Explosion-proof straight shuttle vehicle walking mechanism

Abstract

The invention relates to the technical field of automatic logistics equipment for dangerous goods, and provides an anti-explosion straight shuttle vehicle walking mechanism which comprises a ground rail assembly. The shuttle vehicle is connected to the ground rail assembly; the distance measuring assembly is used for detecting the walking distance of the shuttle vehicle; the controller is in signal connection with the distance measuring assembly and the shuttle vehicle and used for controlling the walking distance of the shuttle vehicle according to signal feedback of the distance measuring assembly; the limiter is in signal connection with the controller and used for triggering a stop signal when the shuttle vehicle walks to the first position, and the controller controls the shuttle vehicle to stop walking based on the stop signal; the mechanical stop assembly is used for providing mechanical stop limiting for the shuttle vehicle when the shuttle vehicle travels to the second position; in the advancing direction of the shuttle vehicle, the second position is located downstream of the first position. By means of the arrangement, the running safety and stability of the anti-explosion straight shuttle vehicle walking mechanism can be further improved, and higher safety guarantee is provided for application of the anti-explosion straight shuttle vehicle walking mechanism in the field of transportation of flammable, explosive and dangerous goods.

Description

Technical Field

[0001] This invention relates to the field of automated logistics equipment for hazardous materials, and in particular to a traveling mechanism for an explosion-proof straight shuttle vehicle. Background Technology

[0002] In modern logistics warehousing, intelligent manufacturing and other fields, efficient material transfer is a key link to improve overall production and operation efficiency. As a logistics transfer device with a high degree of automation, fast operation speed and precise positioning, the straight shuttle device has been widely used in scenarios such as material handling between shelves, material flow on production lines and goods entry and exit in warehouse centers due to its excellent material conveying capacity.

[0003] A linear shuttle system typically consists of a traveling mechanism and a conveying mechanism mounted above it. The traveling mechanism is the core component that enables the linear shuttle to move stably along a preset track, and its performance directly determines the overall efficiency and stability of the system. However, friction and collisions are unavoidable during actual operation. For example, if the linear shuttle fails to decelerate and stop in time at the preset position due to common reasons such as component failure or signal delay, it may collide violently with the track or even derail.

[0004] Such violent collisions not only cause mechanical damage and shorten equipment lifespan, but may also generate high-temperature sparks due to the impact between metal parts. In some special applications, such as the transportation of flammable, explosive, or hazardous materials, this could lead to safety hazards such as spillage, fire, or explosion. For these reasons, the application of straight-line shuttle devices in the transportation of flammable, explosive, or hazardous materials is greatly limited.

[0005] In view of the above problems, how to further improve the safety and stability of the straight shuttle vehicle's traveling mechanism has become an important technical problem that urgently needs to be solved. Summary of the Invention

[0006] This invention provides an explosion-proof straight-line shuttle mechanism to address the shortcomings of existing straight-line shuttle mechanisms in terms of safety and stability, offering higher safety and stability and providing greater safety assurance for their application in the transportation of flammable, explosive, and dangerous goods.

[0007] This invention provides an explosion-proof straight-line shuttle vehicle travel mechanism, comprising: Ground rail assembly; A shuttle car is connected to the ground rail assembly and can travel along the extension direction of the ground rail assembly; A ranging component is used to detect the travel distance of the shuttle vehicle; A controller, connected to the ranging component and the shuttle car, is used to control the travel distance of the shuttle car based on the signal feedback from the ranging component. A limit switch, connected to the controller, is used to trigger a stop signal when the shuttle reaches the first position, and the controller controls the shuttle to stop moving based on the stop signal; A mechanical stop assembly is provided to stop and limit the shuttle when the shuttle travels to a second position, wherein the second position is downstream of the first position in the direction of travel of the shuttle.

[0008] The present invention provides an explosion-proof straight-line shuttle travel mechanism, the shuttle comprising: Frame; Wheels, connected to the frame and supported on the ground rail assembly, are made of non-metallic materials; A drive assembly, connected to the frame and driven by the wheels, is used to drive the wheels to rotate.

[0009] The present invention provides an explosion-proof straight-line shuttle vehicle travel mechanism, wherein the drive assembly includes: An explosion-proof walking motor is fixedly connected to the vehicle frame and is signal-connected to the controller; The drive wheel axle is rotatably supported on the frame and arranged perpendicular to the travel direction of the shuttle. Two wheels are respectively connected to the two ends of the drive wheel axle. The output end of the explosion-proof travel motor is connected to the drive wheel axle for transmission. The driven wheel axle is rotatably supported on the frame and is arranged parallel to the drive wheel axle. Two wheels are respectively connected to the two ends of the driven wheel axle.

[0010] According to the present invention, an explosion-proof straight-through shuttle vehicle travel mechanism is provided, wherein the ranging component includes: a pair of explosion-proof laser rangefinders and laser ranging reflectors; One of the explosion-proof laser rangefinder and the laser rangefinder reflector is connected to the shuttle, and the other is arranged on the shuttle's travel path.

[0011] According to the present invention, an explosion-proof straight-line shuttle vehicle traveling mechanism is provided, wherein the limiter includes: a pair of limit switches and a limit baffle; The limiter is arranged at at least one end of the shuttle along its own direction of travel, and at either end, one of the limit switch and the limit baffle is connected to the shuttle, and the other is set on the travel path of the shuttle. At the first position, the limit switch contacts the limit baffle, triggering the stop signal.

[0012] According to the present invention, an explosion-proof straight-line shuttle travel mechanism is provided, wherein the mechanical stop assembly is arranged at at least one end of the shuttle along its own travel direction; The mechanical stop assembly includes: a pair of stops and a stop; The stop block is connected to the shuttle car, and the stop is set on the travel path of the shuttle car; at least one of the stop block and the stop is made of non-metallic material. In the second position, the stop block and the stop abut against each other.

[0013] The present invention provides an explosion-proof straight-line shuttle travel mechanism, which further includes a track brush connected to the shuttle; the track brush is in contact with the ground rail assembly.

[0014] According to the present invention, an explosion-proof straight-line shuttle vehicle travel mechanism is provided, which further includes at least two sets of guide wheel assemblies, and two sets of the guide wheel assemblies are respectively connected to both ends of the shuttle vehicle; The guide wheel assembly includes at least one guide wheel group, each guide wheel group including two guide wheels made of non-metallic material, the two guide wheels being arranged alternately along the side of the shuttle car for abutting against the two sides of the ground rail assembly respectively.

[0015] According to the present invention, an explosion-proof straight-line shuttle vehicle travel mechanism is provided, wherein the guide wheel assembly further includes a connecting plate; The connecting plate includes a first part and a second part at an angle. The first part is connected to the end of the shuttle, and the second part is parallel to the upper surface of the ground rail assembly. The guide wheel is rotatably connected to the second part.

[0016] According to the present invention, an explosion-proof straight-line shuttle travel mechanism is provided, wherein the track brush is connected to the shuttle through the connecting plate; the track brush is connected to the second part.

[0017] According to the present invention, an explosion-proof straight-line shuttle travel mechanism is provided, wherein the mechanical stop assembly is arranged on both sides of each end of the shuttle.

[0018] The present invention provides an explosion-proof straight-line shuttle vehicle running mechanism, the frame comprising: There are at least two crossbeams arranged in parallel alternations; There are at least two longitudinal beams arranged in parallel and alternating directions. The longitudinal beams are set at an angle to the cross beams and are fixedly connected to the cross beams.

[0019] According to the present invention, an explosion-proof straight-line shuttle vehicle traveling mechanism is provided, wherein the upper surface of the vehicle frame is integrated with a mounting plate, and the mounting plate is used to mount a conveyor.

[0020] According to the present invention, an explosion-proof straight-line shuttle vehicle travel mechanism is provided, wherein the explosion-proof laser rangefinder is connected to the shuttle vehicle; It also includes a laser rangefinder protective cover that is installed over the explosion-proof laser rangefinder.

[0021] According to the present invention, an explosion-proof straight-line shuttle travel mechanism is provided, wherein the ground rail assembly includes two parallel and alternating tracks.

[0022] The present invention provides an explosion-proof straight-line shuttle travel mechanism, wherein the ground rail assembly further includes: Multiple track pressure plates are arranged alternately along the length of the track, and the track pressure plates are used to press and fix the track to the ground.

[0023] The explosion-proof straight-line shuttle mechanism provided by this invention can accurately detect the shuttle's travel distance in real time through a ranging component, and feed the distance signal back to the controller in real time. The controller precisely controls the shuttle's travel distance based on this signal. When the shuttle reaches a designated distance, it stops. If the ranging component malfunctions and cannot provide a stop signal in time, the shuttle will continue to move to the first position and trigger a stop signal, which the controller will use to stop the shuttle. If the controller or the shuttle malfunctions and cannot receive a stop signal, or cannot stop after receiving a stop signal, the shuttle will continue to move to the second position and trigger a mechanical stop limit to prevent the shuttle from derailing and causing greater damage.

[0024] Compared to related technologies, the ranging component can precisely control the shuttle's travel distance, reducing the risk of collisions; the limit switch can promptly provide a stop signal when the ranging component malfunctions, stopping the shuttle and thus controlling its travel range; the mechanical stop component can prevent the shuttle from derailing and causing greater damage when the controller or shuttle malfunctions and cannot receive or respond to the stop signal. Through the coordinated operation of precise control, electronic limit protection, and mechanical stop protection, the ability of the straight-line shuttle's traveling mechanism to cope with sudden malfunctions is effectively improved, reducing reliability issues under extreme conditions and minimizing the probability of collisions. This further enhances its operational safety and stability, providing a safety guarantee for its application in the transportation of flammable, explosive, and hazardous materials. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in this invention 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 some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of the explosion-proof straight shuttle vehicle traveling mechanism provided in an embodiment of the present invention.

[0027] Figure 2 This is a schematic diagram of the rack structure provided in an embodiment of the present invention.

[0028] Figure 3 This is one of the structural schematic diagrams of the shuttle provided in the embodiments of the present invention.

[0029] Figure 4 This is the second structural schematic diagram of the shuttle provided in the embodiment of the present invention.

[0030] Figure 5 This is a right view of the explosion-proof straight shuttle vehicle traveling mechanism provided in an embodiment of the present invention.

[0031] Figure 6 yes Figure 5 A magnified view of part A in the middle.

[0032] Figure 7 yes Figure 5 A magnified view of part B in the middle section.

[0033] Figure label: 10. Ground rail assembly; 11. Rail; 12. Rail pressure plate; 20. Shuttle; 21. Frame; 211. Crossbeam; 212. Longitudinal beam; 213. First connecting part; 214. Second connecting part; 22. Wheel; 23. Drive assembly; 231. Explosion-proof walking motor; 232. Drive wheel axle; 233. Driven wheel axle; 234. Motor support plate; 30. Distance measuring assembly; 31. Explosion-proof laser rangefinder; 32. Laser rangefinder reflector; 33. Laser rangefinder protective cover; 40. Limiter; 41. Limit switch; 42. Limit baffle; 43. Limit switch connector; 50. Mechanical stop assembly; 51. Stop block; 52. Stop; 60. Guide wheel assembly; 61. Guide wheel; 62. First connecting plate; 63. Second connecting plate; 70. Rail brush. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0035] To better understand the explosion-proof straight-line shuttle traveling mechanism provided in this embodiment of the invention, its application background is first introduced. As a highly automated, fast-running, and precisely positioned logistics transfer device, the straight-line shuttle has been widely used in various fields. A straight-line shuttle typically consists of a traveling mechanism and a conveying mechanism positioned above the traveling mechanism. The traveling mechanism is the core component that enables the straight-line shuttle to move stably along a preset track.

[0036] However, friction and collision are unavoidable during actual operation of the traveling mechanism. For example, when the traveling mechanism fails to slow down and stop in time at the preset position due to common reasons such as component failure or signal delay, it will collide violently with the track and even run off the track.

[0037] Such violent collisions not only cause mechanical damage and shorten equipment lifespan, but may also generate high-temperature sparks due to the impact between metal parts. In some special applications, such as the transportation of flammable, explosive, or hazardous materials, this could lead to safety hazards such as spillage, fire, or explosion. For these reasons, its application in the transportation of flammable, explosive, and hazardous materials is greatly limited.

[0038] In view of the above problems, embodiments of the present invention provide an explosion-proof straight-line shuttle vehicle traveling mechanism, which has the advantages of higher safety and stability.

[0039] The following is combined with Figures 1 to 7 The explosion-proof straight-line shuttle traveling mechanism of the present invention is described.

[0040] Reference Figures 1 to 4 An explosion-proof straight-line shuttle mechanism includes a ground rail assembly 10, a shuttle 20, a ranging assembly 30, a controller, a limit switch 40, and a mechanical stop assembly 50. The shuttle 20 is connected to the ground rail assembly 10 and can travel along the extension direction of the ground rail assembly 10. The ranging assembly 30 is used to detect the travel distance of the shuttle 20. The controller is signal-connected to the ranging assembly 30 and the shuttle 20, and is used to control the travel distance of the shuttle 20 based on the signal feedback from the ranging assembly 30. The limit switch 40 is signal-connected to the controller, and is used to trigger a stop signal when the shuttle 20 travels to a first position, and the controller controls the shuttle 20 to stop traveling based on the stop signal. The mechanical stop assembly 50 is used to provide a mechanical stop limit for the shuttle 20 when it travels to a second position, where the second position is downstream of the first position in the direction of travel of the shuttle 20.

[0041] In practical applications, the ranging component 30 can detect the travel distance of the shuttle 20 in real time and accurately, and feed the distance signal back to the controller in real time. The controller precisely controls the travel distance of the shuttle 20 based on this signal. When the shuttle 20 reaches the specified distance, it stops. If the ranging component 30 malfunctions and cannot provide a stop signal in time, the shuttle 20 will continue to move to the first position and trigger a stop signal. The controller will then control the shuttle 20 to stop based on the stop signal. If the controller or the shuttle 20 malfunctions and cannot receive a stop signal, or cannot stop after receiving a stop signal, the shuttle 20 will continue to move to the second position and trigger a mechanical stop limit to prevent the shuttle 20 from running off the track 11 and causing greater damage.

[0042] Compared to related technologies, the ranging component 30 can precisely control the travel distance of the shuttle 20, reducing the risk of collision; while the limit switch 40 can promptly feed back a stop signal when the ranging component 30 malfunctions, controlling the shuttle 20 to stop operation, thereby controlling the travel range of the shuttle 20; the mechanical stop component 50 can prevent the shuttle 20 from running off the track 11 and causing greater damage when the controller or the shuttle 20 malfunctions and cannot receive or respond to the stop signal, using mechanical stopping. Through the coordinated operation of precise control, electronic limit protection, and mechanical stop protection, the ability of the traveling mechanism to cope with sudden failures is effectively improved, the problem of insufficient reliability under extreme working conditions is reduced, the probability of collision accidents is minimized, and its operational safety and stability are further improved, providing a safety guarantee for its application in the field of flammable, explosive, and dangerous goods transportation.

[0043] The following section will describe in detail the specific structure of each component in the walking mechanism, with reference to the accompanying drawings.

[0044] Reference Figure 2 The ground rail assembly 10 includes a rail 11 and a rail 11 pressure plate; there are two parallel rails 11 arranged alternately, which define the running trajectory of the shuttle 20; multiple rail 11 pressure plates are arranged alternately along the length of the rail 11, which are used to press and fix the rail 11 to the ground, thereby fixing the rail 11 to the ground.

[0045] In detail, track 11 is made of aluminum alloy, giving it excellent strength, corrosion resistance, and lightweight advantages, making it more stable and durable. The specific specifications, dimensions, cross-sectional shape, and arrangement direction of track 11 need to be designed according to the actual application scenario; no specific restrictions are imposed here. Track 11 pressure plates are arranged along the width direction of track 11 and extend to both sides of the track 11 width direction. Track 11 is supported on the track 11 pressure plates. Both ends of the track 11 pressure plates have clamping parts extending towards the track 11, thus clamping and fixing the bottom sides of track 11 to the track 11 pressure plates. The track 11 pressure plates can be connected to the ground using bolts or other connecting components, thereby achieving the connection and fixation of track 11 on the ground.

[0046] In one example of the present invention, the shuttle 20 is connected to the track 11 and can travel along the extension direction of the track 11. Specifically, the shuttle 20 includes a frame 21, wheels 22, and a drive assembly 23; wherein, the frame 21 constitutes the supporting and load-bearing foundation of the entire shuttle 20, providing mounting positions for the various components of the shuttle 20; the wheels 22 are connected to the frame 21 and supported on the track 11, used to cooperate with the track 11 to enable the shuttle 20 to travel on the track 11; the wheels 22 are made of non-metallic materials (e.g., polyurethane), and the non-metallic material of the wheels 22 can avoid metal friction and collision with the track 11, reducing the possibility of sparks generated during operation and meeting the requirements for application in explosion-proof environments.

[0047] In more detail, the frame 21 includes crossbeams 211 and longitudinal beams 212; at least two crossbeams 211 are arranged in parallel and alternately; at least two longitudinal beams 212 are arranged in parallel and alternately, and the longitudinal beams 212 are set at an angle to the crossbeams 211 and are fixedly connected to the crossbeams 211. The crossbeams 211 and longitudinal beams 212 arranged in both directions together form a structurally stable frame 21.

[0048] In more detail, both the crossbeam 211 and the longitudinal beam 212 are made of 304 stainless steel to ensure the overall structural strength and stability of the frame 21. The crossbeam 211 is arranged along the traveling direction of the shuttle 20, while the longitudinal beam 212 is perpendicular to the crossbeam 211, making the frame 21 have a "well" shaped structure. The crossbeam 211 and the longitudinal beam 212 are welded together. The longitudinal beam 212 is located above the crossbeam 211, and a mounting plate for installing the conveyor is integrated on the longitudinal beam 212 to facilitate the connection and fixation of the conveyor on the shuttle 20. The wheels 22 are connected to the frame 21 and cooperate with the track 11, rotating under the drive of the drive assembly 23, enabling the shuttle 20 to travel on the track 11.

[0049] In one example of the present invention, reference is made to Figure 4 and Figure 5The wheels 22 are supported on the upper surface of the track 11. Every two wheels form a wheel set. The two wheels 22 in each wheel set are respectively connected to the two sides of the frame 21 perpendicular to the travel direction of the shuttle 20. The shuttle 20 has at least two wheel sets, and multiple wheel sets are arranged alternately along the travel direction of the shuttle 20. In this way, the frame 21 is stably supported by multiple wheel sets.

[0050] In one example of the present invention, the drive assembly 23 includes an explosion-proof walking motor 231, a drive wheel axle 232, and a driven wheel axle 233; wherein, the explosion-proof walking motor 231 is fixedly connected to the frame 21 and is signal-connected to the controller; the drive wheel axle 232 is rotatably supported on the frame 21 and arranged perpendicular to the walking direction of the shuttle 20, and two wheels 22 in one wheel set are respectively connected to the two ends of the drive wheel axle 232, and the output end of the explosion-proof walking motor 231 is drively connected to the drive wheel axle 232; the driven wheel axle 233 is rotatably supported on the frame 21 and is arranged parallel to and alternately with the drive wheel axle 232, and two wheels 22 in one wheel set are respectively connected to the two ends of the driven wheel axle 233.

[0051] In actual operation, the explosion-proof walking motor 231 drives the drive wheel axle 232 to rotate, and the drive wheel axle 232 drives one of the wheel sets to rotate, so that the shuttle car 20 can move on the track 11. The driven wheel axle 233 and the wheels 22 on it play an auxiliary support and guiding role. The controller controls the operation or stop of the explosion-proof motor according to the signal, thereby controlling the movement and stop of the shuttle car 20.

[0052] In detail, the explosion-proof walking motor 231 is a special motor that can operate safely in flammable and explosive environments. It uses a high-strength cast iron or cast aluminum alloy explosion-proof shell, a curved ring plus sealing ring sealing structure, and optimized internal windings and other components to avoid generating ignition energy. As a drive component that has been widely used in coal mines, oil and gas fields, its specific structure and working principle can be referred to the existing technology, and will not be elaborated in the example of this invention.

[0053] The explosion-proof walking motor 231 is supported on the frame 21 by a motor support plate 234 welded to the inside of the frame 21. The explosion-proof walking motor 231 integrates an encoder, which can collect real-time operating data such as the speed and angle of the explosion-proof walking motor 231, providing signal feedback for the speed adjustment, position control, and precise operation of the shuttle 20, thus achieving precise control of the shuttle 20. The drive wheel axle 232 and the driven wheel axle 233 can be rotatably supported on the frame 21 by bearings. The output end of the explosion-proof walking motor 231 can be connected to the drive wheel axle 232 via a meshing gear set, reducer, or other means.

[0054] To ensure the stability of the shuttle 20 running on the track 11, in one example of the present invention, the shuttle 20 further includes at least two sets of guide wheel assemblies 60, which are respectively connected to both ends of the shuttle 20. Each guide wheel assembly 60 includes at least one set of guide wheels, and each set includes two guide wheels 61 made of a non-metallic material (e.g., polyurethane). The two guide wheels 61 are arranged alternately along the side of the shuttle 20, respectively abutting against the two sides of the ground rail assembly 10. This arrangement ensures that the laterally arranged guide wheels 61 abut against the two sides of the ground rail assembly 10, thereby providing lateral restraint for the shuttle 20, improving the smoothness and safety of the shuttle 20 traveling along the track 11. Simultaneously, the non-metallic guide wheels 61 avoid metal friction and collision with the track 11, reducing the possibility of sparks during operation and meeting the requirements for application in explosion-proof environments.

[0055] In some optional embodiments of the present invention, the two guide wheels 61 in each guide wheel assembly can abut against the opposite sides of the two guide rails, or they can abut against the opposite sides of the same guide rail. When the two guide wheels 61 abut against the opposite sides of the same guide rail, the two guide wheel assemblies can be located on the same side at both ends of the shuttle 20, or they can be located on different sides at both ends of the shuttle 20. The guide wheel assembly 60 with the above-described structure enhances the lateral anti-deviation capability at both ends of the shuttle 20, ensuring the stability and reliability of the shuttle 20's operation. The guide wheel assembly 60 with the above-described structure can be selected according to actual needs.

[0056] In this embodiment, the guide wheel assembly 60 is provided with two sets, and the two guide wheels 61 in each guide wheel set abut against the opposite side of the same guide rail, and the two guide wheel sets are located on the same side at both ends of the shuttle 20.

[0057] In detail, the guide wheel assembly 60 also includes a connecting plate; the connecting plate includes a first part and a second part at an angle; wherein the first part is connected to the end of the frame 21, and the second part is located above the ground rail assembly 10 and parallel to the upper surface of the ground rail assembly 10; the guide wheel 61 is rotatably connected to the second part.

[0058] More specifically, the shuttle 20 also includes two connecting parts, located at opposite ends of the frame 21 along its direction of movement. For ease of understanding and distinction, the connecting part at the rear end of the frame 21 is designated as the first connecting part 213, and the connecting part at the front end as the second connecting part 214. The first connecting part 213 is made of channel steel, with both ends fixedly connected to two crossbeams 211, specifically including but not limited to welding or bolts. The first connecting part 213 forms a connection base at the rear end of the frame 21. Similarly, the second connecting part 214 is also made of channel steel, with both ends fixedly connected to two crossbeams 211, specifically including but not limited to welding or bolts. The second connecting part 214 forms a connection base at the front end of the frame 21.

[0059] The connecting plate is made of 304 stainless steel. The first and second parts of the plate are perpendicular to each other, making the connecting plate have an "L" shape. The first part is attached to the connecting part and connected by bolts and other connecting parts. The second part extends out of the outside of the frame 21 and is parallel to the upper surface of the track 11. The second part is a few centimeters away from the upper surface of the track 11 to avoid interference. The guide wheel 61 is rotatably connected to the second part through axle and bolts to cooperate with the side of the guide rail to constrain and guide the shuttle 20.

[0060] In one example of the present invention, the explosion-proof straight-line shuttle mechanism further includes a track brush 70 connected to the shuttle 20, which contacts the ground rail assembly 10. With this configuration, during the shuttle 20's movement, the track brush 70 can contact the ground rail assembly 10 to clean it, removing dust, debris, and other particulate impurities from the track assembly. This not only reduces the shuttle 20's running resistance and wear on the wheels 22 and guide wheels 61, but also minimizes safety hazards caused by friction between the wheels 22, guide wheels 61, and impurities in explosion-proof scenarios.

[0061] The specific number and arrangement of the track brushes 70 can be selected according to actual needs. For example, two track brushes 70 can be set, with the two track brushes 70 located on both sides of the same end or different ends of the shuttle 20, used to clean the two tracks 11 separately as the shuttle 20 moves; alternatively, four track brushes 70 can be set, with two track brushes 70 located on both sides of one end of the shuttle 20 and the other two track brushes 70 located on both sides of the other end of the shuttle 20, using the four track brushes 70 to clean the two tracks 11 separately as the shuttle 20 moves forward or backward. The above arrangement of the track brushes 70 can be selected according to actual needs.

[0062] In this embodiment, there are four track brushes 70, two of which are located on both sides of one end of the shuttle 20, and the other two are located on both sides of the other end of the shuttle 20.

[0063] In detail, the above structure has four connecting plates, two of which are located on both sides of one end of the shuttle 20, and the other two are located on both sides of the other end of the shuttle 20.

[0064] Reference Figures 5 to 7 Two of the connecting plates provide mounting bases for the guide wheel assembly and also serve as connection bases for the track brush 70. For ease of understanding and distinction, these are designated as the first connecting plate 62. The other two connecting plates are used solely for mounting the track brush 70 and are designated as the second connecting plate 63. On the first connecting plate 62, the track brush 70 is connected to the second part via bolts or other connecting components and is located between the two guide wheels 61. On the second connecting plate 63, the track brush 70 is also connected to the second part via bolts or other connecting components. This technical solution facilitates full utilization of space and simplifies the structure.

[0065] The above is an introduction to the structure of the ground rail assembly 10 and the shuttle 20. The following will describe in detail the other components of the explosion-proof straight shuttle travel mechanism, such as the ranging assembly 30, the limiter 40 and the mechanical stop assembly 50, with reference to the attached drawings.

[0066] Reference Figures 1 to 7 The ranging component 30 is mainly used to detect the travel distance of the shuttle 20, and the controller controls the travel distance of the shuttle 20 based on the signal feedback from the ranging component 30. Depending on the working principle, the ranging component 30 can take different forms, including but not limited to laser ranging, ultrasonic ranging, etc.

[0067] In this embodiment, the ranging component 30 includes a pair of explosion-proof laser rangefinders 31 and laser ranging reflectors 32; wherein, one of the explosion-proof laser rangefinders 31 and laser ranging reflectors 32 is connected to the shuttle 20, and the other is arranged on the travel path of the shuttle 20.

[0068] With this setup, as the shuttle 20 moves, the explosion-proof laser rangefinder 31 emits a laser signal toward the laser ranging reflector 32. After being reflected by the reflector, the laser is received by the explosion-proof laser rangefinder 31. The device calculates the time difference between the emission and reception of the laser signal and, combined with the speed of light, calculates the real-time distance that the explosion-proof laser rangefinder 31 will travel toward the laser ranging reflector 32, thereby obtaining the travel distance of the shuttle 20.

[0069] In detail, the explosion-proof laser rangefinder 31 uses a high-strength aluminum alloy or stainless steel shell, combined with overcurrent protection, anti-static, anti-sparking design and sealed protection design of the internal circuit, to prevent electric sparks and high temperatures generated during operation from igniting the surrounding flammable and explosive media. As a sensor component that has been widely used in chemical, coal mining and other fields, its specific structure and working principle can be referred to the existing technology, and will not be elaborated in the example of this invention.

[0070] An explosion-proof laser rangefinder 31 is fixedly connected to the shuttle 20, and a laser ranging reflector 32 is fixedly connected to the travel path of the shuttle 20, for example, it can be fixed to the ground between two tracks 11. During operation, the explosion-proof laser rangefinder 31 moves with the shuttle 20 and emits a laser signal towards the fixed laser ranging reflector 32. The laser signal is reflected by the reflector and received by the rangefinder, thus obtaining the real-time distance between the shuttle 20 and the laser ranging reflector 32.

[0071] More specifically, a laser rangefinder protective cover 33 is fixedly connected to the shuttle 20, covering the explosion-proof laser rangefinder 31. The laser rangefinder protective cover 33 protects the explosion-proof laser rangefinder 31, ensuring its safe and stable operation.

[0072] After the distance measuring component 30 detects the travel distance of the shuttle 20, it feeds the distance signal back to the controller in real time. The controller controls the travel distance of the shuttle 20 based on the signal. The controller can be a PLC controller (Programmable Logic Controller). The PLC controller dynamically adjusts the travel distance of the shuttle 20 based on the PID (Proportional-Integral-Derivative) closed-loop control algorithm to achieve precise control of the travel distance of the shuttle 20.

[0073] In a further example of the present invention, the limiter 40 is used to trigger a stop signal at a first position when the ranging component 30 malfunctions and cannot give a stop signal in time. The controller controls the shuttle 20 to stop moving based on the stop signal to avoid violent expansion.

[0074] In detail, the limiter 40 includes a pair of limit switches 41 and limit baffles 42; the limiter 40 is arranged at at least one end of the shuttle 20 along its own travel direction, and at either end, one of the limit switches 41 and the limit baffles 42 is connected to the shuttle 20, and the other is set on the travel path of the shuttle 20.

[0075] With this configuration, the pair of limit switches 41 and limit baffles 42 are placed at the end of the shuttle 20 and on the travel path, respectively. When the ranging component 30 suddenly malfunctions and cannot send a stop signal normally, as the shuttle 20 continues to run to the first position, the limit switches 41 and limit baffles 42 come into contact and are triggered, generating a stop signal and transmitting it to the controller. The controller issues a stop command according to the control signal, controlling the shuttle 20 to stop moving, thereby controlling the travel range of the shuttle 20 and reducing the occurrence of violent collision accidents.

[0076] In this embodiment, limiters 40 are arranged at both ends of the shuttle 20 along its own walking direction, thereby controlling the walking range of the shuttle 20 during forward and backward movement.

[0077] In detail, the frame 21 is equipped with a limit switch 41 connector. The limit switch 41 connector is located at the bottom of the frame 21, and one side of it is connected to the frame 21 by welding or bolts, while the other side is connected to the limit switch 41. The limit baffle 42 is fixedly connected to the inside of the track 11 so that when the shuttle 20 moves to the first position, the limit baffle 42 contacts the lever of the limit switch 41, triggering the limit switch 41.

[0078] In a further example of the present invention, the mechanical stop assembly 50 is used to prevent the shuttle 20 from derailing from the track 11 and causing greater damage when the controller or shuttle 20 malfunctions and is unable to receive or respond to a stop signal.

[0079] In detail, the mechanical stop assembly 50 is arranged at at least one end of the shuttle 20 along its own travel direction; the mechanical stop assembly 50 includes a pair of stops 51 and stops 52 arranged in pairs; wherein, the stops 51 are connected to the shuttle 20, and the stops 52 are arranged on the travel path of the shuttle 20, and at least one of the stops 51 and stops 52 is made of a non-metallic material (e.g., nylon).

[0080] With this configuration, the pairs of stops 51 and 52 are placed on the shuttle 20 and its travel path. When the controller or the explosion-proof walking motor 231 of the shuttle 20 suddenly fails and cannot receive or respond to the stop signal, the stops 51 and 52 will collide in the second position to force the shuttle 20 to stop, thus preventing the shuttle 20 from running off the track 11 and causing greater damage. At the same time, the stops 51 and 52, which are made of non-metallic materials, can prevent the two from generating high-temperature sparks when they collide, thus meeting the requirements for application in explosion-proof scenarios.

[0081] In this embodiment, mechanical stop components 50 are arranged at both ends of the shuttle 20 along its own traveling direction, thereby preventing the shuttle 20 from running off the track 11 during forward and backward travel.

[0082] In detail, there are four sets of mechanical stop components 50. Two sets of mechanical stop components 50 are located on both sides of one end of the shuttle 20, and the other two sets are located on both sides of the other end of the shuttle 20. The four sets of mechanical stop components 50, which are symmetrically arranged, can evenly distribute the impact force to both sides of the shuttle 20 when a collision is triggered when the shuttle 20 moves forward or backward, so as to avoid the impact force being concentrated on one side or a single point, causing rollover or localized damage.

[0083] More specifically, the stop blocks 51 are made of nylon material. Of the four stop blocks 51, two are connected to both ends of the first connecting part 213 and protrude outwards toward the frame 21, while the other two stop blocks 51 are connected to both ends of the second connecting part 214 and protrude outwards toward the frame 21. The stop 52 is made of 304 stainless steel and is located at the end of the track 11 and fixedly connected to the ground or the track 11.

[0084] It is understood that, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of the different embodiments or examples.

[0085] The explosion-proof straight-line shuttle mechanism provided in this embodiment of the invention allows the ranging component 30 to precisely control the travel distance of the shuttle 20, reducing the risk of collision. The limit switch 40 can promptly provide a stop signal when the ranging component 30 malfunctions, controlling the shuttle 20 to stop and thus controlling its travel range. The mechanical stop component 50 prevents the shuttle 20 from derailing from the track 11 and causing greater damage when the controller or shuttle 20 malfunctions and cannot receive or respond to the stop signal. Through the coordinated operation of precise control, electronic limit protection, and mechanical stop protection, the mechanism's ability to cope with sudden malfunctions is effectively improved, reducing reliability issues under extreme conditions and minimizing the probability of collisions. This further enhances its operational safety and stability, providing a safety guarantee for its application in the transportation of flammable, explosive, and hazardous materials.

[0086] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A travel mechanism for an explosion-proof straight-line shuttle, characterized in that, include: Ground rail assembly (10); A shuttle (20) is connected to the ground rail assembly (10) and can travel along the extension direction of the ground rail assembly (10); A ranging component (30) is used to detect the travel distance of the shuttle (20); The controller is connected to the ranging component (30) and the shuttle (20) by signal, and is used to control the travel distance of the shuttle (20) according to the signal feedback of the ranging component (30); The limit switch (40) is connected to the controller signal and is used to trigger a stop signal when the shuttle (20) moves to the first position. The controller controls the shuttle (20) to stop moving based on the stop signal. A mechanical stop assembly (50) is provided to stop the shuttle (20) when the shuttle (20) travels to a second position, the second position being downstream of the first position in the direction of travel of the shuttle (20).

2. The explosion-proof straight-line shuttle vehicle traveling mechanism according to claim 1, characterized in that, The shuttle (20) includes: Frame (21); Wheels (22) are connected to the frame (21) and supported on the ground rail assembly (10), and the wheels (22) are made of non-metallic materials; A drive assembly (23) is connected to the frame (21) and is connected to the wheel (22) for driving the wheel (22) to rotate.

3. The explosion-proof straight-line shuttle travel mechanism according to claim 2, characterized in that, The driving component (23) includes: An explosion-proof walking motor (231) is fixedly connected to the frame (21) and is signal-connected to the controller; The drive wheel axle (232) is rotatably supported on the frame (21) and arranged perpendicular to the walking direction of the shuttle (20). Two wheels (22) are respectively connected to the two ends of the drive wheel axle (232). The output end of the explosion-proof walking motor (231) is connected to the drive wheel axle (232) in a transmission connection. The driven wheel axle (233) is rotatably supported on the frame (21) and is arranged parallel to the drive wheel axle (232). Two wheels (22) are respectively connected to the two ends of the driven wheel axle (233).

4. The explosion-proof straight-line shuttle travel mechanism according to claim 1, characterized in that, The ranging component (30) includes: a pair of explosion-proof laser rangefinders (31) and laser ranging reflectors (32); One of the explosion-proof laser rangefinder (31) and the laser rangefinder reflector (32) is connected to the shuttle (20), and the other is arranged on the travel path of the shuttle (20).

5. The explosion-proof straight-line shuttle travel mechanism according to claim 1, characterized in that, The limiter (40) includes: a pair of limit switches (41) and a limit baffle (42); The limiter (40) is arranged at at least one end of the shuttle (20) along its own walking direction, and at either end, one of the limit switch (41) and the limit baffle (42) is connected to the shuttle (20), and the other is set on the travel path of the shuttle (20). At the first position, the limit switch (41) contacts the limit baffle (42) and triggers the stop signal.

6. The explosion-proof straight-line shuttle travel mechanism according to claim 1, characterized in that, The mechanical stop assembly (50) is arranged at at least one end of the shuttle (20) along its own traveling direction; The mechanical stop assembly (50) includes: a pair of stops (51) and stops (52) arranged in pairs; The stop (51) is connected to the shuttle (20), and the stop (52) is disposed on the travel path of the shuttle (20); at least one of the stop (51) and the stop (52) is made of non-metallic material; In the second position, the stop (51) and the stop (52) abut against each other.

7. The explosion-proof straight-line shuttle travel mechanism according to any one of claims 1 to 6, characterized in that, It also includes a track brush (11) connected to the shuttle (20); the track brush (11) is in contact with the ground rail assembly (10).

8. The explosion-proof straight-line shuttle traveling mechanism according to claim 7, characterized in that, It also includes at least two sets of guide wheel assemblies (60), and two sets of the guide wheel assemblies (60) are respectively connected to both ends of the shuttle (20); The guide wheel assembly (60) includes at least one set of guide wheels (61), each set of guide wheels (61) including two guide wheels (61) made of non-metallic material, the two guide wheels (61) being arranged alternately along the side of the shuttle (20) for abutting against the two sides of the ground rail assembly (10) respectively.

9. The explosion-proof straight-line shuttle traveling mechanism according to claim 8, characterized in that, The guide wheel assembly (60) also includes a connecting plate; The connecting plate includes a first part and a second part at an angle, the first part being connected to the end of the shuttle (20), and the second part being parallel to the upper surface of the ground rail assembly (10); the guide wheel (61) is rotatably connected to the second part.

10. The explosion-proof straight-line shuttle travel mechanism according to claim 9, characterized in that, The track brush (11) is connected to the shuttle (20) via the connecting plate, and the track brush (11) is connected to the second part.

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