Structure for unloading bamboo by turning over and device for unloading bamboo

Abstract

The application discloses a turnover bamboo unloading structure and a bamboo unloading device, and belongs to the technical field of bamboo conveying. The unloading structure comprises a bamboo unloading part, an internal space of the bamboo unloading part is consistent with a bamboo conveying direction, the bamboo unloading part comprises a fixed half cylinder and a turnover half cylinder, the turnover half cylinder has a turnover track relative to the fixed half cylinder, the turnover half cylinder forms a closed state with the fixed half cylinder on the turnover track and a separated state, a turnover power part is used for providing turnover power and comprises a turnover motor, and a power transmission part is used for transmitting power to the turnover half cylinder to realize turnover. The turnover bamboo unloading structure realizes the following through a relatively simple mechanical structure: when being closed, the turnover bamboo unloading structure provides necessary channel guarantee for bamboo conveying downhill, and through simple turnover operation, the turnover bamboo unloading structure efficiently and reliably completes the unloading task of the bamboo, and effectively solves the technical problem of fast and reliable unloading of the bamboo after the bamboo goes downhill.

Description

Technical Field

[0001] This utility model belongs to the field of bamboo material conveying technology, specifically relating to a simple, efficient and reliable bamboo unloading structure and a bamboo unloading device using the bamboo unloading structure. Background Technology

[0002] Moso bamboo, as a fast-growing and biodegradable high-quality natural material, has wide application and economic value in many fields such as construction, furniture, papermaking, and medicine. However, in major moso bamboo producing areas in my country, such as economically developed regions like Zhejiang, the economic model of harvesting moso bamboo from the mountains is facing severe challenges due to the rapid increase in labor costs year by year. In recent years, the labor cost of cutting down moso bamboo from the mountains and transporting it down has exceeded the market value that the bamboo itself can generate. This price inversion has led farmers in bamboo-producing areas to believe that cutting down moso bamboo is unprofitable, and therefore they have abandoned the transportation, leaving it to die naturally.

[0003] Moso bamboo has a specific lifespan, typically dying naturally in large patches after about 13 years of growth. The direct consequence of farmers abandoning logging is that once lush green bamboo mountains are now covered with patches of yellow, dead bamboo forests formed by the withering and death of the bamboo. This not only results in a huge waste of precious natural resources but also has a negative visual and ecological impact on the local green landscape, running counter to the concept of sustainable development.

[0004] In conclusion, there is an urgent need for an innovative technical solution, such as using pipelines to transport bamboo from high mountains to the foot of the mountain by the bamboo's own weight and inertia. However, how to unload the bamboo after it is brought down the mountain in a simple, fast, and reliable manner is a technical problem that urgently needs to be solved. Utility Model Content

[0005] This utility model provides a simple, easy-to-operate, efficient and reliable bamboo unloading structure and bamboo placement device for bamboo harvesting.

[0006] The technical solution of this utility model is based on the problems of cumbersome and inconvenient unloading operation and unstable performance of high-altitude bamboo.

[0007] The specific technical solution is explained below:

[0008] The flip-over unloading structure includes:

[0009] The bamboo unloading section has an internal space that conforms to the bamboo conveying direction. The bamboo unloading section includes a fixed half-cylinder and a flipping half-cylinder that form a split cylindrical structure. The flipping half-cylinder has a flipping trajectory relative to the fixed half-cylinder. The flipping half-cylinder forms an enclosed state and a separated state with the fixed half-cylinder on the flipping trajectory. In the separated state, an opening that conforms to the axial direction of the cylindrical structure is formed between the flipping half-cylinder and the fixed half-cylinder.

[0010] A flipping power unit, used to provide the power for flipping, includes a flipping motor;

[0011] A power transmission unit is used to transmit the power to the tilting half-cylinder to achieve tilting.

[0012] In a further embodiment, the power transmission unit includes at least one drive shaft and a linkage; the flipping power unit drives the drive shaft to rotate around its own axis; the drive shaft drives the flipping half-cylinder to flip through the linkage.

[0013] In a preferred embodiment, the linkage is a rigid component, with one end fixed to the drive shaft and the other end fixed to the tilting half-cylinder.

[0014] In a preferred embodiment, the number of linkage components is several, and the several linkage components are spaced apart along the axial direction of the transmission shaft.

[0015] In a further embodiment, the linkage includes a drive shaft connection, a tilting half-cylinder connection, and a connecting arm;

[0016] The drive shaft connecting part is sleeved and fixed on the drive shaft, and the flipping half-cylinder connecting part is fixed on the flipping half-cylinder by a side wall that matches the outer wall contour of the flipping half-cylinder. The two ends of the connecting arm are respectively fixed to the drive shaft connecting part and the flipping half-cylinder connecting part.

[0017] In a preferred embodiment, there are two drive shafts, and the power output portion of the flip motor is located between the two drive shafts.

[0018] In a further embodiment, a speed reducer is also included, through which the power of the reversing motor is applied to the drive shaft.

[0019] In a further embodiment, the power output shaft of the reducer is fixedly connected to the end of the transmission shaft via a shrink sleeve.

[0020] In a further embodiment, the end of the drive shaft that is not connected to the reducer is rotatably connected to a bearing.

[0021] The bamboo unloading device uses the flipping and unloading structure described in any of the above technical solutions to unload the bamboo.

[0022] In summary, the technical solution described in this utility model has the following main beneficial effects:

[0023] Compared with the existing technology, the technical solution of this utility model can provide a stable and continuous channel for the transportation of bamboo from high places down the mountain in the closed state through simple opening and closing actions, and can also achieve rapid and smooth unloading of bamboo by controlling the flipping when unloading is required.

[0024] Meanwhile, this bamboo unloading device can carry out bamboo unloading operations efficiently and at low cost, and its performance is stable and reliable, making it particularly suitable for bamboo-producing areas where labor costs are high.

[0025] Further or more detailed beneficial effects will be described in conjunction with specific embodiments in the detailed implementation. Attached Figure Description

[0026] Figure 1 This is a structural schematic diagram of the bamboo-releasing device in use in a specific implementation embodiment;

[0027] Figure 2 This is a three-dimensional structural diagram of the bamboo-releasing device in a specific implementation method;

[0028] Figure 3 yes Figure 2 Enlarged view of the structure of area A;

[0029] Figure 4 yes Figure 2 Enlarged view of the structure of area B;

[0030] Figure 5 yes Figure 2 Enlarged view of the C-region structure;

[0031] Figure 6 This is a schematic diagram of the axial cross-sectional structure of the bamboo-releasing device on the drive shaft in a specific embodiment, with the fixed half-tube and the flipping half-tube in a closed state.

[0032] Figure 7 This is a schematic diagram of the axial cross-sectional structure of the bamboo-releasing device on the drive shaft in a specific embodiment, with the fixed half-tube and the flipping half-tube in the open state.

[0033] Figure label:

[0034] a: Location for placing bamboo on the mountain; b: Bamboo placement pipe; c: Hillside or valley; d: Bamboo placement device; e: Bamboo placement platform; f: Recycled bamboo.

[0035] 2.1: Unloading the bamboo section; 2.11: Fixing the half-tube; 2.12: Flipping the half-tube;

[0036] 2.2: Tilting power unit; 2.21: Tilting motor;

[0037] 2.3: Power transmission part; 2.31: Drive shaft; 2.32: Linkage component; 2.32a: Drive shaft connection part; 2.32b: Tilting half-cylinder connection part; 2.32c: Connecting arm; 2.33: Reducer; 2.34: Expansion sleeve; 2.35: Bearing. Detailed Implementation

[0038] The present invention will be further explained in conjunction with the embodiments:

[0039] The core technical problem faced by the technical solution of this application embodiment stems from the inventor's accurate understanding of the prior art. Therefore, how to overcome the cumbersome and inconvenient operation of unloading high-altitude bamboo and its unstable performance is a technical problem that the inventor urgently needs to solve.

[0040] It should be noted that the embodiments do not constitute a limitation on the scope of protection of the claims of this utility model. All technical solutions that can be reasonably expected by those skilled in the art based on the technical concepts provided / proved by the embodiments should be covered within the scope of protection of the claims of this utility model.

[0041] The implementation method is detailed below:

[0042] This embodiment relates to a bamboo unloading structure for transporting bamboo from high-altitude areas downwards, aiming to solve the problems of cumbersome and inconvenient bamboo unloading operations and unstable performance in existing technologies. The technical solution of this invention will be described in detail below through specific embodiments.

[0043] Please refer to the attached document. Figure 1 , 2 5-7. In this embodiment, the basic components of the bamboo unloading structure mainly include an unloading section 2.1, a flipping power section 2.2, and a power transmission section 2.3. The unloading section 2.1 has an internal space designed to conform to the direction of bamboo transport from high to low. The unloading section 2.1 itself consists of a fixed half-cylinder 2.11 and a flipping half-cylinder 2.12, forming a pair of open cylindrical structures. The flipping half-cylinder 2.12 can move relative to the fixed half-cylinder 2.11, and its movement trajectory is a flipping motion. Through this flipping motion, the flipping half-cylinder 2.12 can form an enclosed state with the fixed half-cylinder 2.11 in one position, and a separated state with the fixed half-cylinder 2.11 in another position. In the separated state, an opening is formed between the flipping half-cylinder 2.12 and the fixed half-cylinder 2.11, which is aligned with the axial direction of the cylindrical structure and faces downward. The flipping power section 2.2 includes a flipping motor 2.21, which provides the power required to drive the flipping half-cylinder 2.12 to flip. The power transmission unit 2.3 serves as an intermediate mechanism, responsible for effectively transmitting the power generated by the flipping motor 2.21 to the flipping half-cylinder 2.12, thereby ultimately realizing its flipping action.

[0044] When the flipping half-cylinder 2.12 and the fixed half-cylinder 2.11 in the bamboo unloading section 2.1 are in a closed state, they together present a hollow, elongated cylindrical structure. This structure provides a continuous and smooth passage for the slender, cylindrical bamboo material transported down from a higher mountain by its own weight and inertia. When unloading the bamboo, the flipping half-cylinder 2.12 flips relative to the fixed half-cylinder 2.11, creating a downward-facing opening between them. Crucially, this opening aligns with the axial direction of the elongated cylinder, that is, with the length of the bamboo itself. This design allows the bamboo, after being transported down the mountain and properly buffered, to fall smoothly through this axial opening. Therefore, this flipping unloading structure, through a relatively simple opening and closing mechanism, cleverly achieves both providing the necessary passage for the bamboo's descent when closed and efficiently and reliably completing the unloading task with minimal structural changes through a simple flipping operation, effectively solving the technical challenge of rapid and reliable unloading of bamboo after it descends the mountain.

[0045] Please continue to refer to the appendix. Figure 1 , 2 In further embodiments, 5-7, the power transmission unit 2.3 includes several coaxially arranged drive shafts 2.31. The power output portion of the flipping motor 2.21 is located between two adjacent drive shafts 2.31. This arrangement allows the flipping motor 2.21 to simultaneously drive the drive shafts 2.31 on both sides to rotate around their respective axes. The rotational motion of the drive shafts 2.31 is then transmitted through the linkage 2.32 and converted into the flipping motion of the flipping half-cylinder 2.12. This power transmission method has significant advantages; the drive shafts 2.31 can be designed to be arranged parallel to the long cylindrical unloading section 2.1, thereby saving radial space and making the overall equipment more compact. The linkage 2.32 plays a crucial role here, effectively linking the axial rotational motion of the drive shafts 2.31 with the required flipping motion of the flipping half-cylinder 2.12. Of particular importance is the design of placing the tilting motor 2.21 between two adjacent drive shafts 2.31, which effectively avoids the energy attenuation problem that may occur when power is output from one end of a single long drive shaft. If power is only input from one end of the drive shaft, due to the long shaft, torque will attenuate during transmission, which may cause the speed of the end of the drive shaft closer to the motor to be inconsistent with the speed of the end farther from the motor, affecting the synchronicity and smoothness of the tilting half-cylinder 2.12. In this embodiment, the tilting motor 2.21 is located in the middle, which is equivalent to dividing the total transmission length into two shorter segments, significantly reducing energy loss and uneven speed caused by excessive transmission distance, and ensuring the efficiency and stability of power transmission.

[0046] Please continue to refer to the appendix. Figure 1 , 2In further embodiments, 5-7, the linkage 2.32 is a rigid component, such as a stainless steel component. This means that the linkage 2.32 itself deforms very little when subjected to force. One end is firmly connected (e.g., by welding, bolting, or integral molding) to the drive shaft 2.31, and the other end is equally firmly connected to the tilting half-cylinder 2.12. Using a rigid component as the linkage 2.32 ensures a more precise and reliable transmission of power from the drive shaft 2.31 to the tilting half-cylinder 2.12. The rigid connection avoids the elastic deformation, hysteresis, or transmission gap that may exist in flexible connections, thereby accurately converting the rotation angle and torque of the drive shaft 2.31 into the tilting angle and tilting force of the tilting half-cylinder 2.12, meeting the requirements of control precision and timely response for the tilting action.

[0047] Please continue to refer to the appendix. Figure 1 , 2 In further embodiments, 5-7, to transmit power more evenly and stably, the number of linkages 2.32 is set to several. These linkages 2.32 are distributed at certain intervals along the axial direction of the drive shaft 2.31. This spaced arrangement can transmit the rotational force of the drive shaft 2.31 to multiple different axial positions of the tilting half-cylinder 2.12 more evenly. This design, combined with the typically integrally molded and rigid tilting half-cylinder 2.12, can produce a synergistic effect. The spaced linkages 2.32 provide multiple power input points, while the rigid, integrally molded tilting half-cylinder 2.12, by utilizing its own structural integrity and rigidity, can automatically correct or balance the slight deviations in the degree of tilting that may exist at each linkage point due to minor differences in manufacturing, installation, or load, thereby ensuring that the entire tilting half-cylinder 2.12 maintains consistency and stability of movement during the tilting process, avoiding local jamming or deformation.

[0048] Please refer to the attached document as well. Figure 4In a further embodiment, the linkage 2.32 can be further subdivided into three main parts: a drive shaft connection 2.32a, a tilting half-cylinder connection 2.32b, and a connecting arm 2.32c. The drive shaft connection 2.32a is typically designed to include a ring or other adaptable shape, fitted and fixed (e.g., by set screws or interference fit) to the drive shaft 2.31, ensuring synchronous rotation with the drive shaft. The tilting half-cylinder connection 2.32b is designed to fit the contour of the outer wall of the tilting half-cylinder 2.12, such as a plate-like structure with a certain curvature, allowing it to be tightly fixed (e.g., welded or bolted) to the outer surface of the tilting half-cylinder 2.12 via corresponding sidewalls. The connecting arm 2.32c acts as a connecting bridge, with its two ends fixed to the drive shaft connection 2.32a and the tilting half-cylinder connection 2.32b, respectively. The linkage component 2.32 is implemented by decomposing it into three parts, which facilitates the independent processing and manufacturing of each part according to its functional requirements. The most suitable materials and processes can be selected to make specific shapes. For example, the drive shaft connection part 2.32a focuses on the reliability of the connection with the shaft, the connecting arm 2.32c focuses on the structural strength and rigidity, and the tilting half-cylinder connection part 2.32b focuses on the fit with the outer wall of the half-cylinder. Finally, these three parts are combined and fixed into a complete and reliable linkage component by welding, bolting, or other methods. This improves the manufacturability and ease of assembly.

[0049] Please continue to refer to the appendix. Figure 1 , 2 In preferred embodiments (5-7), the number of drive shafts 2.31 is specifically set to two. The power output section of the flipping motor 2.21 is correspondingly located between these two drive shafts 2.31. Generally speaking, the configuration of two drive shafts 2.31 is sufficient to balance the required conveying length (i.e., the axial length of the unloading section) of the bamboo unloading device and the control of power torque transmission attenuation. This design ensures sufficient operating space while controlling the length of a single drive shaft within a reasonable range, effectively leveraging the advantage of "dividing the transmission length in two to reduce energy attenuation," and avoiding the structural complexity and increased cost caused by using too many drive shafts.

[0050] Please continue to refer to the appendix. Figure 1 , 2In further embodiments, such as 5-7, the bamboo-unloading structure may also include a speed reducer 2.33. The power output from the flipping motor 2.21 is first transmitted to the speed reducer 2.33, and after being reduced in speed by the speed reducer 2.33, it acts on the drive shaft 2.31. By introducing the speed reducer 2.33, it is easier to obtain a more adjustable speed of the drive shaft 2.31 that meets the actual working requirements. Motors typically have high speeds and low torques, and direct drive may not match the requirements of the flipping action. The speed reducer 2.33 can reduce the speed and increase the output torque, thereby allowing the operator to indirectly obtain the most suitable flipping speed of the flipping half-cylinder 2.12 by selecting a speed reducer with an appropriate speed ratio or adjusting the motor speed according to the specifications of the bamboo, the conveying speed, and other actual conditions. This ensures bamboo unloading efficiency while avoiding impact or jamming caused by excessively fast or slow speeds.

[0051] Please continue to refer to the appendix. Figure 1 , 2 In further embodiments, 5-7, the power output shaft of the reducer 2.33 and the end of the drive shaft 2.31 are fixedly connected using a shrink sleeve 2.34. The shrink sleeve 2.34 is a common mechanical connecting element. By applying axial clamping force to it, its inner hole contracts to grip the drive shaft 2.31, and its outer circle expands to press into or mate with the connecting hole of the reducer output shaft, thereby achieving a keyless connection and synchronous rotation between the two shafts. This connection method has advantages such as good alignment, large torque transmission, convenient installation and disassembly, and no backlash. It is a relatively reliable and commonly used synchronous rotation connection solution, ensuring efficient and smooth power transmission from the reducer 2.33 to the drive shaft 2.31.

[0052] Please refer to the attached document as well. Figure 3 In a further embodiment, the end of the drive shaft 2.31 not connected to the reducer 2.33 (i.e., the free end or the far end) is supported by a rotatable connection to a bearing 2.35. The bearing 2.35 is mounted on a fixed support or frame. The bearing 2.35 provides reliable radial support to this end of the drive shaft 2.31, preventing excessive deflection due to its own weight or workload, and ensuring the stability of its rotational axis. The design of the bearing 2.35 also allows the drive shaft 2.31 to rotate freely within its bore with almost no additional rotational resistance. Finally, by selecting a suitable bearing type (such as a deep groove ball bearing) and applying appropriate lubrication, the frictional resistance during the rotation of the drive shaft 2.31 can be minimized, thereby reducing the load on the reversing motor 2.21 and improving the mechanical efficiency and service life of the entire transmission system.

[0053] In a further embodiment, the bamboo unloading device uses the flipping unloading structure described in any of the above embodiments to unload the bamboo transported down from the mountain. When using this bamboo unloading device, the bamboo is placed into the bamboo unloading pipe b from the bamboo unloading position a on the mountain, passes through the hillside or valley c to reach the bamboo unloading device d, which is set on the bamboo unloading platform e, and the recovered bamboo f can be placed next to it.

[0054] This bamboo unloading device inherits the advantages of the tilting unloading structure. Its unloading section 2.1 provides a stable and continuous channel for transporting bamboo downhill when closed, through simple opening and closing movements. When unloading is required, the tilting power section 2.2 and power transmission section 2.3 drive the tilting half-cylinder 2.12 to tilt, achieving rapid and smooth unloading of bamboo with simple operation and minimal mechanical changes. The entire device has a reasonable structure, reliable operation, and can perform bamboo unloading operations efficiently and at low cost. Its stable and reliable performance makes it particularly suitable for bamboo-producing areas where labor costs are high.

[0055] In the description of this specification, the references to terms such as "embodiment," "basic embodiment," "preferred embodiment," "other embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0056] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0057] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A flip-over bamboo unloading structure, characterized in that: Including: The bamboo unloading section (2.1) has an internal space that conforms to the bamboo conveying direction. The bamboo unloading section (2.1) includes a fixed half-cylinder (2.11) and a flipping half-cylinder (2.12) that form a split cylindrical structure. The flipping half-cylinder (2.12) has a flipping trajectory relative to the fixed half-cylinder (2.11). The flipping half-cylinder (2.12) forms an enclosed state and a separated state with the fixed half-cylinder (2.11) on the flipping trajectory. In the separated state, an opening that conforms to the axial direction of the cylindrical structure is formed between the flipping half-cylinder (2.12) and the fixed half-cylinder (2.11). The flipping power unit (2.2) is used to provide the power for flipping, including a flipping motor (2.21). The power transmission unit (2.3) is used to transmit the power to the flipping half-cylinder (2.12) to achieve flipping.

2. The flipping and unloading bamboo structure according to claim 1, characterized in that: The power transmission unit (2.3) includes at least one drive shaft (2.31) and a linkage (2.32); the flipping power unit (2.2) drives the drive shaft (2.31) to rotate around its own axis; the drive shaft (2.31) drives the flipping half cylinder (2.12) to flip through the linkage (2.32).

3. The flipping and unloading bamboo structure according to claim 2, characterized in that: The linkage component (2.32) is a rigid component, with one end fixed to the transmission shaft (2.31) and the other end fixed to the tilting half-cylinder (2.12).

4. The tipping and unloading bamboo structure according to claim 3, characterized in that: The number of linkage components (2.32) is several, and the several linkage components (2.32) are spaced apart along the axial direction of the transmission shaft (2.31).

5. The tipping and unloading bamboo structure according to claim 3 or 4, characterized in that: The linkage component (2.32) includes a drive shaft connection part (2.32a), a tilting half-cylinder connection part (2.32b), and a connecting arm (2.32c). The drive shaft connecting part (2.32a) is sleeved and fixed on the drive shaft (2.31). The flip half-cylinder connecting part (2.32b) is fixed on the flip half-cylinder (2.12) by a side wall that matches the outer wall contour of the flip half-cylinder (2.12). The two ends of the connecting arm (2.32c) are respectively fixed to the drive shaft connecting part (2.32a) and the flip half-cylinder connecting part (2.32b).

6. The flipping and unloading bamboo structure according to claim 2, characterized in that: There are two drive shafts (2.31), and the power output part of the flip motor (2.21) is located between the two drive shafts (2.31).

7. The tipping and unloading bamboo structure according to claim 2 or 6, characterized in that: It also includes a speed reducer (2.33), through which the power of the reversing motor (2.21) is applied to the drive shaft (2.31).

8. The flipping and unloading bamboo structure according to claim 7, characterized in that: The power output shaft of the reducer (2.33) is fixedly connected to the end of the transmission shaft (2.31) via a shrink sleeve (2.34).

9. The flipping and unloading bamboo structure according to claim 7, characterized in that: The end of the drive shaft (2.31) that is not connected to the reducer (2.33) is rotatably connected to the bearing (2.35).

10. A bamboo-releasing device, characterized in that: The bamboo is unloaded using the flipping unloading structure described in any one of claims 1 to 9.

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