Large-transmission-ratio track conveying device and detection method thereof

Abstract

The invention discloses a large-transmission-ratio track conveying device and a detection method thereof. The large-transmission-ratio track conveying device comprises a track part extending in the first direction, a movable carrier and a detection assembly. A motor, an electric control part, a transmission assembly and walking wheels are arranged in an inner cavity of the moving carrier, the motor is arranged at one end of the inner cavity, the electric control part is arranged at the other end of the inner cavity, the transmission assembly is sequentially connected between the motor and the walking wheels through a plurality of transmission parts, and at least two transmission parts coincide in the second direction; the detection assembly comprises a plurality of temperature sensors arranged around the transmission part with the slowest rotating speed. The transmission assembly is arranged between the motor and the electric control part, and the at least two transmission pieces coincide in the second direction, so that the motor, the electric control part and the transmission assembly are compactly installed in the inner cavity, and the utilization rate of the internal space is increased; the temperature sensor in the detection assembly is arranged around a transmission piece, a gap in an inner cavity is fully utilized, the utilization rate of the internal space is further improved, and meanwhile detection is convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of conveying structures, and in particular to a large transmission ratio track conveying device and a detection method thereof. Background Art

[0002] The conveyor structure is a mechanical system used to move materials or products. It is widely used in industrial production and logistics. It efficiently transfers materials from one location to another through different transmission methods, greatly improving production efficiency and logistics capabilities. According to actual needs, the conveyor structure has developed a variety of technical routes, including belt conveyor structure, chain conveyor structure, roller conveyor structure and track conveyor structure.

[0003] In the existing conveying system, taking the track-type conveying structure as an example, it mainly includes a track, and a mobile carrier, a mobile tray and other bearing structures are arranged on the preset track to realize the support of materials, and cooperate with the motor and the transmission structure to realize the movement of the above-mentioned bearing structure along the track. Among them, the transmission structure is determined according to the support requirements. In order to meet the design requirements of a large transmission ratio, it is usually designed as a multi-stage transmission structure, which leads to a larger overall volume of the track-type conveying structure and a more complex internal structure integration. It can only be judged whether parts need to be replaced based on its actual working conditions. Once a fault occurs, it is often not discovered and handled in time, which leads to serious downtime accidents.

[0004] It can be seen that the track-type conveying structure in the prior art has technical problems such as being large in size and difficult to detect. Summary of the invention

[0005] The purpose of the present invention is to provide a track conveying device with large transmission ratio gears and a detection method thereof, so as to solve the technical problems in the prior art that the track conveying structure involving a multi-stage transmission structure is large in size and difficult to detect.

[0006] To achieve this object, the present invention adopts the following technical solutions: A large transmission ratio track conveying device, comprising a track portion extending along a first direction, a moving carrier and a detection component; Among them, the inner cavity of the mobile vehicle is provided with a motor, an electronic control unit, a transmission assembly and a running wheel, the motor is arranged at one end of the inner cavity, the electronic control unit is arranged at the other end of the inner cavity, the transmission assembly is connected from the motor to the running wheel in sequence through a plurality of transmission parts, and at least two transmission parts overlap in the second direction; the detection assembly includes a plurality of temperature sensors arranged around the transmission part with the slowest rotation speed, and the detection assembly is used to evaluate the working condition of the transmission assembly according to the temperature of the temperature sensor.

[0007] Optionally, the transmission assembly includes a worm, a worm wheel, a primary transmission part and a secondary transmission part which are sequentially connected between the motor and the travel wheel; The worm is fixedly connected to the motor shaft of the motor, and the worm wheel is meshed with the worm; the input end of the primary transmission part is coaxially arranged with the worm wheel; the input end of the secondary transmission part is coaxially arranged with the output end of the primary transmission part, and the output end of the secondary transmission part is fixedly connected to the walking wheel; Wherein, the plane where the primary transmission part is located does not overlap with the plane where the secondary transmission part is located.

[0008] Optionally, the primary transmission part includes a first gear, a second gear and a third gear that are meshed in sequence, the first gear is coaxially arranged with the worm gear, and the third gear is coaxially arranged with the input end of the secondary transmission part; the number of teeth of the first gear, the second gear and the third gear increases in sequence.

[0009] Optionally, the secondary transmission part includes a fourth gear, a fifth gear and a sixth gear that are meshed in sequence; the fourth gear is coaxially arranged with the input end of the primary transmission part, and the sixth gear is coaxially arranged with the walking wheel; the number of teeth of the fifth gear is respectively greater than the number of teeth of the fourth gear and the number of teeth of the sixth gear.

[0010] Optionally, the traveling wheel overlaps with the primary transmission part along the third direction.

[0011] A detection method for a large transmission ratio track conveyor device, applied to the large transmission ratio track conveyor device as described above, comprises: Step S100, respectively acquiring temperature values ​​of a plurality of temperature sensors, and calculating an average temperature value of the transmission component with the slowest rotation speed according to the plurality of temperature values; Step S200: determining the working condition of the transmission component according to the average temperature value and a preset evaluation rule.

[0012] Optionally, the evaluation rules include: Step S211: when the average temperature value is greater than the first threshold, it is determined that the transmission component has abnormal wear; Step S212: when the average temperature value is less than the first threshold value and greater than the second threshold value, it is determined that the transmission component is slightly worn or lacks transmission oil; Step S213: When the average temperature value is less than the second threshold, it is determined that the transmission component is operating normally.

[0013] Optionally, before step S200, the method further includes: Step S201, calculating the friction power Pfriction of the transmission part with the slowest rotation speed; Friction power Pfriction= ; is the friction coefficient, T is the torque, is the speed of the slowest transmission part, is the speed of the transmission member meshing with the transmission member being measured, is the radius of the transmission part with the slowest rotation speed, is the radius of the transmission member meshing with the transmission member being measured; Step S202: Calculate the real-time temperature rise value according to the friction power Pfriction and the temperature rise coefficient formula; the temperature rise coefficient formula is: ; in, is the temperature rise value, t is the single continuous working time of the motor, is the thermal resistance coefficient; Step S203: Add the preset first base value and the temperature rise value to obtain a first threshold value; and add the preset second base value and the temperature rise value to obtain a second threshold value.

[0014] Optionally, the high transmission ratio rail conveying device further comprises a humidity sensor disposed in the inner cavity, and the determination of slight wear or lack of transmission oil in the transmission component further comprises: Step S214: Obtain the humidity value of the humidity sensor, and determine whether the humidity value is lower than a preset third threshold: Step S215: If yes, it is determined that the transmission component is slightly worn; Step S216: If not, determine that the transmission component lacks transmission oil.

[0015] Optionally, the number of the temperature sensors is at least four, including a first temperature sensing unit, a second temperature sensing unit, a third temperature sensing unit and a fourth temperature sensing unit; The first temperature sensing unit is located on one side of the running wheel and the motor, the second temperature sensing unit is located on one side of the motor and the last meshed transmission member, the third temperature sensing unit is located on one side of the electric control unit and the last meshed transmission member, and the fourth temperature sensing unit is located on one side of the running wheel and the electric control unit; After step S100, the method further includes: Step S301, respectively acquiring a temperature value T1 of a first temperature sensing unit, a temperature value T2 of a second temperature sensing unit, a temperature value T3 of a third temperature sensing unit, and a temperature value T4 of a fourth temperature sensing unit; Step S302, calculating the temperature value T5 of the transmission part with the slowest rotation speed according to the temperature value T1, the temperature value T2, the temperature value T3, the temperature value T4 and the transmission part temperature calculation formula; ; in, , , , are the thermal conductivity coefficients between the corresponding sensors and the interfering heat sources, respectively.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The high transmission ratio track conveyor device and its detection method provided by the present invention, by arranging the transmission assembly between the motor and the electronic control unit, and making at least two transmission parts overlap in the second direction, the motor, the electronic control unit and the transmission assembly are compactly installed in the inner cavity, which effectively improves the internal space utilization rate; then, the temperature sensor in the detection assembly is arranged around a transmission part, making full use of the gap in the inner cavity, further improving the internal space utilization rate, and facilitating the detection assembly to evaluate the working condition of the transmission assembly according to the temperature of the temperature sensor, prompting possible problems such as wear, poor lubrication or excessive load, thereby achieving early warning of faults. In summary, the present high transmission ratio track conveyor device and its detection method have the advantages of compact structure and convenient detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantive technical significance. Any structural modification, change in proportion or adjustment of size, without affecting the effects and purposes that can be achieved by the present invention, should still fall within the scope of the technical contents disclosed by the present invention.

[0019] Figure 1 A schematic diagram of the overall structure of a large transmission ratio rail conveyor provided by an embodiment of the present invention; Figure 2 A schematic diagram of a first cross-sectional structure of a large transmission ratio rail conveyor provided by an embodiment of the present invention; Figure 3 A second cross-sectional structural schematic diagram of a high transmission ratio rail conveyor provided by an embodiment of the present invention; Illustrations: 100, track part; 200, mobile carrier; 210, motor; 220, electronic control part; 230, transmission assembly; 231, worm; 232, worm wheel; 233, first gear; 234, second gear; 235, third gear; 236, fourth gear; 237, fifth gear; 238, sixth gear; 240, walking wheel; 250, detection space. DETAILED DESCRIPTION

[0020] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] In the description of the present invention, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. It should be noted that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally arranged component at the same time.

[0022] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0023] Embodiment 1: The present embodiment provides a large transmission ratio track conveying device, which can be used in scenarios such as workpiece transportation, material transportation, and smart curtain opening and closing. In the present embodiment, the structure of the large transmission ratio track conveying device is improved to maximize the torque release of the internal motor 210 and meet the design requirements of the large transmission ratio in the smallest possible space, while making the structure simpler and easier to assemble.

[0024] like Figures 1 to 3As shown, the large transmission ratio track conveying device in this embodiment includes a track portion 100 extending along a first direction, a mobile carrier 200 and a detection component; wherein, the inner cavity of the mobile carrier 200 is provided with a motor 210, an electric control unit 220, a transmission component 230 and a running wheel 240, the motor 210 is arranged at one end of the inner cavity, and the electric control unit 220 is arranged at the other end of the inner cavity, so that the transmission component 230 can be arranged in the gap between the motor 210 and the electric control unit 220, and the transmission component 230 is sequentially connected between the motor 210 and the running wheel 240 through a plurality of transmission members, and at least two transmission members overlap in the second direction; the detection component includes a plurality of temperature sensors arranged around the transmission member with the slowest rotation speed, and the detection component is used to evaluate the working condition of the transmission component 230 according to the temperature of the temperature sensor. It should be noted that the electric control unit 220 mainly includes structures such as an electric control board and a battery, which can provide power and control instructions for the motor 210 and the detection component.

[0025] Specifically, the high transmission ratio track conveyor device in this embodiment installs the motor 210, the electric control unit 220 and the transmission component 230 compactly in the inner cavity by arranging the transmission component 230 between the motor 210 and the electric control unit 220, and making at least two transmission parts overlap in the second direction, thereby effectively improving the internal space utilization rate; then, the temperature sensor in the detection component is arranged around a transmission part, making full use of the gap in the inner cavity, further improving the internal space utilization rate, and facilitating the detection component to evaluate the working condition of the transmission component 230 according to the temperature of the temperature sensor, prompting possible problems such as wear, poor lubrication or excessive load, thereby achieving early warning of faults. In summary, the present high transmission ratio track conveyor device has the advantages of compact structure and convenient detection.

[0026] In this embodiment, the transmission assembly 230 includes a worm 231, a worm wheel 232, a primary transmission part and a secondary transmission part which are sequentially connected from the motor 210 to the walking wheel 240; the worm 231 is fixedly connected to the motor shaft of the motor 210, and the worm wheel 232 is meshed with the worm 231; the input end of the primary transmission part is coaxially arranged with the worm wheel 232; the input end of the secondary transmission part is coaxially arranged with the output end of the primary transmission part, and the output end of the secondary transmission part is fixedly connected with the walking wheel 240; wherein, the plane where the primary transmission part is located does not overlap with the plane where the secondary transmission part is located. It can be understood that the worm 231 is fixedly connected to the motor shaft of the motor 210, and the worm wheel 232 is meshed with the worm 231 to form a basic power transmission system; then, the input end of the primary transmission part is coaxially arranged with the worm wheel 232, so that the power continues to be transmitted to the next level; the secondary transmission part is coaxially connected with the output end of the primary transmission part to achieve the final output of power and drive the walking wheel 240 to move. It should be particularly pointed out that the plane where the primary transmission part is located does not overlap with the plane where the secondary transmission part is located, which avoids structural conflicts, makes the spatial layout of the device more compact, and further improves space utilization.

[0027] As a specific implementation, the primary transmission part includes a first gear 233, a second gear 234 and a third gear 235 meshed in sequence, the first gear 233 is coaxially arranged with the worm gear 232, and the third gear 235 is coaxially arranged with the input end of the secondary transmission part; the number of teeth of the first gear 233, the second gear 234 and the third gear 235 increases in sequence. The first gear 233 is coaxially arranged with the worm gear 232 as the starting link of the transmission chain; the second gear 234 meshes with the first gear 233 to continue to transmit power; the third gear 235 is coaxially arranged with the input end of the secondary transmission part, and finally transmits the power to the secondary transmission part to drive the walking wheel 240 to move. Among them, the design of the gear teeth increasing in sequence ensures a step-by-step transmission ratio. This design not only ensures the transmission efficiency, but also can reduce the problem of excessive load caused by a large transmission ratio, avoid the phenomenon of poor gear meshing or excessive wear, thereby improving the working stability and reliability of the system; it can also effectively disperse the pressure during the transmission process and reduce the problem of excessive wear caused by a single gear carrying too much weight. Through reasonable arrangement of the number of teeth, not only the structure of the device is optimized, but also the operating efficiency is improved.

[0028] As a specific embodiment, the secondary transmission part includes a fourth gear 236, a fifth gear 237 and a sixth gear 238 meshed in sequence; the fourth gear 236 is coaxially arranged with the input end of the primary transmission part, and the sixth gear 238 is coaxially arranged with the running wheel 240; the number of teeth of the fifth gear 237 is respectively greater than the number of teeth of the fourth gear 236 and the number of teeth of the sixth gear 238. It can be understood that the fourth gear 236 is coaxially arranged with the third gear 235 to realize synchronous rotation between the two gears, and the fifth gear 237 is the largest among the fourth gear 236, the fifth gear 237 and the sixth gear 238, and the size of the fourth gear 236 and the sixth gear 238 is similar, which means that the fifth gear 237 is the transmission part with the slowest rotation speed, and the fifth gear 237 is not a gear that directly drives the running wheel 240 to rotate, which can effectively disperse the mechanical stress in the power transmission process, reduce the occurrence of gear wear, and avoid the high load situation where the gear with the slowest rotation speed directly bears all the power output, thereby reducing the risk of system instability due to excessive load.

[0029] On the basis of the above-mentioned embodiment, the walking wheel 240 overlaps with the primary transmission part along the third direction, while the secondary transmission part does not overlap with the walking wheel 240 at least partially along the third direction. At the same time, the secondary transmission part is closer to the walking wheel 240, which means that a larger detection space 250 is formed above the walking wheel 240. The detection space 250 can be used to arrange detection components, further improving the space utilization and making the overall structure more compact.

[0030] Embodiment 2: On the basis of the first embodiment, this embodiment further provides a detection method for a large transmission ratio track conveying device, which is applied to a large transmission ratio track conveying device in the first embodiment, and includes: Step S100, respectively obtaining temperature values ​​of a plurality of temperature sensors, and calculating an average temperature value of the transmission component with the slowest rotation speed according to the plurality of temperature values; for the first embodiment, the average temperature value of the fifth gear 237 is obtained, and then the working condition of the entire transmission assembly 230 is indirectly evaluated by evaluating the gear with the largest load; Step S200: determining the working condition of the transmission assembly 230 according to the average temperature value and a preset evaluation rule.

[0031] Specifically, the evaluation rules include: Step S211: when the average temperature value is greater than the first threshold, it is determined that the transmission component 230 has abnormal wear; Step S212: when the average temperature value is less than the first threshold value and greater than the second threshold value, it is determined that the transmission assembly 230 is slightly worn or lacks transmission oil; Step S213: When the average temperature value is less than the second threshold, it is determined that the transmission component 230 is operating normally.

[0032] Furthermore, the high transmission ratio track conveying device further includes a humidity sensor disposed in the inner cavity to determine whether the transmission assembly 230 is slightly worn or lacks transmission oil, and then further includes: Step S214: Obtain the humidity value of the humidity sensor, and determine whether the humidity value is lower than a preset third threshold: Step S215: If yes, it is determined that the transmission assembly 230 is slightly worn; Step S216: If not, it is determined that the transmission assembly 230 lacks transmission oil.

[0033] It is understandable that by arranging temperature sensors around the fifth gear 237, the working temperature of the fifth gear 237 can be accurately monitored, and the working status of the transmission assembly 230 can be reflected in real time. If the temperature of the fifth gear 237 is too high, it means that there may be problems such as excessive wear, poor lubrication or excessive load. The system can immediately warn and avoid the shutdown of the large transmission ratio track conveyor due to failure, thereby improving the stability and operation safety of the equipment. In addition, through the dual monitoring of temperature and humidity, potential faults caused by insufficient lubrication or excessive temperature can be discovered earlier, reducing the risk of unexpected equipment shutdown and improving the reliability of the entire system; when the humidity value is too low, it indicates that the transmission oil of the fifth gear 237 is insufficient, increasing friction and wear, and further exacerbating the temperature increase of the gear. Complementary with temperature monitoring, a more comprehensive fault warning system is formed to ensure that the lubrication condition of the fifth gear 237 is always monitored.

[0034] Based on the above implementation, before step S200, the following steps are further included: Step S201, calculating the friction power Pfriction of the transmission part with the slowest rotation speed; Friction power Pfriction= ; is the friction coefficient, T is the torque, is the speed of the slowest transmission part, is the speed of the transmission member meshing with the transmission member being measured, is the radius of the transmission part with the slowest rotation speed, is the radius of the transmission member meshing with the transmission member being measured; Step S202: Calculate the real-time temperature rise value according to the friction power Pfriction and the temperature rise coefficient formula; the temperature rise coefficient formula is: ; in, is the temperature rise value, t is the single continuous working time of the motor 210, is the thermal resistance coefficient; Step S203: Add the preset first base value and the temperature rise value to obtain a first threshold value; and add the preset second base value and the temperature rise value to obtain a second threshold value.

[0035] It should be noted that the friction coefficient Determined by the material of the above gears; torque T, speed of the slowest transmission part , the speed of the transmission part meshing with the transmission part being measured , the radius of the slowest-speed transmission part , the radius r2 of the transmission member meshing with the transmission member under test is determined by the motor 210 and the transmission assembly 230; then, the single continuous operation of the motor 210 refers to the process in which the walking wheel 240 moves from the previous position to the next position along the track, and the thermal resistance coefficient It depends on the material and shape of the transmission parts. In this embodiment, it is set to 0.05~0.1; the first basic value and the second basic value are determined according to parameters such as actual working conditions, safety factor, ambient temperature, etc. For example, the first basic value can be 45°~48°, and the second basic value can be 58°~60°. When installed in the northern region, the first basic value can be 45° and the second basic value can be 58°.

[0036] On the basis of the above embodiment, the number of temperature sensors is at least four, including a first temperature sensing unit, a second temperature sensing unit, a third temperature sensing unit and a fourth temperature sensing unit; The first temperature sensing unit is located on one side of the running wheel 240 and the motor 210, the second temperature sensing unit is located on one side of the motor 210 and the last meshed transmission member, the third temperature sensing unit is located on one side of the electric control unit 220 and the last meshed transmission member, and the fourth temperature sensing unit is located on one side of the running wheel 240 and the electric control unit 220; After step S100, the method further includes: Step S301, respectively acquiring a temperature value T1 of a first temperature sensing unit, a temperature value T2 of a second temperature sensing unit, a temperature value T3 of a third temperature sensing unit, and a temperature value T4 of a fourth temperature sensing unit; Step S302, according to the temperature values ​​T1, T2, T3, T4 and the transmission component temperature calculation formula, calculate the temperature value T5 of the transmission component with the slowest rotation speed; the use of the temperature calculation formula can further reduce the influence of the self-heating of the motor 210 and the electronic control unit 220, thereby improving the judgment accuracy; ; in, , , , They are the thermal conductivity coefficients between the corresponding sensors and the interfering heat sources respectively. The above thermal conductivity coefficient α only reflects the influence of the motor 210 on the fifth gear 237, and the above thermal conductivity coefficient β only reflects the influence of the electronic control unit 220 on the fifth gear 237. This parameter is affected by multiple parameters such as the distance from the sensor unit to the heat source, the thermal conductivity of the material, the layout of the gearbox, and the path of heat flow. Specifically, it can be measured by experimental measurement, simulation, theoretical calculation, etc. The experimental measurement method measures the temperature changes in different areas of the gearbox by experiment, and combines the known heat source power and material properties to infer the thermal conductivity coefficient. The simulation method can calculate the thermal conductivity coefficient of each position according to the heat source strength, sensor position and material thermal conductivity of the motor 210, the electronic control unit 220 and the transmission component 230; the theoretical calculation method uses Fourier's law to calculate the thermal conductivity coefficient ; is the thermal conductivity of the material in the inner cavity, d is the distance from the motor 210 or the electronic control unit 220 to the sensor unit, and a set of thermal conductivity coefficients that can be selected in this embodiment is =3000W / m 2 K. =2500W / m 2 K. =2750W / m 2 K. =2000W / m 2 ·K. Through the above arrangement, the interference of other heat sources can be reduced more accurately, so that the working condition of the transmission assembly 230 can be more accurately judged from the heat generated by the fifth gear 237 .

[0037] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A large transmission ratio rail conveyor, characterized in that: It comprises a track portion (100) extending along a first direction, a moving carrier (200) and a detection component; The inner cavity of the mobile vehicle (200) is provided with a motor (210), an electric control unit (220), a transmission assembly (230) and a running wheel (240); the motor (210) is arranged at one end of the inner cavity; the electric control unit (220) is arranged at the other end of the inner cavity; the transmission assembly (230) is sequentially connected from the motor (210) to the running wheel (240) through a plurality of transmission members, and at least two transmission members overlap in the second direction; the detection assembly includes a plurality of temperature sensors arranged around the transmission member with the slowest rotation speed; the detection assembly is used to evaluate the working condition of the transmission assembly (230) according to the temperature of the temperature sensor.

2. A large transmission ratio rail conveyor according to claim 1, characterized in that: The transmission assembly (230) comprises a worm (231), a worm wheel (232), a primary transmission part and a secondary transmission part, which are sequentially connected between the motor (210) and the travel wheel (240); The worm (231) is fixedly connected to the motor shaft of the motor (210), and the worm wheel (232) is meshed with the worm (231); the input end of the primary transmission part is coaxially arranged with the worm wheel (232); the input end of the secondary transmission part is coaxially arranged with the output end of the primary transmission part, and the output end of the secondary transmission part is fixedly connected to the walking wheel (240); Wherein, the plane where the primary transmission part is located does not overlap with the plane where the secondary transmission part is located.

3. A large transmission ratio rail conveyor according to claim 2, characterized in that: The primary transmission part comprises a first gear (233), a second gear (234) and a third gear (235) which are meshed in sequence; the first gear (233) is coaxially arranged with the worm gear (232); the third gear (235) is coaxially arranged with an input end of the secondary transmission part; and the number of teeth of the first gear (233), the second gear (234) and the third gear (235) increases in sequence.

4. A large transmission ratio rail conveyor according to claim 2, characterized in that: The secondary transmission part comprises a fourth gear (236), a fifth gear (237) and a sixth gear (238) which are meshed in sequence; the fourth gear (236) is coaxially arranged with the input end of the primary transmission part, and the sixth gear (238) is coaxially arranged with the walking wheel (240); the number of teeth of the fifth gear (237) is greater than the number of teeth of the fourth gear (236) and the number of teeth of the sixth gear (238).

5. A large transmission ratio rail conveying device according to claim 2, characterized in that: The traveling wheel (240) overlaps with the primary transmission part along the third direction.

6. A detection method for a large transmission ratio track conveyor, characterized in that: Applied to a large transmission ratio rail conveyor device as claimed in any one of claims 1 to 5, comprising: Step S100, respectively acquiring temperature values ​​of a plurality of temperature sensors, and calculating an average temperature value of the transmission component with the slowest rotation speed according to the plurality of temperature values; Step S200: determining the working condition of the transmission component according to the average temperature value and a preset evaluation rule.

7. The detection method of a large transmission ratio rail conveyor according to claim 6, characterized in that: The evaluation rules include: Step S211: when the average temperature value is greater than the first threshold, it is determined that the transmission component has abnormal wear; Step S212: when the average temperature value is less than the first threshold value and greater than the second threshold value, it is determined that the transmission component is slightly worn or lacks transmission oil; Step S213: When the average temperature value is less than the second threshold, it is determined that the transmission component is operating normally.

8. The detection method of a large transmission ratio rail conveyor according to claim 7, characterized in that: Before step S200, the method further includes: Step S201, calculating the friction power Pfriction of the transmission part with the slowest rotation speed; Friction power Pfriction= ; is the friction coefficient, T is the torque, is the speed of the slowest transmission part, is the speed of the transmission member meshing with the transmission member being measured, is the radius of the transmission part with the slowest rotation speed, is the radius of the transmission member meshing with the transmission member being measured; Step S202: Calculate the real-time temperature rise value according to the friction power Pfriction and the temperature rise coefficient formula; the temperature rise coefficient formula is: ； in, is the temperature rise value, t is the single continuous working time of the motor, is the thermal resistance coefficient; Step S203: Add the preset first base value and the temperature rise value to obtain a first threshold value; and add the preset second base value and the temperature rise value to obtain a second threshold value.

9. The detection method of a large transmission ratio rail conveyor according to claim 6, characterized in that: The high transmission ratio rail conveying device further includes a humidity sensor disposed in the inner cavity, and the determination of whether the transmission component is slightly worn or lacks transmission oil further includes: Step S214: Obtain the humidity value of the humidity sensor, and determine whether the humidity value is lower than a preset third threshold: Step S215: If yes, it is determined that the transmission component is slightly worn; Step S216: If not, determine that the transmission component lacks transmission oil.

10. The detection method of a large transmission ratio rail conveyor according to claim 6, characterized in that: The number of the temperature sensors is at least four, including a first temperature sensing unit, a second temperature sensing unit, a third temperature sensing unit and a fourth temperature sensing unit; The first temperature sensing unit is located on one side of the running wheel and the motor, the second temperature sensing unit is located on one side of the motor and the last meshed transmission member, the third temperature sensing unit is located on one side of the electric control unit and the last meshed transmission member, and the fourth temperature sensing unit is located on one side of the running wheel and the electric control unit; After step S100, the method further includes: Step S301, respectively acquiring a temperature value T1 of a first temperature sensing unit, a temperature value T2 of a second temperature sensing unit, a temperature value T3 of a third temperature sensing unit, and a temperature value T4 of a fourth temperature sensing unit; Step S302, calculating the temperature value T5 of the transmission part with the slowest rotation speed according to the temperature value T1, the temperature value T2, the temperature value T3, the temperature value T4 and the transmission part temperature calculation formula; ； in, , , , are the thermal conductivity coefficients between the corresponding sensors and the interfering heat sources, respectively.

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