Double-wheel rail type conveying device

Abstract

The invention discloses a double-wheel rail type conveying device, and relates to the technical field of rail conveying, the double-wheel rail type conveying device comprises a conveying rail, a movable carrying table is slidably connected to the conveying rail, conveying wheels are rotatably embedded in the movable carrying table, and the two conveying wheels are distributed at intervals in the first direction and are in rolling contact with the conveying rail; a first transmission part, a second transmission part and a driving motor are arranged in the movable carrying table, the height of the first transmission part in the second direction is larger than that of the second transmission part in the second direction, and the first transmission part and the second transmission part are in transmission connection through a transmission belt; and through sequential transmission of the second transmission part, the transmission belt and the first transmission part, the rotation motion, in the first direction, output by power of the driving motor is converted into rotation motion, in the third direction, of the two conveying wheels, so that the movable carrying table conveys materials on the conveying track. The rail type conveying device solves the problems that in the prior art, a rail type conveying device is complex in transmission structure and large transmission ratio is difficult to balance.

Description

Technical Field

[0001] This invention relates to the field of rail conveying technology, and more particularly to a two-wheeled rail conveying device. Background Technology

[0002] Conveying devices are mechanical systems used to move materials or products. They are widely used in industrial production and logistics, efficiently transferring materials from one location to another through different transmission methods, greatly improving production efficiency and logistics capabilities. Depending on actual needs, conveying devices employ various technical approaches, such as belt conveyors, chain conveyors, roller conveyors, and track conveyors.

[0003] In existing technologies, track-type conveying devices mainly consist of a track, on which mobile carriers, mobile pallets, and other load-bearing structures are installed to support materials. A motor and transmission structure then work together to enable the movement of these load-bearing structures along the track. These track-type conveying devices have some shortcomings. Firstly, to meet the design requirements of a large transmission ratio, multi-stage transmission structures need to be incorporated into the mobile carrier, increasing the complexity of the transmission structure. Secondly, to reduce manufacturing costs, the transmission structure needs to be simplified, resulting in a lower transmission ratio.

[0004] Therefore, existing track-type conveying devices suffer from complex transmission structures and difficulties in balancing large transmission ratios. Summary of the Invention

[0005] The purpose of this invention is to provide a dual-wheel track-type conveyor device, which solves the problems of complex transmission structure and difficulty in balancing large transmission ratios in existing track-type conveyor devices.

[0006] To achieve this objective, the present invention adopts the following technical solution: A dual-wheel track-type conveying device includes a conveying track arranged along a first direction, a movable platform slidably connected to the conveying track, a conveying wheel rotatably embedded in the movable platform, and two conveying wheels spaced apart along the first direction and rollingly contacting the conveying track. The mobile platform is equipped with a first transmission component, a second transmission component, and a drive motor connected to the second transmission component. The height of the first transmission component along the second direction is higher than the height of the second transmission component along the second direction. The first transmission component and the second transmission component are connected by a transmission belt. Through the sequential transmission of the second transmission component, the transmission belt, and the first transmission component, the rotational motion of the drive motor power output around the first direction is converted into the rotational motion of the two conveying wheels around the third direction, so that the moving platform can convey materials on the conveying track.

[0007] Optionally, both the first transmission member and the second transmission member adopt gear transmission. The first transmission member has a first transmission part, and the second transmission member has a second transmission part arranged parallel to the first transmission part. The transmission belt is wound around the first transmission part and the second transmission part. The first transmission part and the second transmission part have the same diameter, and the first direction, the second direction and the third direction are arranged perpendicular to each other.

[0008] Optionally, the first transmission component includes a first transmission gear and a second transmission gear that are rotatably connected to and meshed with each other within the movable platform, the first transmission part being disposed on the end face of the first transmission gear, and the first transmission part being coaxially disposed with the first transmission gear. The first transmission gear is located between the two second transmission gears. The second transmission gears are coaxially arranged with the conveying wheel and correspond one-to-one. The second transmission gears are used to drive the conveying wheel to rotate around a third direction.

[0009] Optionally, the two second transmission gears have the same axial height along the second direction and are greater than the axial height of the first transmission gear along the second direction. The diameters of the first transmission gear and the conveying wheel are both greater than the diameters of the second transmission gears. The first transmission part and the first transmission gear are integrally formed.

[0010] Optionally, the conveying wheel has a rotating groove on the side near the second transmission gear, the conveying wheel has a first transmission block located in the rotating groove, one end of the second transmission gear is embedded in the rotating groove, and the second transmission gear has a second transmission block located in the rotating groove. When the second transmission gear drives the conveying wheel to roll on the conveying track, the second transmission block abuts against the first transmission block; when the second transmission block separates from the first transmission block, the movements of the conveying wheel and the second transmission gear are independent of each other.

[0011] Optionally, the second transmission component includes a third transmission bevel gear and a fourth transmission bevel gear that mesh with each other. The third transmission bevel gear is rotatably connected within the movable platform. The second transmission part is disposed on the end face of the third transmission bevel gear. The second transmission part and the third transmission bevel gear are coaxially arranged. The fourth transmission bevel gear is mounted on the output shaft of the drive motor.

[0012] Optionally, the diameter of the fourth transmission bevel gear is smaller than the diameter of the third transmission bevel gear, and the third transmission bevel gear and the second transmission part are integrally formed.

[0013] Optionally, the mobile platform includes a first mobile housing and a second mobile housing that are interlocked with each other. The first mobile housing has two spaced-apart first notches, and the second mobile housing has two spaced-apart second notches. The first notches and the second notches are interconnected and correspond one-to-one. The conveying wheel passes through the first notches and the second notches. A battery and a control board are installed between the first movable carrier and the second movable carrier, and the battery, the control board and the drive motor are all electrically connected.

[0014] Optionally, the transmission ratio of the dual-wheel track conveyor is designed using the following method: Step S1: Determine the required total transmission ratio based on the target conveying speed of the moving platform, the rotational speed of the drive motor, and the diameter of the conveying wheel; Step S2: Based on the three-segment transmission chain formed by the second transmission component, the transmission belt, and the first transmission component, the total transmission ratio is factored and the bevel gear tooth ratio of the second transmission component, the diameter ratio of the transmission belt, and the spur gear tooth ratio of the first transmission component are determined respectively; wherein, the diameter ratio of the transmission belt is 1. Step S3: Determine the maximum pitch circle diameter of the first transmission gear, the second transmission gear, the third transmission bevel gear, and the fourth transmission bevel gear based on the internal space dimensions of the moving platform. Step S4: Based on the maximum pitch circle diameter and gear module, calculate the range of the number of teeth for each gear, and derive the selectable range of the bevel gear tooth ratio and the spur gear tooth ratio; Step S5: Within the selectable range of the bevel gear ratio and the spur gear ratio, select the bevel gear ratio and the spur gear ratio such that their product equals the total transmission ratio, and preferentially select the standard number of teeth.

[0015] Optionally, in step S1, the total transmission ratio is calculated using the following formula: ; In the formula: The total transmission ratio is... For the target delivery speed, To drive the motor speed, The diameter of the conveyor wheel; In step S2, the total transmission ratio is calculated using the following formula: ; In the formula: The total transmission ratio is... The number of teeth on the first transmission gear. This represents the number of teeth on the second transmission gear. The number of teeth on the third transmission bevel gear. This represents the number of teeth on the fourth transmission bevel gear.

[0016] Compared with the prior art, the present invention has the following beneficial effects: This invention provides a dual-wheel track-type conveyor device. Two conveyor wheels, spaced apart along a first direction, are rotatably embedded within a mobile platform, ensuring stable support of the mobile platform as it runs on the conveyor track through rolling contact between the wheels and the track. Since the first transmission component is higher than the second transmission component in the second direction and is connected to the second transmission component via a transmission belt, power is transmitted between different height positions. Power output from a drive motor is transmitted sequentially through the second transmission component, the transmission belt, and the first transmission component, effectively converting the rotational motion around the first direction into rotational motion of the two conveyor wheels around a third direction, thereby driving the mobile platform to convey materials on the conveyor track. This structure simplifies the power transmission path, avoids complex structures such as multi-stage gear sets, and reduces the complexity of the transmission structure. Furthermore, the belt drive combined with transmission components arranged at different heights achieves a large transmission ratio while maintaining a simplified transmission structure, thus balancing the requirements of low cost and a large transmission ratio. Therefore, this invention solves the problems of complex transmission structures and difficulty in balancing large transmission ratios in existing track-type conveyor devices. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present 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 only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] The structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0019] Figure 1 This is a three-dimensional structural diagram of a dual-wheel track-type conveying device provided in an embodiment of the present invention; Figure 2 This is a partial structural schematic diagram of a dual-wheel track-type conveying device provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the first internal structure of the moving platform in a dual-wheel track conveying device provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the second internal structure of the moving platform in a dual-wheel track conveyor provided in an embodiment of the present invention; Figure 5 This is a first exploded structural diagram of the second transmission gear and the conveying wheel in a dual-wheel track-type conveying device provided in an embodiment of the present invention; Figure 6 This is a second exploded structural diagram of the second transmission gear and the conveying wheel in a dual-wheel track-type conveying device provided in an embodiment of the present invention.

[0020] Illustration: 10. Conveying track; 20. Moving platform; 21. First moving housing; 211. First notch; 22. Second moving housing; 221. Second notch; 30. Conveying wheel; 31. Rotating groove; 32. First transmission block; 321. First inclined plane; 40. First transmission component; 41. First transmission gear; 411. First transmission part; 42. Second transmission gear; 421. Second transmission block; 4211. Second inclined plane; 50. Second transmission component; 51. Third transmission bevel gear; 511. Second transmission part; 52. Fourth transmission bevel gear; 60. Drive motor; 70. Transmission belt; 80. Battery; 90. Control board. Detailed Implementation

[0021] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0022] In the description of this invention, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component positioned centrally in the connection.

[0023] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0024] This invention provides a dual-wheel track-type conveyor device, which can be applied to scenarios such as industrial material conveying and intelligent curtain opening and closing. Figures 1 to 6 As shown, the device includes a conveying track 10 arranged along a first direction, a movable platform 20 slidably connected to the conveying track 10, and a conveying wheel 30 rotatably embedded in the movable platform 20. The two conveying wheels 30 are spaced apart along the first direction and roll in contact with the conveying track 10. The mobile platform 20 is equipped with a first transmission component 40, a second transmission component 50, and a drive motor 60 connected to the second transmission component 50. The height of the first transmission component 40 along the second direction is higher than the height of the second transmission component 50 along the second direction. The first transmission component 40 and the second transmission component 50 are connected by a transmission belt 70. Through the sequential transmission of the second transmission component 50, the transmission belt 70, and the first transmission component 40, the rotational motion of the drive motor 60 outputting power around a first direction is converted into the rotational motion of the two conveying wheels 30 around a third direction, so that the moving platform 20 can convey materials on the conveying track 10. In this embodiment, the outer wall of the conveying wheel 30 is covered with rubber, which reduces the operating noise of the conveying wheel 30 on the conveying track 10.

[0025] It should be noted that the dual-wheel track conveying device provided by the present invention, by rotatably embedding two conveying wheels 30 arranged at intervals along a first direction within the mobile platform 20, and by ensuring that the conveying wheels 30 roll in contact with the conveying track 10, ensures stable support for the mobile platform 20 when it runs on the conveying track 10. Since the first transmission member 40 is higher than the second transmission member 50 in the second direction and is connected to the second transmission member 50 via a transmission belt 70, power transmission between different height positions is achieved. Through the power output of the drive motor 60, the power is transmitted sequentially through the second transmission member 50, the transmission belt 70, and the first transmission member 40, effectively converting the rotational motion around the first direction into the rotational motion of the two conveying wheels 30 around a third direction, thereby driving the mobile platform 20 to convey materials on the conveying track 10. Using the above structure, on the one hand, the power transmission path is simplified, avoiding the setting of complex structures such as multi-stage gear sets, and reducing the complexity of the transmission structure; on the other hand, by cooperating with the belt drive and the transmission members arranged at different heights, a large transmission ratio can be achieved while ensuring a simplified transmission structure, thus meeting the requirements of low cost and large transmission ratio. Therefore, the present invention solves the problems of complex transmission structure and difficulty in balancing large transmission ratios in existing track-type conveying devices.

[0026] like Figures 1 to 4As shown, both the first transmission member 40 and the second transmission member 50 adopt gear transmission. The first transmission member 40 has a first transmission part 411, and the second transmission member 50 has a second transmission part 511 arranged parallel to the first transmission part 411. The transmission belt 70 is wound around the first transmission part 411 and the second transmission part 511. The first direction, the second direction and the third direction are arranged perpendicular to each other.

[0027] In practical implementation, both the first transmission component 40 and the second transmission component 50 adopt a gear structure, and each has a first transmission part 411 and a second transmission part 511 that are parallel to each other, with the transmission belt 70 wound between them. This structural design ensures that the transmission belt 70 experiences uniform force and a constant transmission ratio during transmission, thus achieving stable power transmission. Since the first, second, and third directions are perpendicular to each other, the rotational motion output by the drive motor 60 around the first direction can be smoothly converted into the rotational motion of the conveyor wheel 30 around the third direction through the cooperation of gears and belts. The transmission path is simple and clear, avoiding multi-stage transmission conversion under complex spatial angles. Therefore, it improves the efficiency and stability of power transmission, reduces the risk of belt slippage or transmission deviation, and maintains a compact and simple structure while ensuring a large transmission ratio, thereby further optimizing the overall transmission performance of the device and solving the problems of complex transmission structures and low transmission efficiency in existing track-type conveying devices.

[0028] like Figures 1 to 4 As shown, the first transmission component 40 includes a first transmission gear 41 and a second transmission gear 42 that are rotatably connected to the movable platform 20 and mesh with each other. The first transmission part 411 is disposed on the end face of the first transmission gear 41, and the first transmission part 411 and the first transmission gear 41 are coaxially arranged. The first transmission gear 41 is located between two second transmission gears 42. The second transmission gears 42 are coaxially arranged and correspond one-to-one with the conveyor wheel 30. The second transmission gears 42 are used to drive the conveyor wheel 30 to rotate around a third direction. In this embodiment, a first rotating shaft and a second rotating shaft are respectively installed inside the movable platform 20. The first transmission gear 41 is rotatably connected to the first rotating shaft, and the second transmission gear 42 is rotatably connected to the second rotating shaft. It is worth mentioning that, through the transmission of the first transmission gear 41 and the second transmission gear 42, the lifting and lowering motion of the transmission belt 70 along the second direction is converted into the rotational motion of the conveyor wheel 30 around a third direction, thereby enabling the movable platform 20 to convey materials along the first direction on the conveying track 10.

[0029] In specific implementation, the drive motor 60 provides driving power, causing the second transmission component 50 to drive the transmission belt 70 to move. The transmission belt 70 drives the first transmission part 411 to move, causing the first transmission part 411 to drive the first transmission gear 41 to rotate. Since the first transmission gear 41 meshes with the second transmission gear 42, the first transmission gear 41 drives the two second transmission gears 42 to rotate. Since the second transmission gear 42 drives the conveyor wheel 30 to rotate around a third direction, it drives the conveyor wheel 30 to move on the conveying track 10, allowing the moving platform 20 to carry materials. By setting the first and second rotating shafts respectively in the moving platform 20, the first transmission gear 41 and the second transmission gear 42 are rotatably connected through independent rotating shafts, which not only ensures the stability and load-bearing capacity of the gear meshing transmission, but also improves the synchronous driving effect of the conveyor wheel 30. Therefore, under the premise of compact structure, reliable linkage rotation of the two conveying wheels 30 is achieved, ensuring the smooth operation of the mobile platform 20 on the conveying track 10, effectively avoiding the problems of large energy loss and poor synchronization caused by the complex multi-stage transmission structure in the prior art.

[0030] like Figures 1 to 4 As shown, the two second transmission gears 42 have the same axial height along the second direction and are greater than the axial height of the first transmission gear 41 along the second direction. The diameters of the first transmission gear 41 and the conveying wheel 30 are both greater than the diameters of the second transmission gears 42. The first transmission part 411 and the first transmission gear 41 are integrally formed.

[0031] In practical implementation, since the two second transmission gears 42 maintain the same axial height along the second direction, and their height is greater than that of the first transmission gear 41, it ensures stable meshing transmission between the first transmission gear 41 and the two second transmission gears 42. This avoids the problem of poor meshing caused by inconsistent axial heights, thereby improving the smoothness and reliability of the transmission process. Furthermore, the diameters of both the first transmission gear 41 and the conveyor wheel 30 are larger than the diameters of the second transmission gears 42, enabling a larger transmission ratio during meshing transmission. This increases the output torque and helps drive the conveyor wheel 30 to achieve stable rotational motion. At the same time, the first transmission unit 411 and the first transmission gear 41 adopt an integrated molding structure design, reducing the number of parts and assembly steps. This avoids transmission errors caused by loosening or wear at the connection points of parts, thereby improving the overall structural compactness, reliability, and service life of the device.

[0032] In summary, the structural design of this embodiment not only optimizes the spatial arrangement of gears, ensuring the stability and efficiency of meshing transmission, but also improves the transmission ratio and structural strength through diameter differences and integral molding, effectively solving the problems of low transmission accuracy, easy loosening of parts and high maintenance costs in the prior art.

[0033] like Figures 1 to 6 As shown, the conveying wheel 30 has a rotating groove 31 on the side near the second transmission gear 42, and the conveying wheel 30 has a first transmission block 32 located in the rotating groove 31. One end of the second transmission gear 42 is embedded in the rotating groove 31, and the second transmission gear 42 has a second transmission block 421 located in the rotating groove 31. When the second transmission gear 42 drives the conveyor wheel 30 to roll on the conveyor track 10, the second transmission block 421 abuts against the first transmission block 32; when the second transmission block 421 separates from the first transmission block 32, the movements of the conveyor wheel 30 and the second transmission gear 42 are independent of each other. In this embodiment, the first transmission block 32 is provided with two first inclined surfaces 321 along its rotation direction, and the second transmission block 421 is provided with two second inclined surfaces 4211 corresponding one-to-one with the two first inclined surfaces 321.

[0034] In practical implementation, when the second transmission gear 42 drives the conveyor wheel 30 to roll on the conveyor track 10, the first transmission block 32 and the second transmission block 421 abut against each other, realizing their linkage transmission. When the first transmission block 32 and the second transmission block 421 separate, the conveyor wheel 30 and the second transmission gear 42 can move independently, thus providing greater flexibility and fault tolerance during device operation and avoiding structural jamming or damage caused by forced linkage. Through the cooperative design of the first inclined surface 321 and the second inclined surface 4211, the first transmission block 32 and the second transmission block 421 can smoothly transition during contact engagement and separation, reducing engagement impact and wear, and improving the smoothness and durability of the linkage process.

[0035] In summary, this embodiment achieves a stable and flexible transmission between the conveying wheel 30 and the second transmission gear 42 through a separable linkage design and an inclined buffer structure. This effectively solves the problems of high transmission rigidity and easy jamming or damage in the prior art, while improving the operational reliability and service life of the conveying device.

[0036] like Figure 3 and Figure 4 As shown, the second transmission component 50 includes a third transmission bevel gear 51 and a fourth transmission bevel gear 52 that are meshed with each other. The third transmission bevel gear 51 is rotatably connected to the movable platform 20. The second transmission part 511 is disposed on the end face of the third transmission bevel gear 51. The second transmission part 511 and the third transmission bevel gear 51 are coaxially arranged. The fourth transmission bevel gear 52 is mounted on the output shaft of the drive motor 60.

[0037] In practical implementation, the second transmission unit 511 is disposed on the end face of the third transmission bevel gear 51 through the meshing connection of the third transmission bevel gear 51 and the fourth transmission bevel gear 52. The power output by the drive motor 60 is smoothly transmitted to the third transmission bevel gear 51 via the fourth transmission bevel gear 52, and then transmitted to the transmission belt 70 via the second transmission unit 511. This structure not only converts the rotational motion of the drive motor 60's power output around the first direction into the lifting motion of the transmission belt 70 along the second direction, but also ensures the coaxial stability of power transmission and reduces transmission errors caused by installation deviations. The conversion of the motor output direction is achieved through bevel gear meshing, eliminating the need for complex intermediate transition mechanisms, making the overall transmission path more compact and concise, reducing the number of parts, reducing energy loss, and improving transmission efficiency. At the same time, since the second transmission unit 511 and the third transmission bevel gear 51 are integrated, additional connecting structures are avoided, enhancing structural strength and durability.

[0038] In summary, this embodiment not only optimizes the spatial arrangement of power input and transmission path, but also improves the smoothness of power transmission and structural reliability, effectively solving the problems of large size and low transmission efficiency caused by the complexity of power steering mechanism in the prior art.

[0039] It is worth mentioning that when this dual-wheel track conveyor is applied to the smart curtain opening and closing scenario, in order to reduce the overall weight and motion inertia of the device, the first transmission gear 41, the second transmission gear 42, the third transmission bevel gear 51 and the fourth transmission bevel gear 52 are all made of plastic injection molding.

[0040] like Figure 3 and Figure 4 As shown, the diameter of the fourth transmission bevel gear 52 is smaller than the diameter of the third transmission bevel gear 51. The third transmission bevel gear 51 and the second transmission part 511 are integrally formed. The diameter of the first transmission part 411 is the same as the diameter of the second transmission part 511.

[0041] In practical implementation, since the diameter of the fourth transmission bevel gear 52 is smaller than that of the third transmission bevel gear 51, the transmission ratio can be amplified during their meshing transmission, increasing the output torque and ensuring the driving force and load-bearing capacity of the subsequent conveying wheel 30 when running on the conveying track 10. Furthermore, the third transmission bevel gear 51 and the second transmission part 511 adopt an integral molding structure, which not only reduces the number of parts and assembly steps, lowers processing and installation errors, but also improves the overall transmission stability and reliability, avoiding performance degradation due to loose connections during use. In addition, the diameters of the first transmission part 411 and the second transmission part 511 are consistent, ensuring that the transmission belt 70 experiences balanced force and consistent tension when running between the two parts, effectively preventing uneven wear or slippage caused by belt diameter differences, thereby ensuring the stability and transmission efficiency of power transmission.

[0042] In summary, this structural design optimizes the transmission ratio through the diameter difference of the bevel gears, improves strength and lifespan through the one-piece molding structure, and enhances the stability and reliability of the transmission belt 70 through the equal diameter design of the transmission part. It effectively solves the problems of insufficient drive, loose parts and easy belt wear in existing track-type conveyor devices.

[0043] like Figures 1 to 4 As shown, the mobile platform 20 includes a first mobile housing 21 and a second mobile housing 22 that are interlocked with each other. The first mobile housing 21 has two spaced first notches 211, and the second mobile housing 22 has two spaced second notches 221. The first notches 211 and the second notches 221 are interconnected and correspond one-to-one. The conveying wheel 30 passes through the first notches 211 and the second notches 221. A battery 80 and a control board 90 are installed between the first movable carrier 21 and the second movable carrier 22. The battery 80, the control board 90, and the drive motor 60 are all electrically connected. In this embodiment, a charging socket for charging the battery 80 is installed on the control board 90.

[0044] In practical implementation, the mobile platform 20 consists of a first mobile housing 21 and a second mobile housing 22 that are interlocked. The interlocking mechanism facilitates assembly and disassembly, simplifying future maintenance and component replacement. The first mobile housing 21 has two spaced-apart first notches 211, and the second mobile housing 22 has two corresponding second notches 221. The first notches 211 and second notches 221 are interconnected, allowing the conveyor wheel 30 to pass through this structure and be installed within the mobile platform 20. This ensures the stable installation of the conveyor wheel 30 while simplifying the installation process and reducing the overall space required, resulting in a more compact device structure. A battery 80 and a control board 90 are installed between the first mobile housing 21 and the second mobile housing 22, forming an electrical connection with the drive motor 60. This provides an independent power source for the drive motor 60 without the need for external power supply, and the control board 90 manages the power and operation, thereby enhancing the device's autonomous operation capability. The control board 90 is also equipped with a charging socket for charging the battery 80, which avoids complicated battery disassembly and assembly operations, making the charging method simpler and more efficient, and further improving the ease of use and continuous working capability of the device.

[0045] In summary, this embodiment achieves the effect of easy installation and compact structure of the conveyor wheel 30 through the modular housing structure and through-hole design. At the same time, the integrated arrangement of the battery 80 and the control board 90 and the charging base design improve the autonomy and ease of use of the conveying device, effectively solving the problems of inconvenient assembly and strong dependence on external power supply in the existing track-type conveying devices.

[0046] In an optional embodiment, the transmission ratio of the dual-wheel track conveyor is designed using the following method: Step S1: Determine the required total transmission ratio based on the target conveying speed of the moving platform 20, the rotational speed of the drive motor 60, and the diameter of the conveying wheel 30; the total transmission ratio is calculated using the following formula: ; In the formula: The total transmission ratio is... The target conveying speed for the mobile platform 20, To drive the motor at a speed of 60, The diameter of the conveyor wheel 30; Step S2: Based on the three-segment transmission chain consisting of the second transmission member 50, the transmission belt 70, and the first transmission member 40, the overall transmission ratio is factored to determine the bevel gear tooth ratio of the second transmission member 50, the diameter ratio of the transmission belt 70, and the spur gear tooth ratio of the first transmission member 40, respectively; wherein, the diameter ratio of the transmission belt 70 is 1, and the diameter ratio of the transmission belt 70 is the diameter ratio of the first transmission part 411 to the second transmission part 511; in step S2, the overall transmission ratio is calculated using the following formula: ; In the formula: The total transmission ratio is... The number of teeth of the first transmission gear 41 The number of teeth on the second transmission gear 42. The number of teeth of the third transmission bevel gear 51. The number of teeth of the fourth transmission bevel gear 52; Specifically, the overall transmission ratio is decomposed using a coprime factor priority method: the ratio of the number of teeth of the bevel gear in the second transmission component 50 to the number of teeth of the spur gear in the first transmission component 40 is prioritized to be coprime or have a low common factor, thereby weakening the resonance and meshing beat frequency superposition caused by repeated meshing pitch and improving smoothness and lifespan. A large transmission ratio value can be achieved by using coprime integer combinations of the ratio of the number of teeth of the bevel gear in the second transmission component 50 to the number of teeth of the spur gear in the first transmission component 40.

[0047] Step S3: Determine the maximum pitch circle diameters of the first transmission gear 41, the second transmission gear 42, the third transmission bevel gear 51, and the fourth transmission bevel gear 52 based on the internal space dimensions of the movable platform 20.

[0048] Specifically, first determine the internal space dimensions of the movable platform 20, especially the space related to the gears. These dimensions can be measured and calibrated using CAD modeling or mechanical design drawings. This step requires ensuring that the arrangement of all gears and their transmission components can be accommodated in the actual space without interference. Specific dimensions include the clearance between gears (to avoid interference and friction) and the gear mounting direction and arrangement.

[0049] Step S4: Based on the maximum pitch circle diameter and gear module, calculate the range of tooth counts for each gear, and derive the selectable range of the bevel gear tooth ratio and the flat gear tooth ratio. In this embodiment, the gear module is a known standard value, usually selected during design. Depending on the design requirements, it may take common standard values ​​such as 2, 2.5, 3, and 4. Assuming that one of the gears has a maximum pitch circle diameter of 120mm, a gear module of 3mm, and a pressure angle of 20 degrees, then the range of tooth counts for this gear is 18~40. Specifically, the pitch circle refers to the circle where the tooth surfaces of two gears contact each other during gear meshing. It is an important parameter in gear geometry design, typically representing the force transmission area during gear meshing. The maximum pitch circle diameter refers to the maximum pitch circle diameter that the gear can handle during design. The choice of this diameter depends on the gear's installation space and actual operating requirements. The gear module is directly related to the pitch circle diameter because they have a close mathematical relationship. The gear module and the number of teeth together determine the gear's size and load-bearing capacity.

[0050] Step S5: Within the selectable range of bevel gear ratio and flat gear ratio, select the bevel gear ratio and flat gear ratio such that their product equals the total transmission ratio, and prioritize the standard number of teeth.

[0051] It should be noted that, firstly, based on the target conveying speed of the moving platform 20, the rotational speed of the drive motor 60, and the diameter of the conveying wheel 30, the required total transmission ratio can be accurately determined, thereby ensuring that the operating speed of the device meets the actual working conditions. Subsequently, the total transmission ratio is factored based on the three transmission chains formed by the second transmission component 50, the transmission belt 70, and the first transmission component 40, and the bevel gear tooth ratio, belt diameter ratio, and flat gear tooth ratio are determined respectively. The diameter ratio of the transmission belt 70 is set to 1, which helps simplify calculations and structural design. Through the factor allocation in step S2, vibration or instability problems in the transmission chain caused by large common factors in the transmission ratio are avoided, thereby improving the stability of the transmission system.

[0052] Furthermore, when determining the maximum pitch circle diameters of the first transmission gear 41, the second transmission gear 42, the third transmission bevel gear 51, and the fourth transmission bevel gear 52, the internal space constraints of the moving platform 20 can be considered to ensure that the gears can be reasonably arranged within the device without interference. Based on the relationship between the maximum pitch circle diameter and the gear module, the range of the number of teeth for each gear can be derived, and the selectable range of the bevel gear tooth ratio and the flat gear tooth ratio can be obtained, thus providing a clear design basis for subsequent parameter selection. Finally, within the selectable range, the standard tooth combination that meets the overall transmission ratio requirement is preferentially selected, which not only ensures the transmission accuracy and reliability of the device performance but also effectively reduces the gear manufacturing and assembly costs and improves the versatility and interchangeability of parts.

[0053] In summary, the transmission ratio design method of this embodiment achieves efficient, stable and low-cost design of the transmission system while taking into account both the target speed requirements and space constraints. It effectively solves the problems of complex transmission ratio design, low standardization and high manufacturing cost of existing track-type conveying devices.

[0054] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. 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. Such 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 dual-wheel track-type conveying device, characterized in that, It includes a conveying track (10) arranged along a first direction, a movable platform (20) slidably connected on the conveying track (10), and a conveying wheel (30) rotatably embedded in the movable platform (20). The two conveying wheels (30) are distributed at intervals along the first direction and roll in contact with the conveying track (10). The mobile platform (20) is provided with a first transmission component (40), a second transmission component (50) and a drive motor (60) connected to the second transmission component (50). The height of the first transmission component (40) along the second direction is higher than the height of the second transmission component (50) along the second direction. The first transmission component (40) and the second transmission component (50) are connected by a transmission belt (70). Through the sequential transmission of the second transmission member (50), the transmission belt (70) and the first transmission member (40), the rotational motion of the power output of the drive motor (60) around the first direction is converted into the rotational motion of the two conveying wheels (30) around the third direction, so that the moving platform (20) can convey materials on the conveying track (10).

2. The dual-wheel track conveyor according to claim 1, characterized in that, Both the first transmission member (40) and the second transmission member (50) adopt gear transmission. The first transmission member (40) has a first transmission part (411), and the second transmission member (50) has a second transmission part (511) arranged parallel to the first transmission part (411). The transmission belt (70) is wound around the first transmission part (411) and the second transmission part (511). The first direction, the second direction and the third direction are arranged perpendicular to each other.

3. The dual-wheel track conveyor according to claim 2, characterized in that, The first transmission component (40) includes a first transmission gear (41) and a second transmission gear (42) that are rotatably connected to the movable platform (20) and mesh with each other. The first transmission part (411) is disposed on the end face of the first transmission gear (41), and the first transmission part (411) and the first transmission gear (41) are coaxially arranged. The first transmission gear (41) is located between the two second transmission gears (42). The second transmission gears (42) are coaxially arranged with the conveying wheel (30) and correspond one-to-one. The second transmission gears (42) are used to drive the conveying wheel (30) to rotate around a third direction.

4. The dual-wheel track conveyor according to claim 3, characterized in that, The two second transmission gears (42) have the same axial height along the second direction and are greater than the axial height of the first transmission gear (41) along the second direction. The diameters of the first transmission gear (41) and the conveying wheel (30) are both greater than the diameters of the second transmission gears (42). The first transmission part (411) and the first transmission gear (41) are integrally formed.

5. The dual-wheel track conveyor according to claim 4, characterized in that, The conveying wheel (30) has a rotating groove (31) on the side near the second transmission gear (42). The conveying wheel (30) has a first transmission block (32) located in the rotating groove (31). One end of the second transmission gear (42) is embedded in the rotating groove (31). The second transmission gear (42) has a second transmission block (421) located in the rotating groove (31). When the second transmission gear (42) drives the conveying wheel (30) to roll on the conveying track (10), the second transmission block (421) abuts against the first transmission block (32); when the second transmission block (421) separates from the first transmission block (32), the movement of the conveying wheel (30) and the second transmission gear (42) is independent of each other.

6. The dual-wheel track conveyor according to any one of claims 3 to 5, characterized in that, The second transmission component (50) includes a third transmission bevel gear (51) and a fourth transmission bevel gear (52) that mesh with each other. The third transmission bevel gear (51) is rotatably connected to the movable platform (20). The second transmission part (511) is disposed on the end face of the third transmission bevel gear (51). The second transmission part (511) and the third transmission bevel gear (51) are coaxially arranged. The fourth transmission bevel gear (52) is mounted on the output shaft of the drive motor (60).

7. The dual-wheel track conveyor according to claim 6, characterized in that, The diameter of the fourth transmission bevel gear (52) is smaller than that of the third transmission bevel gear (51). The third transmission bevel gear (51) and the second transmission part (511) are integrally formed. The diameters of the first transmission part (411) and the second transmission part (511) are the same.

8. The dual-wheel track conveyor according to any one of claims 1 to 5, characterized in that, The mobile platform (20) includes a first mobile housing (21) and a second mobile housing (22) that are interlocked with each other. The first mobile housing (21) has two spaced first notches (211), and the second mobile housing (22) has two spaced second notches (221). The first notches (211) and the second notches (221) are interconnected and correspond one-to-one. The conveying wheel (30) passes through the first notches (211) and the second notches (221). A battery (80) and a control board (90) are installed between the first movable carrier (21) and the second movable carrier (22), and the battery (80), the control board (90) and the drive motor (60) are electrically connected.

9. The dual-wheel track conveyor according to claim 6, characterized in that, The transmission ratio of the dual-wheel track conveyor is designed using the following method, including: Step S1: Determine the required total transmission ratio based on the target conveying speed of the moving platform (20), the rotational speed of the drive motor (60), and the diameter of the conveying wheel (30); Step S2: Based on the three transmission chains formed by the second transmission member (50), the transmission belt (70), and the first transmission member (40), the total transmission ratio is factored and the bevel gear tooth ratio of the second transmission member (50), the diameter ratio of the transmission belt (70), and the spur gear tooth ratio of the first transmission member (40) are determined respectively; wherein, the diameter ratio of the transmission belt (70) is 1; Step S3: Determine the maximum pitch circle diameters of the first transmission gear (41), the second transmission gear (42), the third transmission bevel gear (51), and the fourth transmission bevel gear (52) based on the internal space dimensions of the movable platform (20). Step S4: Based on the maximum pitch circle diameter and gear module, calculate the range of the number of teeth for each gear, and derive the selectable range of the bevel gear tooth ratio and the spur gear tooth ratio; Step S5: Within the selectable range of the bevel gear ratio and the spur gear ratio, select the bevel gear ratio and the spur gear ratio such that their product equals the total transmission ratio, and preferentially select the standard number of teeth.

10. The dual-wheel track conveyor according to claim 9, characterized in that, In step S1, the total transmission ratio is calculated using the following formula: ； In the formula: The total transmission ratio is... For the target delivery speed, For the rotational speed of the drive motor (60), The diameter of the conveyor wheel (30); In step S2, the total transmission ratio is calculated using the following formula: ； In the formula: The total transmission ratio is... The number of teeth of the first transmission gear (41) The number of teeth of the second transmission gear (42) The number of teeth of the third transmission bevel gear (51) The number of teeth of the fourth transmission bevel gear (52).

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