A transport vehicle

Abstract

The application provides a transport vehicle, characterized in that comprising a vehicle body, a sliding mechanism arranged on the vehicle body and comprising a first sliding mechanism and a second sliding mechanism, a transmission mechanism slidably connected with the sliding mechanism and used for transmitting a target workpiece, and a power mechanism connected with the sliding mechanism and the transmission mechanism and used for providing power for the sliding mechanism and the transmission mechanism, wherein the transmission mechanism is configured to be guided and matched with the first sliding mechanism, to move in a first direction and transmit the target workpiece to a first position, and to be guided and matched with the second sliding mechanism, to move in a second direction and transmit the target workpiece to a second position.

Description

Technical Field

[0001] This application relates to the field of maintenance and repair technology for rail transit equipment, and in particular to a transport vehicle. Background Technology

[0002] Within railway stations and maintenance bases, heavy components such as wheelsets, bogies, and rail fasteners often need to be frequently transferred between multiple tracks and different work stations. Traditional methods rely on rail cranes or manually pushed flatcars. Rail cranes require space above the tracks, and the line must be closed during operation, affecting normal train passage. Manual flatcars have a fixed direction and limited thrust, requiring multiple lifting and moving for turning and lateral movement, resulting in high labor intensity, low efficiency, and a high risk of slippage due to wet tracks or slopes, posing safety hazards to personnel and equipment.

[0003] In related technologies, although battery-powered rail traction vehicles can move autonomously along the tracks, their function is limited to transporting components along the track direction. They cannot directly move parts from low to high to the maintenance platform, requiring additional lifting equipment for "secondary handling," which increases operational steps and equipment investment. Therefore, how to achieve flexible transportation of railway parts within the station without adding fixed hanging facilities has become a pressing technical challenge in the current railway operation and maintenance field. Summary of the Invention

[0004] In view of this, the purpose of this application is to propose a transport vehicle to solve the above-mentioned problems.

[0005] To achieve the above objectives, a first aspect of this application provides a transport vehicle, characterized in that it comprises: a vehicle body; a sliding mechanism disposed on the vehicle body, including a first sliding mechanism and a second sliding mechanism; a transmission mechanism slidably connected to the sliding mechanism for transmitting a target workpiece; and a power mechanism connected to the sliding mechanism and the transmission mechanism for providing power to the sliding mechanism and the transmission mechanism; wherein the transmission mechanism is configured to: guide and cooperate with the first sliding mechanism to move along a first direction and transmit the target workpiece to a first position; and guide and cooperate with the second sliding mechanism to move along a second direction and transmit the target workpiece to a second position.

[0006] Optionally, the first sliding mechanism includes a first traction rope and a first slider. One end of the first traction rope is disposed at the first position, and the other end is connected to the first slider for pulling the first slider to slide along the first direction.

[0007] Optionally, the first slider has a first side and a second side opposite to each other. The first side is slidably connected to the vehicle body along the first direction, and the second side is detachably connected to the transmission mechanism to drive the transmission mechanism to slide along the first direction.

[0008] Optionally, the power mechanism includes a first power mechanism, which is drivenly connected to the first traction rope and is used to output traction force to the first traction rope to drive the first slider to move the transmission mechanism to the first position.

[0009] Optionally, the second sliding mechanism includes a second traction rope and a second slider. One end of the second traction rope is disposed at the second position, and the other end is connected to the second slider for pulling the second slider to slide along the second direction.

[0010] Optionally, the second slider has a third side and a fourth side opposite to each other. The third side is slidably connected to the vehicle body along the second direction, and the fourth side is detachably connected to the transmission mechanism to drive the transmission mechanism to slide along the second direction.

[0011] Optionally, the power mechanism further includes a second power mechanism, which is drivenly connected to the second traction rope and is used to output traction force to the second traction rope to drive the second slider to move the transmission mechanism to the second position.

[0012] Optionally, the power mechanism further includes a third power mechanism, which is disposed on the transmission mechanism and driven by the second traction rope, for driving the second traction rope to move the target workpiece from the second position to the first position.

[0013] Optionally, the transport vehicle further includes a control mechanism electrically connected to the vehicle body, the sliding mechanism, and the transmission mechanism, for controlling the transmission mechanism to move along the sliding mechanism and controlling the vehicle body to move within the work space.

[0014] Optionally, the vehicle body is provided with a walking mechanism at the bottom, which, driven by the control mechanism, moves the vehicle body in the work space.

[0015] As can be seen from the above, the transport vehicle provided in this application achieves a composite motion of "vertical lifting - lateral feeding" on the same vehicle body through the integrated design of "vehicle body - sliding mechanism - transmission mechanism": the first sliding mechanism lifts the transmission mechanism to the working height along the first direction, and the second sliding mechanism then sends the parts in a straight line to the maintenance platform along the second direction parallel to the working point. The whole process does not require an additional crane or rotating platform.

[0016] Furthermore, the traction rope-slider structure in this application converts the power mechanism output into smooth displacement motion, ensuring no impact or deviation during heavy-load lifting and lateral movement; the control mechanism uniformly schedules the walking, lifting and lateral movement operations, and can complete the "lifting-lateral movement-positioning" of parts in one go without blocking the track, significantly reducing transfer links, shortening operation time, reducing labor intensity and equipment investment, and improving the efficiency and safety of railway station operation and maintenance. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in this application or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a transport vehicle provided in an embodiment of this application.

[0019] Figure 2 This is a schematic diagram of another structure of a transport vehicle provided in an embodiment of this application.

[0020] Figure 3 This is a schematic diagram of another structure of a transport vehicle provided in an embodiment of this application.

[0021] Reference numerals: 1. Vehicle body; 12. Traveling mechanism; 2. Sliding mechanism; 22. First sliding mechanism; 222. First position; 24. Second sliding mechanism; 242. Second position; 3. Transmission mechanism; 42. First power mechanism; 44. Second power mechanism; 46. Third power mechanism; 5. Control mechanism. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with specific embodiments and the accompanying drawings.

[0023] It should be noted that, unless otherwise defined, the technical or scientific terms used in the embodiments of this application should have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," and similar terms used in the embodiments of this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are only used to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0024] As described in the background section, in related technologies, although the battery rail traction vehicle can move along the track, the vehicle body only has the function of conveying along the track direction. It cannot directly move parts from low to high to the maintenance platform. It still needs to be equipped with additional lifting equipment to complete the "secondary handling", which increases the operation links and equipment investment.

[0025] Furthermore, the fixed height of the tractor platform in the relevant technology makes it impossible to horizontally connect with maintenance points at different elevations, necessitating the use of mobile cranes or manual hydraulic forklifts for transfer. Crane entry requires procedures for power outages and track closures, resulting in lengthy preparation times. The placement of outriggers also occupies adjacent tracks, directly impacting train traffic.

[0026] Furthermore, hydraulic forklifts are prone to getting stuck when traveling on ballast tracks and between sleepers, and there is a risk of slippage when climbing slopes under heavy loads. During secondary handling, parts need to be loaded and unloaded multiple times, which can easily cause damage to wheelset journals and bearing seals, increasing the workload of subsequent flaw detection and repair. The limited "maintenance windows" at night and the segmented operation mode often lead to idle maintenance stations and waiting personnel, which restricts the station's demand for intensive and rapid operation and maintenance.

[0027] To address the aforementioned issues, this disclosure provides a transport vehicle. Through an integrated design of "vehicle body-sliding mechanism-transfer mechanism," it achieves a combined "vertical lifting-lateral feeding" motion on the same vehicle body: the first sliding mechanism lifts the transfer mechanism to the working height along a first direction, and the second sliding mechanism then linearly delivers the parts to the maintenance platform along a second direction parallel to the working point, eliminating the need for additional cranes or rotating platforms throughout the entire process.

[0028] Furthermore, the traction rope-slider structure in this application converts the power mechanism output into smooth displacement motion, ensuring no impact or deviation during heavy-load lifting and lateral movement; the control mechanism uniformly schedules the walking, lifting and lateral movement operations, and can complete the "lifting-lateral movement-positioning" of parts in one go without blocking the track, significantly reducing transfer links, shortening operation time, reducing labor intensity and equipment investment, and improving the efficiency and safety of railway station operation and maintenance.

[0029] After introducing the basic principles of this disclosure, various non-limiting embodiments of this disclosure will be described in detail below.

[0030] Figure 1 This is a schematic diagram of the structure of a transport vehicle provided in an embodiment of this application. Figure 2 This is a schematic diagram of another structure of a transport vehicle provided in an embodiment of this application. Figure 3 This is a schematic diagram of another structure of a transport vehicle provided in an embodiment of this application.

[0031] like Figure 1-3 As shown.

[0032] In some optional embodiments, the transport vehicle in this disclosure may include a vehicle body 1. The vehicle body 1 can be either a base for the entire machine or a mounting carrier for the sliding mechanism 2, the transmission mechanism 3, the power mechanism, and the control mechanism 5. The vehicle body 1 may adopt a frame structure welded from structural steel, with sufficient bending stiffness to support heavy railway components such as wheelsets and bogies (i.e., the target workpiece, not shown in the figure). Climbing ladders and handrails may be provided on both sides of the vehicle body 1 to facilitate maintenance personnel to climb to designated positions for work. At the same time, the frame may also reserve mounting positions for batteries and control boxes, thereby achieving integrated layout and reducing additional floor space.

[0033] In some optional embodiments, the sliding mechanism 2 is mounted on the vehicle body 1, including a first sliding mechanism 22 and a second sliding mechanism 24, which can be orthogonally arranged to provide guidance and driving force in a first direction (shown in the figure) and a second direction (shown in the figure), respectively. The sliding mechanism 2 can be a combination of lightweight aluminum alloy guide rails and hardened steel guide rails, which can reduce weight while ensuring wear resistance, enabling the transmission mechanism 3 to maintain straightness during heavy-load lifting and lateral movement, and reducing the risk of deviation.

[0034] In some optional embodiments, the transmission mechanism 3 can be slidably connected to the sliding mechanism 2 for carrying and transmitting the target workpiece (not shown in the figure). A replaceable nylon pad can be provided on the upper surface of the transmission mechanism 3 to prevent damage to the tread surface of the target workpiece, such as wheelsets; foldable guards can be provided on both sides of the transmission mechanism 3 to prevent the target workpiece from slipping during lifting or lateral movement, thereby improving transportation safety.

[0035] In some optional embodiments, the power mechanism can be connected to the sliding mechanism 2 and the transmission mechanism 3 to provide the power required for movement. The power mechanism can be arranged in a distributed manner, and may include a first power mechanism 42, a second power mechanism 44, and a third power mechanism 46. These power mechanisms can be installed near their respective sliding mechanisms 2, thereby shortening the transmission chain, reducing energy loss, and facilitating independent maintenance.

[0036] In some optional embodiments, the first sliding mechanism 22 may include a first traction rope (not shown in the figure) and a first slider (not shown in the figure). One end of the first traction rope may be fixed to a first position 222 (bottom of the vehicle body or end beam), and the other end of the first traction rope may be connected to the first slider to form a closed winding. The first traction rope may be made of high-strength fiber rope, which is lightweight, requires no lubrication, and can maintain flexibility in low-temperature environments, preventing the steel rope from freezing and failing, thereby ensuring reliable vertical lifting operation.

[0037] In some optional embodiments, the first slider has a first side (not shown in the figure) and a second side (not shown in the figure) opposite each other. The first side is slidably connected to the vehicle body along a first direction (shown in the figure) via a roller-guide rail pair, and the second side is provided with a quick hook that is detachably connected to the transmission mechanism 3. When the transmission mechanism 3 needs to be inspected or replaced, it can be lifted off as a whole simply by loosening the hook, shortening maintenance time and improving equipment utilization.

[0038] In some optional embodiments, the first power mechanism 42 is driven by the first traction rope and can adopt an integrated structure of worm gear reducer motor and rope wheel. It has a self-locking function and can keep the transmission mechanism in a suspended position in the event of power failure, preventing the workpiece from accidentally sliding down and ensuring operational safety.

[0039] In some optional embodiments, the second sliding mechanism 24 includes a second traction rope (not shown) and a second slider (not shown), the arrangement of which can be perpendicular to the first sliding mechanism 22, for transverse conveying of the target workpiece. The second traction rope can also be closed-loop wound, with the center line of the rope wheel coinciding with the center line of the guide rail, reducing lateral force, decreasing slider wear, and improving transverse accuracy.

[0040] In some optional embodiments, the second slider has a third side (not shown in the figure) and a fourth side (not shown in the figure) opposite each other. The third side can be slidably connected to the vehicle body 1 along the second direction (shown in the figure) by means of a rolling linear guide pair. The fourth side is also provided with a quick hook, which is detachably connected to the transmission mechanism 3 to realize synchronous bearing during transverse feeding and ensure fast and reliable bidirectional switching.

[0041] In some optional embodiments, the second power mechanism 44 can be connected to the second traction rope drive, which can adopt a servo motor + synchronous belt reduction scheme to realize closed-loop control of the lateral position, with a positioning accuracy of ±1 mm, meeting the process requirements of the target workpiece for accurate placement.

[0042] In some optional embodiments, the transport vehicle in this application may further include a third power mechanism 46, which may be mounted on the transmission mechanism 3 and driven by the second traction rope for reverse traction, returning the target workpiece from the second position 242 to the first position 222. The third power mechanism 46 may also be redundant with the second power mechanism 44, so that when one motor fails, the other side can complete the return operation independently, improving system availability.

[0043] In some optional embodiments, the transport vehicle of this application further includes a control mechanism 5, which can be electrically connected to the vehicle body 1, the sliding mechanism 2, and the transmission mechanism 3. The control mechanism 5 can adopt a distributed I / O architecture, with its main control PLC (not shown in the figure) installed inside the vehicle body 1, and remote I / O modules (not shown in the figure) arranged near the first and second power mechanisms, respectively. This design can reduce wiring length and improve signal anti-interference capability. The control mechanism 5 can also have a built-in map of the working scene (e.g., a railway station), which can automatically plan the walking path, realize automatic driving between tracks, and thus reduce the workload of the transport vehicle driver.

[0044] In some optional embodiments, the traveling mechanism 12 can be located at the bottom of the vehicle body 1. It can adopt a battery-powered front axle steering + rear axle drive configuration, with steel guards on the inner side of the wheelsets to form a guiding engagement with the rail head, ensuring automatic centering of the vehicle body on curved sections. Driven by the control mechanism 5, the traveling mechanism 12 can move freely along the working space without the need for laying additional tracks, realizing a flexible operation mode of "immediate arrival and immediate lifting, immediate lifting and immediate delivery," significantly reducing the investment and maintenance workload of station equipment.

[0045] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of this application (including the claims) is limited to these examples; within the framework of this application, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of the embodiments of this application as described above, which are not provided in the details for the sake of brevity.

[0046] The embodiments of this application are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the embodiments of this application should be included within the protection scope of this application.

Claims

1. A transport vehicle, characterized in that, include: Vehicle body; A sliding mechanism is provided on the vehicle body, including a first sliding mechanism and a second sliding mechanism; A transmission mechanism, slidably connected to the sliding mechanism, is used to transmit the target workpiece; A power mechanism, connected to the sliding mechanism and the transmission mechanism, is used to provide power to the sliding mechanism and the transmission mechanism; The transmission mechanism is configured to: guide and cooperate with the first sliding mechanism to move along a first direction and transmit the target workpiece to a first position; and guide and cooperate with the second sliding mechanism to move along a second direction and transmit the target workpiece to a second position.

2. The transport vehicle according to claim 1, characterized in that, The first sliding mechanism includes a first traction rope and a first slider. One end of the first traction rope is located at the first position, and the other end is connected to the first slider for pulling the first slider to slide along the first direction.

3. The transport vehicle according to claim 2, characterized in that, The first slider has a first side and a second side, the first side is slidably connected to the vehicle body along the first direction, and the second side is detachably connected to the transmission mechanism to drive the transmission mechanism to slide along the first direction.

4. The transport vehicle according to claim 2, characterized in that, The power mechanism includes a first power mechanism, which is drivenly connected to the first traction rope and is used to output traction force to the first traction rope to drive the first slider to move the transmission mechanism to the first position.

5. The transport vehicle according to claim 1, characterized in that, The second sliding mechanism includes a second traction rope and a second slider. One end of the second traction rope is located at the second position, and the other end is connected to the second slider, for pulling the second slider to slide along the second direction.

6. The transport vehicle according to claim 5, characterized in that, The second slider has a third side and a fourth side opposite to each other. The third side is slidably connected to the vehicle body along the second direction, and the fourth side is detachably connected to the transmission mechanism to drive the transmission mechanism to slide along the second direction.

7. The transport vehicle according to claim 5, characterized in that, The power mechanism further includes a second power mechanism, which is drivenly connected to the second traction rope and is used to output traction force to the second traction rope to drive the second slider to move the transmission mechanism to the second position.

8. The transport vehicle according to claim 5, characterized in that, The power mechanism further includes a third power mechanism, which is disposed on the transmission mechanism and connected to the second traction rope drive, for driving the second traction rope to move the target workpiece from the second position to the first position.

9. The transport vehicle according to claim 1, characterized in that, The transport vehicle also includes a control mechanism, which is electrically connected to the vehicle body, the sliding mechanism and the transmission mechanism, and is used to control the transmission mechanism to move along the sliding mechanism and to control the vehicle body to move within the work space.

10. The transport vehicle according to claim 9, characterized in that, The vehicle body is equipped with a walking mechanism at the bottom, which, driven by the control mechanism, moves the vehicle body within the work space.

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