Lightweight leveling robot

Abstract

The utility model discloses a lightweight spreading robot, which relates to the technical field of mechanical automation and comprises a shell, a driving device and two spiral wheel sets. The driving device comprises a driving motor and a rotating shaft which are in transmission connection; the two spiral wheel sets are arranged on the two opposite sides of the shell, each spiral wheel set comprises two spiral wheels and a plurality of shaft sleeves, each spiral wheel is provided with a first shaft hole, each shaft sleeve is provided with a second shaft hole and arranged at the two ends of the corresponding first shaft hole, the second shaft holes of the shaft sleeves are sleeved with the rotating shafts, and gaps are formed between the inner wall faces of the first shaft holes and the outer wall faces of the rotating shafts. According to the light-weight leveling robot, the spiral wheel and the rotating shaft are assembled through the multiple shaft sleeves, the assembling efficiency is improved, a long key groove does not need to be formed in the rotating shaft to achieve connection with the spiral wheel, the diameter of the rotating shaft does not need to be increased, the structural strength of the rotating shaft does not need to be guaranteed, the weight of the rotating shaft can be reduced, and therefore the weight of the whole robot is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical automation, in particular to a lightweight liquidation robot. Background Art

[0002] In the existing granary-leveling robot, the spiral wheel structure for turning the grain is directly mounted on the rotating shaft, and the rotation of the rotating shaft drives the spiral wheel structure to rotate together, thereby realizing the grain turning work of the leveling robot. Usually, a long keyway is provided on the rotating shaft, and a corresponding groove is provided in the part where the spiral wheel and the rotating shaft cooperate, and the two are relatively fixedly connected by a flat key. However, the setting of the long keyway is not convenient for the assembly of the spiral wheel structure, and the opening of the long keyway has a great influence on the strength of the rotating shaft, and the diameter of the rotating shaft needs to be made larger, which increases the weight of the whole machine. At the same time, in order to ensure the structural strength of the spiral wheel, the spiral shaft part where the spiral wheel and the rotating shaft cooperate also usually needs to be made thicker, which further increases the weight of the whole machine. Utility Model Content

[0003] The main purpose of the present invention is to provide a lightweight liquidation robot, aiming to solve at least one problem raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model proposes a lightweight closing robot, which includes a shell, a drive device and two spiral wheel groups; the drive device includes a drive motor and a rotating shaft, the drive motor is arranged in the shell, and the rotating shaft is transmission-connected to the drive motor; the two spiral wheel groups are arranged on opposite sides of the shell, and the spiral wheel group includes two spiral wheels and multiple shaft sleeves, the spiral wheel has a first axial hole, the shaft sleeve has a second axial hole, the shaft sleeve is arranged at both ends of the first axial hole, and the second axial hole of the shaft sleeve is sleeved with the rotating shaft, and there is a gap between the inner wall surface of the first axial hole and the outer wall surface of the rotating shaft.

[0005] In one embodiment, the rotary wheel has a spiral shaft and a spiral blade, the spiral blade is connected to the outer wall of the spiral shaft, the first shaft hole is formed in the spiral shaft, and the first shaft hole and the outer wall of the sleeve are interference fit.

[0006] In one embodiment, a clamping block is provided on the outer wall surface of the shaft sleeve, and a clamping groove is provided on the spiral wheel corresponding to the clamping block, so that the spiral wheel and the shaft sleeve are clamped and interfered with each other.

[0007] In one embodiment, the sleeve is made of aluminum alloy, magnesium-aluminum alloy or PPS.

[0008] In one embodiment, the spiral wheel is made of magnesium-aluminum alloy, PPS or carbon fiber.

[0009] In one embodiment, the lightweight liquidation robot further includes a shaft sleeve protection cover, and the shaft sleeve protection cover is connected to the shaft sleeves provided at both ends of the rotating shaft.

[0010] In one embodiment, the shaft sleeve protection cover is made of aluminum alloy or PPS.

[0011] In one embodiment, the shell includes a front shell and a bottom shell, the front shell is made of plastic, and the bottom shell is made of magnesium-aluminum alloy, PPS or carbon fiber.

[0012] In one embodiment, the driving device further includes a reducer, which is arranged between the two spiral wheels of one of the spiral wheel sets, the reducer is sleeved on the rotating shaft and connected to the motor shaft of the driving motor, and a connecting piece is provided between the reducer and the driving motor, and the material of the connecting piece is aluminum alloy.

[0013] In one embodiment, a camera module is provided in the housing, a camera window is provided in the housing corresponding to the camera module, a camera cover is provided in the camera window, and the camera cover is made of transparent PC material.

[0014] The technical solution of the present invention is to assemble the spiral wheel and the rotating shaft by adopting multiple sleeves. On the one hand, it is convenient to assemble the spiral wheel, further improving the assembly efficiency, and there is no need to open a long keyway on the rotating shaft to achieve connection with the spiral wheel. Therefore, the diameter of the rotating shaft does not need to be increased to ensure its structural strength, which can reduce the weight of the rotating shaft and thus reduce the weight of the whole machine. On the other hand, there is a gap between the inner wall surface of the first shaft hole and the outer wall surface of the rotating shaft. The spiral shaft part of the spiral wheel can be made thinner in wall thickness while ensuring that the original diameter remains unchanged, thereby reducing the use of spiral wheel material, reducing costs and further reducing the weight of the whole machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. 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 the structures shown in these drawings without paying any creative work.

[0016] Figure 1 This is a structural diagram of an embodiment of a lightweight liquidation robot provided by the present invention;

[0017] Figure 2 for Figure 1 An exploded view of the structure of a lightweight liquidation robot;

[0018] Figure 3 For Figure 2 A local enlarged view at C;

[0019] Figure 4 For Figure 1 A sectional view of the lightweight flat warehouse robot from one perspective;

[0020] Figure 5 For Figure 4 A local enlarged view at B;

[0021] Figure 6 For Figure 1 A sectional view of the lightweight flat warehouse robot from another perspective;

[0022] Figure 7 For Figure 6 A local enlarged view at C.

[0023] BRIEF DESCRIPTION OF THE DRAWINGS

[0024] 10. The lightweight flat warehouse robot;

[0025] 100. The shell; 110. The face shell; 120. The bottom shell; 130. The camera window;

[0026] 200. The driving device; 210. The driving motor; 220. The rotating shaft; 230. The speed reducer;

[0027] 300. The spiral wheel set; 310. The spiral wheel; 311. The spiral shaft; 311a. The first shaft hole; 312. The spiral blade; 313. The clamping groove; 320. The shaft sleeve; 320a. The second shaft hole; 321. The clamping block;

[0028] 400. The shaft sleeve protection cover; 500. The connecting piece; 600. The camera module; 700. The camera cover.

[0029] The implementation, functional features and advantages of the utility model will be further described with reference to the drawings in combination with the embodiments. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0031] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0032] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0033] In the existing warehouse-turning robot, the spiral wheel structure for turning grain is directly mounted on the rotating shaft, and the rotation of the rotating shaft drives the spiral wheel structure to rotate together, thereby realizing the grain turning work of the warehouse-turning robot. Usually, a long keyway is provided on the rotating shaft, and a corresponding groove is provided in the part where the spiral wheel and the rotating shaft cooperate, and the two are relatively fixedly connected by a flat key. However, the setting of the long keyway is not convenient for the assembly of the spiral wheel structure, and the opening of the long keyway has a great influence on the strength of the rotating shaft, and the diameter of the rotating shaft needs to be made larger, which increases the weight of the whole machine. At the same time, in order to ensure the structural strength of the spiral wheel, the part of the spiral shaft where the spiral wheel and the rotating shaft cooperate also usually needs to be made thicker, which further increases the weight of the whole machine.

[0034] The utility model proposes a lightweight warehouse-turning robot that can perform efficient grain turning operations inside a granary. The grains can specifically be wheat, rice, red beans, mung beans, millet, etc. The lightweight warehouse-turning robot of the utility model is convenient for assembling the spiral wheel, and the weight of the whole machine is relatively light.

[0035] See also Figure 1 、 Figure 2 and Figure 6In one embodiment of the present utility model, the lightweight liquidation robot 10 includes a shell 100, a driving device 200 and two spiral wheel groups 300; the driving device 200 includes a driving motor 210 and a rotating shaft 220, the driving motor 210 is arranged in the shell 100, and the rotating shaft 220 is transmission-connected to the driving motor 210; the two spiral wheel groups 300 are arranged on opposite sides of the shell 100, the spiral wheel group 300 includes two spiral wheels 310 and a plurality of shaft sleeves 320, the spiral wheel 310 has a first shaft hole 311a, the shaft sleeve 320 has a second shaft hole 320a, the shaft sleeve 320 is arranged at both ends of the first shaft hole 311a, and the second shaft hole 320a of the shaft sleeve 320 is sleeved with the rotating shaft 220, and there is a gap between the inner wall surface of the first shaft hole 311a and the outer wall surface of the rotating shaft 220.

[0036] Specifically, the shell 100 is formed with an installation space for installing the main control module, battery module, camera module 600, drive motor 210, etc. of the lightweight liquidation robot 10; the number of drive motors 210 is set to at least two, and they are respectively installed on opposite sides of the shell 100. The motor shaft of the drive motor 210 passes through the shell 100 and is connected to the rotating shaft 220. It should be noted that the drive motor 210 and the rotating shaft 220 are connected in transmission, and a corresponding transmission mechanism is provided between the two to transmit the driving force generated by the drive motor 210 to the rotating shaft 220, thereby rotating the rotating shaft 220.

[0037] See also Figure 1 and Figure 2 , two spiral wheel groups 300 are respectively arranged on opposite sides of the housing 100, and each spiral wheel group 300 is driven by a drive motor 210. Among them, one spiral wheel group 300 includes two spiral wheels 310 and multiple sleeves 320. The two spiral wheels 310 are formed with a first axial hole 311a, and the sleeves 320 are formed with a second axial hole 320a. The sleeves 320 are arranged at both ends of the first axial hole 311a, that is, the first axial hole 311a is sleeved on the outer wall surface of the sleeves 320, and the spiral wheels 310 and the sleeves 320 are connected together. At the same time, the second axial hole 320a of the sleeve 320 is sleeved on the rotating shaft 220, that is, the second sleeve 320 is relatively fixedly connected to the rotating shaft 220. Since the sleeves 320 are arranged at both ends of the first axial hole 311a, the number of the sleeves 320 is twice the number of the spiral wheels 310.

[0038] See also Figure 1 、 Figure 2 and Figure 4The spiral wheel 310 is connected to the rotating shaft 220 through the shaft sleeve 320 structure, which facilitates the assembly of the spiral wheel 310 and further improves assembly efficiency. Furthermore, there is no need to provide a long keyway on the rotating shaft 220 to connect with the spiral wheel 310. Therefore, the diameter of the rotating shaft 220 does not need to be increased to ensure its structural strength, which can reduce the weight of the rotating shaft 220 and thus reduce the weight of the entire machine. At the same time, the two spiral wheels 310 are mounted on the same rotating shaft 220 through the shaft sleeve 320 structure, eliminating the need to provide a separate corresponding rotating shaft 220 for each spiral wheel 310 structure, further improving assembly efficiency. Furthermore, the single rotating shaft 220 is connected to the drive motor 210, and the single drive motor 210 can drive the two spiral wheels 310 to rotate, eliminating the need for each spiral wheel assembly 300 to be driven by a drive motor 210. This reduces the number of drive motors 210 and reduces costs.

[0039] See also Figure 4 and Figure 5 It is worth mentioning that there is a gap between the inner wall surface of the first shaft hole 311a and the outer wall surface of the rotating shaft 220. That is to say, the spiral wheel 310 structure realizes transmission connection with the rotating shaft 220 through the shaft sleeve 320 structure. The first shaft hole 311a of the spiral wheel 310 does not contact the rotating shaft 220. The spiral shaft 311 part of the spiral wheel 310 can be made thinner while ensuring that the original diameter remains unchanged, thereby reducing the use of materials for the spiral wheel 310, reducing costs and further reducing the weight of the entire machine.

[0040] The technical solution of the present invention is to assemble the spiral wheel 310 and the rotating shaft 220 by adopting multiple shaft sleeves 320. On the one hand, it is convenient to assemble the spiral wheel 310, further improving the assembly efficiency, and there is no need to open a long keyway on the rotating shaft 220 to achieve connection with the spiral wheel 310. Therefore, the diameter of the rotating shaft 220 does not need to be increased to ensure its structural strength, which can reduce the weight of the rotating shaft 220 and thus reduce the weight of the whole machine. On the other hand, there is a gap between the inner wall surface of the first shaft hole 311a and the outer wall surface of the rotating shaft 220. The spiral shaft 311 part of the spiral wheel 310 can be made thinner in thickness while ensuring that the original diameter remains unchanged, thereby reducing the use of materials for the spiral wheel 310, reducing costs and further reducing the weight of the whole machine.

[0041] See also Figure 2 and Figure 4In one embodiment, the rotary wheel has a spiral shaft 311 and a spiral blade 312. The spiral blade 312 is connected to the outer wall of the spiral shaft 311. A first axial hole 311a is formed in the spiral shaft 311. The first axial hole 311a and the outer wall of the sleeve 320 are interference fit. Specifically, the spiral shaft 311 and the spiral blade 312 are integrally formed. In order to prevent the sleeve 320 from falling off from the first axial hole 311a, the outer wall of the sleeve 320 is interference fit with the first axial hole 311a. Furthermore, a clamping block 321 is provided on the outer wall of the sleeve 320. The spiral wheel 310 is provided with a clamping groove 313 corresponding to the clamping block 321. The spiral wheel 310 and the sleeve 320 are clamped and interference fit. The setting of the clamping block 321 and the clamping groove 313 can prevent the sleeve 320 set in the first axial hole 311a from rotating. At the same time, the number of the clamping blocks 321 and the clamping slots 313 can be set to two groups, and the setting of two groups of clamping blocks 321 and clamping slots 313 has a better anti-rotation effect.

[0042] In order to further reduce the weight of the entire machine, the materials for the various components of the entire machine can be selected according to the functions and structural characteristics of each component, such as aluminum alloy, magnesium-aluminum alloy, PPS, carbon fiber, plastic, PC, etc. The advantages of each material are as follows:

[0043] Aluminum alloys offer advantages such as light weight, high strength, excellent thermal and electrical conductivity, corrosion resistance, plasticity, easy machinability, and environmental and energy-saving properties. Specifically, aluminum alloys have a relatively low density of approximately 2.7g / cm³, roughly one-third that of copper (8.9g / cm³) or steel (7.8g / cm³). This low density allows aluminum alloys to significantly reduce overall weight and lower transportation costs. Despite their low density, aluminum alloys possess significant strength, approaching or exceeding that of high-quality steel. This ensures that aluminum alloys maintain structural stability and safety even in applications requiring heavy loads. Aluminum alloys also offer excellent thermal conductivity, with a coefficient of thermal conductivity second only to gold, silver, and copper among metals and three times that of iron. Aluminum alloys also offer high electrical conductivity, though slightly inferior to silver and copper. However, due to their low density, aluminum wires can be lighter and less expensive to transmit the same amount of electricity. Aluminum alloys naturally form a hard, dense oxide film in the atmosphere, which provides excellent corrosion resistance. The corrosion resistance and weather resistance of aluminum alloys can be further improved through further surface treatments such as electrophoretic painting, anodizing, and powder coating. Aluminum alloys have good plasticity and can be formed through a variety of processing techniques such as extrusion, casting, and forging. This flexibility enables aluminum alloys to meet the needs of various complex shapes and structures. At the same time, the easy processing of aluminum alloys also reduces production costs and processing difficulty, and improves production efficiency. Aluminum alloy is a recyclable material, and its recycling and reuse process is relatively simple and low-cost, which helps reduce the demand for natural resources, reduce waste emissions, and is in line with the concepts of environmental protection and sustainable development.

[0044] Magnesium-aluminum alloys have the advantages of low density, high strength, good toughness, good die casting performance, easy processing, corrosion resistance, and recyclability. Specifically, the density of magnesium-aluminum alloys is generally less than 1.8 g / cm3, which makes it have a significant advantage in the field of pursuing lightweight. The lightweight characteristics help to reduce overall weight, improve fuel efficiency, and reduce transportation costs. Despite the low density, the strength of magnesium-aluminum alloys is not low, and in some cases it can approach or exceed some traditional metal materials. This makes magnesium-aluminum alloys still able to maintain the stability and safety of the structure in situations that require to bear large loads. Magnesium-aluminum alloys have good ductility and toughness, and can deform greatly under external force without breaking, which makes magnesium-aluminum alloys able to absorb more energy when impacted, thereby protecting the internal structure from damage. Therefore, magnesium-aluminum alloys are often used to manufacture components that need to withstand impact, such as automobile bodies, aircraft structural components, etc. Magnesium-aluminum alloys have a small heat capacity and a slow solidification speed, which makes them an excellent die casting material. In the die casting process, magnesium-aluminum alloys can maintain good flowability and rapid solidification characteristics, thereby obtaining die castings with fine surface and clear edges. In addition, the die castings of magnesium-aluminum alloys also have high dimensional accuracy and surface quality, which can meet the needs of high-precision machining. Magnesium-aluminum alloys exhibit good cutting and machining performance during processing. Because the hardness of magnesium-aluminum alloys is moderate and the cutting force is small, high cutting speed and inexpensive cutting tools can be used for processing. This not only reduces processing costs, but also improves production efficiency. At the same time, the processing of magnesium-aluminum alloys is relatively simple and does not require complex equipment and processes, further reducing production costs. A dense oxide film can easily form on the surface of magnesium-aluminum alloys, and this oxide film has good corrosion resistance. In addition, through appropriate surface treatment processes such as anodizing and electrophoretic painting, the corrosion resistance of magnesium-aluminum alloys can be further improved. This makes magnesium-aluminum alloys still able to maintain stable performance in humid, corrosive, and other harsh environments. Magnesium-aluminum alloys are a recyclable material, and the process of recycling and regenerating magnesium-aluminum alloys is relatively simple and low in cost, which helps to reduce the demand for natural resources and reduce waste emissions.

[0045] PPS (polyphenylene sulfide) is an engineering plastic with excellent comprehensive properties, including excellent heat resistance, mechanical properties, chemical resistance, electrical properties, and flame retardancy. Specifically, PPS boasts exceptionally high heat resistance, with a heat deformation temperature reaching 260°C and short-term resistance to higher temperatures, making it one of the most heat-resistant engineering plastics. PPS also possesses high strength and rigidity. The flexural modulus of pure PPS reaches 3.8 GPa, while that of inorganic fillers can reach 12.6 GPa, significantly exceeding that of other engineering plastics such as PPO and PC. Glass fiber reinforcement significantly improves PPS's impact strength and tensile strength, increasing by three times and one times, respectively. PPS is extremely resistant to inorganic acids, alkalis, and salts, and no solvent has been found that can dissolve PPS below 200°C. PPS also exhibits outstanding electrical properties, with relatively low dielectric constant and dielectric loss tangent, which remain stable over a wide frequency, temperature, and temperature range. PPS has excellent flame retardancy, with an oxygen index exceeding 44%. Pure PPS plastic, even at a thickness of 0.8mm, reaches UL-94 V-0 flame retardancy. PPS also boasts low molding shrinkage (approximately 0.3%), low water absorption (approximately 0.02%), excellent vibration fatigue resistance, high wear resistance, and self-lubricating properties.

[0046] Carbon fiber boasts high strength, lightweight, and high-temperature and corrosion resistance. Specifically, carbon fiber boasts exceptional strength, reaching up to 10 times that of steel and even exceeding that of some alloys. This high strength allows carbon fiber to excel under high loads. Despite its high strength, carbon fiber boasts a very low density, only about one-quarter that of steel. This lightweight property allows carbon fiber products to maintain high strength while reducing weight, contributing to improved energy efficiency and performance. Carbon fiber exhibits excellent thermal stability, enabling it to operate normally in high-temperature environments. Its smooth surface resists moisture and contaminants, making it highly corrosion-resistant.

[0047] Plastic materials offer advantages such as lightweight, low cost, durability, waterproof and moisture-proof properties, good insulation, ease of processing and molding, and corrosion resistance. Specifically, plastic materials are relatively light, which helps reduce the overall weight of a product. Plastic manufacturing costs are relatively low, primarily due to the abundance of raw materials and ease of processing. Plastic materials are generally durable and can withstand daily wear and corrosion. Plastic materials also have excellent waterproof and moisture-proof properties. Due to their compact molecular structure and resistance to water absorption, plastic products can remain stable even in humid environments. Plastic is a good insulator, effectively blocking electrical current and electromagnetic fields. Plastic materials have excellent plasticity and processability, and can be molded and processed through a variety of processes, including injection molding, extrusion, and blow molding. Most plastic materials are highly resistant to corrosion and do not react with chemicals such as acids and alkalis.

[0048] PC, also known as polycarbonate, is an engineering plastic with excellent overall properties. It offers high light transmittance, high strength and impact resistance, heat and cold resistance, excellent processability, low cost, and lightweight. Specifically, PC boasts a light transmittance of 87% to 91%, combined with both impact and heat resistance, making its overall performance superior to other transparent plastics such as polystyrene and plexiglass. PC boasts exceptionally high impact strength, ranking first among general engineering plastics, and its impact strength is even comparable to that of some metals. PC also boasts high heat resistance, with high glass transition and softening temperatures, allowing for a maximum operating temperature of 135°C. It also exhibits excellent cold resistance, with a brittle temperature of -100°C, allowing for use over a wide temperature range. PC also offers excellent processability and can be processed through a variety of molding processes, including injection molding and extrusion. PC's low molding shrinkage and excellent dimensional stability ensure the precision and stability of finished products. Furthermore, PC sheets can be cut and processed as needed, making installation simple and convenient, saving time and labor costs. PC materials are relatively inexpensive and have a long service life, providing long-term economic benefits. Furthermore, due to their light weight and ease of handling and transportation, they also reduce transportation costs.

[0049] In one embodiment, the material of the sleeve 320 is aluminum alloy, magnesium-aluminum alloy or PPS. The excellent performance of aluminum alloy, magnesium-aluminum alloy or PPS is as described above. Such a setting can further reduce the weight of the sleeve 320 while ensuring the strength of the sleeve 320 itself, thereby reducing the weight of the entire machine.

[0050] In one embodiment, the material of the spiral wheel 310 is magnesium-aluminum alloy, PPS or carbon fiber. The excellent performance of magnesium-aluminum alloy, PPS or carbon fiber is as described above. Similarly, while ensuring the structural strength of the spiral wheel 310 itself, the weight of the spiral wheel 310 can be further reduced, thereby reducing the weight of the entire machine.

[0051] See also Figure 2 and Figure 3 In one embodiment, the lightweight liquidation robot 10 further includes a sleeve protection cover 400 , which is connected to the sleeves 320 provided at both ends of the rotating shaft 220 .

[0052] Specifically, after the two spiral wheels 310 are installed on the rotating shaft 220 through the shaft sleeve 320, the end of the shaft sleeve 320 also needs to be fixed by a nut to prevent it from being detached from the rotating shaft 220. The shaft sleeve protective cover 400 is connected with the shaft sleeve 320, and a cover nut is arranged. In this way, on the one hand, the nut can be protected, preventing the nut from being loosened due to the frictional force of the grain during the working process of the light-weight grain flattening robot 10, thereby affecting the stability of the connection between the shaft sleeve 320 and the rotating shaft 220, and preventing the nut and the shaft sleeve 320 from being detached or loosened from the rotating shaft 220; on the other hand, by connecting the shaft sleeve protective cover 400 with the shaft sleeve 320, the nut and the rotating shaft 220 can also be prevented from rusting due to contact with the humid air in the grain depot, and at the same time, fine impurities in the grain depot can be prevented from entering the rotating shaft 220 through the gap between the nut and the rotating shaft 220 or the gap between the nut and the shaft sleeve 320, or the impurities can be prevented from being stuck in the gap to affect the working of the rotating shaft 220.

[0053] Further, the material of the shaft sleeve protective cover 400 is aluminum alloy or PPS. The excellent properties of aluminum alloy or PPS are described above and will not be repeated here. In this way, the strength of the shaft sleeve protective cover 400 can be guaranteed while the weight of the shaft sleeve protective cover 400 is relatively light, so as not to increase the weight of the whole machine and realize the light weight of the whole machine.

[0054] Please refer to Figure 1 In an embodiment, the shell 100 includes a face shell 110 and a bottom shell 120. The material of the face shell 110 is plastic, and the material of the bottom shell 120 is magnesium-aluminum alloy, PPS, or carbon fiber. Specifically, the face shell 110 and the bottom shell 120 enclose an installation space for installing the main control module, the battery module, the camera module 600, the driving motor 210, and the like of the light-weight grain flattening robot 10. Considering that the bottom shell 120 will be in contact with the grain during the working process of the light-weight grain flattening robot 10, the material of the bottom shell 120 is set to magnesium-aluminum alloy, PPS, or carbon fiber to ensure that the bottom shell 120 has sufficient structural strength, and the material of the face shell 110 is set to plastic because the face shell 110 is usually not in contact with the grain. The excellent properties of plastic, magnesium-aluminum alloy, PPS, or carbon fiber are described above and will not be repeated here. At the same time, the selection of the materials of the face shell 110 and the bottom shell 120 can further reduce the weight of the whole machine, thereby realizing the light weight of the grain flattening robot.

[0055] Please refer to Figure 1 、 Figure 2 and Figure 6 、 Figure 7In one embodiment, the drive device 200 further includes a reducer 230, which is disposed between the two spiral wheels 310 of a spiral wheel assembly 300. The reducer 230 is sleeved with the rotating shaft 220 and connected to the motor shaft of the drive motor 210. A connector 500 is provided between the reducer 230 and the drive motor 210, and the material of the connector 500 is aluminum alloy. Specifically, the drive motor 210 in this embodiment is vertically mounted within the housing 100, that is, the motor shaft of the drive motor 210 extends in a vertical direction, while the extension direction of the rotating shaft 220 is perpendicular to the extension direction of the motor shaft. The configuration of the reducer 230 can change the rotational direction of the torque to meet the working requirements of the lightweight liquidation robot 10. At the same time, the reducer 230 can reduce the rotational speed of the rotating shaft 220 through a precise speed ratio calculation method and the meshing of gears with different numbers of teeth, thereby adjusting the rotational speed of the spiral wheel 310. On the other hand, the reducer 230 can reduce the inertia of the load while reducing the rotational speed. When the motor shaft of the drive motor 210 is connected to the reducer 230, there is a gap between the two due to the structural influence of the drive motor 210 and the reducer 230. In order to prevent food or other foreign matter from entering the housing 100 through the gap between the two during the operation of the lightweight liquidation robot 10, or hindering the operation of the drive motor 210, a connector 500 is provided between the reducer 230 and the drive motor 210 to solve the aforementioned problem. The material of the connector 500 is aluminum alloy. For the specific excellent performance of aluminum alloy, please refer to the above text. By setting the material of the connector 500 to aluminum alloy, while ensuring the structural strength of the connector 500, the weight of the connector 500 can be reduced, thereby achieving the lightweighting of the liquidation robot.

[0056] See also Figure 2 In one embodiment, a camera module 600 is provided in the housing 100, and a camera window 130 is opened in the housing 100 corresponding to the camera module 600. The camera window 130 is provided with a camera cover 700, and the material of the camera cover 700 is transparent PC material. Specifically, in order to observe the working status of the lightweight liquidation robot 10 during operation, the housing 100 is further provided with a camera module 600, and a camera window 130 is opened in the housing 100 corresponding to the camera module 600. A camera cover 700 made of transparent PC material is installed on the camera window 130 to ensure that the camera of the camera module 600 can observe the surrounding environment and working status of the lightweight liquidation robot 10 through the camera cover 700. The specific advantages of the transparent PC material are as described above, which can further achieve the lightweighting of the liquidation robot.

[0057] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A lightweight liquidation robot (10), characterized in that: include: Housing (100); A driving device (200) comprising a driving motor (210) and a rotating shaft (220), wherein the driving motor (210) is disposed in the housing (100), and the rotating shaft (220) is drivingly connected to the driving motor (210); and Two spiral wheel assemblies (300) are arranged on opposite sides of the housing (100), and the spiral wheel assemblies (300) include: Two spiral wheels (310), each having a first shaft hole (311a); A plurality of shaft sleeves (320) are provided, wherein the shaft sleeves (320) have second shaft holes (320a), the shaft sleeves (320) are arranged at both ends of the first shaft hole (311a), and the second shaft holes (320a) of the shaft sleeves (320) are sleeved with the rotating shaft (220), and a gap is provided between the inner wall surface of the first shaft hole (311a) and the outer wall surface of the rotating shaft (220).

2. The lightweight liquidation robot (10) according to claim 1, characterized in that: The spiral wheel (310) has a spiral shaft (311) and a spiral blade (312), the spiral blade (312) is connected to the outer wall surface of the spiral shaft (311), the first shaft hole (311a) is formed in the spiral shaft (311), and the first shaft hole (311a) and the outer wall surface of the sleeve (320) are interference fit.

3. The lightweight liquidation robot (10) according to claim 2, characterized in that: The outer wall surface of the shaft sleeve (320) is provided with a clamping block (321), and the spiral wheel (310) is provided with a clamping groove (313) corresponding to the clamping block (321), and the spiral wheel (310) and the shaft sleeve (320) are clamped and interference-fitted.

4. The lightweight liquidation robot (10) according to claim 1, characterized in that: The material of the shaft sleeve (320) is aluminum alloy, magnesium aluminum alloy or PPS.

5. The lightweight liquidation robot (10) according to claim 1, characterized in that: The material of the spiral wheel (310) is magnesium-aluminum alloy, PPS or carbon fiber.

6. The lightweight liquidation robot (10) according to claim 1, characterized in that: The lightweight close-out robot (10) further includes a shaft sleeve protection cover (400), wherein the shaft sleeve protection cover (400) is connected to the shaft sleeves (320) provided at both ends of the rotating shaft (220).

7. The lightweight liquidation robot (10) according to claim 6, characterized in that: The shaft sleeve protection cover (400) is made of aluminum alloy or PPS.

8. The lightweight liquidation robot (10) according to claim 1, characterized in that: The housing (100) comprises a front shell (110) and a bottom shell (120); the material of the front shell (110) is plastic, and the material of the bottom shell (120) is magnesium-aluminum alloy, PPS or carbon fiber.

9. The lightweight liquidation robot (10) according to claim 1, characterized in that: The driving device (200) further comprises a reducer (230), the reducer (230) being arranged between the two spiral wheels (310) of one spiral wheel assembly (300), the reducer (230) being sleeved on the rotating shaft (220) and connected to the motor shaft of the driving motor (210), a connecting piece (500) being arranged between the reducer (230) and the driving motor (210), and the material of the connecting piece (500) being an aluminum alloy.

10. The lightweight liquidation robot (10) according to claim 1, characterized in that: A camera module (600) is provided in the housing (100), a camera window (130) is provided in the housing (100) corresponding to the camera module (600), and a camera cover (700) is provided in the camera window (130), and the camera cover (700) is made of transparent PC material.

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