model.

[0031] Figure 4 This is a schematic diagram of the connection mechanism structure of an ultra-short explosion-proof dual-purpose road and rail tractor proposed in this utility model;

[0032] Figure 5 This is a schematic diagram of the ground wheel mechanism of an ultra-short explosion-proof dual-purpose road-rail tractor proposed in this utility model.

[0033] Legend:

[0034] 1. Chassis;

[0035] 2. Ground wheel mechanism; 201. Steering groove; 202. Fixed seat; 203. Gear plate; 204. Rotating plate; 205. Steering motor; 206. Drive gear; 207. Wheel seat; 208. Servo motor; 209. Ground wheel;

[0036] 3. Track wheel mechanism; 301. Axle; 302. Support frame; 303. Hinge seat; 304. Rotating ring; 305. First hydraulic telescopic rod; 306. Track wheel; 307. Storage slot;

[0037] 4. Connecting mechanism; 401. Connecting seat; 402. Placement slot; 403. Guide slide; 404. Second hydraulic telescopic rod; 405. Connecting block; 406. Guide slider; 407. Storage slot; 408. Connecting rod; 409. Connecting piece;

[0038] 5. Body panel; 6. Control cabinet; 7. Hydraulic module. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0040] One embodiment of this utility model is provided:

[0041] Reference Figure 1 , 23. A super-low explosion-proof dual-purpose road-rail tractor includes a chassis 1. Multiple ground wheel mechanisms 2 are provided on the lower surface of the chassis 1. Each ground wheel mechanism 2 includes a steering groove 201. A fixed seat 202 is fixedly connected to the center of the top surface of the steering groove 201. A gear 203 is fixedly connected to the lower surface of the fixed seat 202. A rotating disk 204 is rotatably connected to the middle of the lower surface of the gear 203. A steering motor 205 is fixedly connected to one side of the lower surface of the rotating disk 204. A drive gear 206 is fixedly connected to the output end of the steering motor 205. The rotating disk 204... A wheel seat 207 is fixedly connected to the middle of the surface. A ground wheel 209 is rotatably connected to the inner wall of the wheel seat 207. A track wheel mechanism 3 is provided at both the front and rear ends of the upper surface of the chassis 1. The track wheel mechanism 3 includes an axle 301 and a storage slot 307. A support frame 302 is fixedly connected to the rear ends of both sides of the middle of the outer wall of the axle 301. A rotating ring 304 is rotatably connected to both sides of the middle of the outer wall of the axle 301. A first hydraulic telescopic rod 305 is fixedly connected to the outer wall of the rotating ring 304. Track wheels 306 are rotatably connected to the outer walls of both sides of the axle 301.

[0042] A connecting mechanism 4 is provided on the outer wall of the front end of the chassis 1. The connecting mechanism 4 includes a connecting seat 401. A placement groove 402 is opened in the middle of the outer wall of the front end of the connecting seat 401. A second hydraulic telescopic rod 404 is fixedly connected to the center of the bottom surface of the placement groove 402. A connecting block 405 is slidably connected to the inner wall of the placement groove 402. A connecting rod 408 is fixedly connected to the middle of the outer wall of the front end of the connecting block 405. A connecting piece 409 is fixedly connected to the outer wall of the front end of the connecting rod 408. Compared with most traditional tractor vehicles, this tractor vehicle has a simple structure and is easy to install and use. The simple structure reduces the possibility of damage to the tractor vehicle, improves the stability and reliability of the equipment, and also improves the convenience of maintenance of the tractor vehicle, thus making operation and maintenance more convenient and faster, and reducing maintenance costs.

[0043] Reference Figure 2 , 3 5. Steering grooves 201 are respectively opened at the four corners of the lower surface of chassis 1. The drive gear 206 meshes with the gear disk 203, so that the steering motor 205 can control the ground wheel 209 to rotate through the gear meshing. A servo motor 208 is fixedly connected to the middle of the outer wall of one side of the wheel seat 207. The output end of the servo motor 208 passes through the wheel seat 207 and is fixedly connected to the ground wheel 209, so that the servo motor 208 can control the ground wheel 209 to drive the chassis 1.

[0044] Reference Figure 2 , 3The axle 301 is hinged to the front and rear ends of the lower surface of the chassis 1. The support frame 302 is hinged to the end away from the axle 301 with a hinge seat 303. The hinge seat 303 is fixedly connected to the chassis 1, so that the axle 301 can be hinged to the chassis 1 through the support frame 302, so that the axle 301 can be folded and stored in the chassis 1. The end of the first hydraulic telescopic rod 305 away from the rotating ring 304 is hinged to the chassis 1. The storage slots 307 are respectively opened at the front and rear ends of the middle of the lower surface of the chassis 1, so that the first hydraulic telescopic rod 305 can control the axle 301 to be stored, folded and fit with the track.

[0045] Reference Figure 1 , 3 4. The connecting seat 401 is fixedly connected to the center of the outer wall of the front end of the chassis 1. A storage groove 407 is provided in the middle of the lower surface of the connecting block 405. The output end of the second hydraulic telescopic rod 404 is fixedly connected to the inner top surface of the storage groove 407, so that the second hydraulic telescopic rod 404 can control the height adjustment of the connecting block 405, thereby adjusting the height of the connecting piece 409. Guide grooves 403 are provided in the middle of the inner walls on both sides of the placement groove 402. Guide sliders 406 are fixedly connected to the outer walls on both sides of the connecting block 405. The height of the connecting block 405 can be adjusted by the guide sliders 406 sliding in the guide grooves 403.

[0046] Reference Figure 1 , 2 A vehicle body plate 5 is fixedly connected to the upper surface of the chassis 1. A control cabinet 6 is fixedly connected to the middle of one side of the outer wall of the chassis 1. A hydraulic module 7 is fixedly connected to the middle of the other side of the outer wall of the chassis 1, so that the user can operate the tractor through the control cabinet 6. The energy storage module installed in the control cabinet 6 can provide power to the tractor, and the hydraulic module 7 can provide power to the hydraulic telescopic rod.

[0047] Working principle: First, the ground wheel mechanism 2 consists of four sets of horizontal explosion-proof idler wheels set at the four corners of the chassis 1. Each idler wheel is equipped with a servo motor 208 (permanent magnet synchronous servo drive motor) with an electromagnetic brake at the end, and a steering motor 205 (permanent magnet synchronous servo steering motor) with an electromagnetic brake at the end. The position is precisely controlled by the absolute encoder in the control cabinet 6 to ensure the absolute safety of railway mode operation. The hydraulic module 7 set inside the chassis 1 provides power to the first hydraulic telescopic rod 305 to complete the contact between the track wheel 306 and the track, thereby completing the conversion of the travel mode.

[0048] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An ultra-low explosion-proof dual-purpose road-rail tractor, comprising a chassis, characterized in that: The lower surface of the chassis is provided with multiple ground wheel mechanisms. Each ground wheel mechanism includes a steering groove. A fixed seat is fixedly connected to the center of the top surface of the steering groove. A gear plate is fixedly connected to the lower surface of the fixed seat. A rotating disk is rotatably connected to the middle of the lower surface of the gear plate. A steering motor is fixedly connected to one side of the lower surface of the rotating disk. A drive gear is fixedly connected to the output end of the steering motor. A wheel seat is fixedly connected to the middle of the lower surface of the rotating disk. A ground wheel is rotatably connected to the inner wall of the wheel seat. The front and rear ends of the upper surface of the chassis are provided with a track wheel mechanism. The track wheel mechanism includes an axle and a storage slot. The rear ends of both sides of the middle of the outer wall of the axle are fixedly connected to a support frame. Both sides of the middle of the outer wall of the axle are rotatably connected to a rotating ring. The outer wall of the rotating ring is fixedly connected to a first hydraulic telescopic rod. The outer walls of both sides of the axle are rotatably connected to a track wheel. The outer wall of the front end of the chassis is provided with a connecting mechanism, which includes a connecting seat. A placement groove is opened in the middle of the outer wall of the front end of the connecting seat. A second hydraulic telescopic rod is fixedly connected to the center of the bottom surface of the placement groove. A connecting block is slidably connected to the inner wall of the placement groove. A connecting rod is fixedly connected to the middle of the outer wall of the front end of the connecting block. A connecting piece is fixedly connected to the outer wall of the front end of the connecting rod.

2. The ultra-low explosion-proof dual-purpose road-rail tractor according to claim 1, characterized in that: The steering grooves are respectively opened at the four corners of the lower surface of the chassis, and the drive gear meshes with the gear plate.

3. The ultra-low explosion-proof dual-purpose road-rail tractor according to claim 1, characterized in that: A servo motor is fixedly connected to the middle of one side of the outer wall of the wheel seat, and the output end of the servo motor passes through the wheel seat and is fixedly connected to the ground wheel.

4. The ultra-low explosion-proof dual-purpose road-rail tractor according to claim 1, characterized in that: The axle is hinged to the front and rear ends of the chassis under the lower surface, respectively. The support frame is hinged to a hinge seat at the end away from the axle, and the hinge seat is fixedly connected to the chassis.

5. The ultra-low explosion-proof dual-purpose road-rail tractor according to claim 1, characterized in that: The end of the first hydraulic telescopic rod away from the rotating ring is hinged to the chassis, and the storage slots are respectively opened at the front end and the rear end of the middle of the lower surface of the chassis.

6. The ultra-low explosion-proof dual-purpose road-rail tractor according to claim 1, characterized in that: The connecting seat is fixedly connected to the center of the outer wall of the front end of the chassis. A storage groove is provided in the middle of the lower surface of the connecting block. The output end of the second hydraulic telescopic rod is fixedly connected to the top surface of the storage groove.

7. The ultra-low explosion-proof dual-purpose road-rail tractor according to claim 1, characterized in that: Guide grooves are provided in the middle of the inner walls on both sides of the placement groove, and guide sliders are fixedly connected to the outer walls on both sides of the connecting block.

8. The ultra-low explosion-proof dual-purpose road-rail tractor according to claim 1, characterized in that: A vehicle body panel is fixedly connected to the upper surface of the chassis, a control cabinet is fixedly connected to the middle of one side of the outer wall of the chassis, and a hydraulic module is fixedly connected to the middle of the other side of the outer wall of the chassis.