A kind of multistage stair warehouse inside grain surface half-automatic sampling auxiliary machine of adaptation
By coordinating the tracked walking system with the automatic cable reel mechanism, the equipment inside the grain silo can move autonomously and the power cable can be managed. This solves the problem of reliance on manpower in existing technologies, improves the safety and efficiency of sampling operations, and reduces labor intensity and costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CENTRAL GRAIN RESERVE TANGYUAN DIRECT STORAGE CO LTD
- Filing Date
- 2025-09-12
- Publication Date
- 2026-07-07
AI Technical Summary
In existing electric sampling operations in grain warehouses, the equipment's movement up stairs and the cable handling rely entirely on manual labor, resulting in low efficiency, high labor intensity, and high safety hazards, especially in complex and unstructured environments.
The semi-automatic sampling auxiliary machine for grain surfaces, which uses a tracked walking system and an automatic cable reel working in coordination, enables the equipment to move autonomously and manage the power supply cable. It integrates a tracked walking mechanism, an electric cable reel, and a sampler, and is adaptable to multi-level stair environments, reducing manual intervention.
It significantly reduces the intensity of manual labor, improves operational safety and efficiency, reduces personnel requirements, lowers costs, and enhances operational continuity, while adapting to complex grain storage environments.
Smart Images
Figure CN224465929U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a tracked semi-automatic sampling auxiliary machine adapted to grain surface in multi-level staircase grain warehouses, belonging to the technical field of grain storage auxiliary equipment. Background Technology
[0002] Food security is a crucial foundation of national security, and quality monitoring and control during grain storage are key to ensuring the quality of stored grain. Grain sampling is the primary step in testing quality and safety indicators, and the standardization, efficiency, and safety of its operation directly affect the accuracy and timeliness of the monitoring results.
[0003] Currently, large and medium-sized grain depots in China have widely equipped themselves with electric samplers, achieving initial mechanization of sampling operations with a coverage rate exceeding 70%. However, the current electric sampling operation mode still has significant shortcomings: although the equipment itself is electric, auxiliary processes such as movement, positioning, cable management, and sample tube handling are highly dependent on manual labor. Especially when entering flat warehouses or similar storage areas, operators must manually carry heavy sampling equipment, cable reels, and multiple sample tubes, climbing steep stairs on the outer walls of the grain depot. This not only results in extremely high labor intensity and low operational efficiency but also poses serious safety hazards. Typically, a complete sampling operation requires 3 to 4 people working together, leading to low mechanization and production efficiency. The bottleneck of existing technology mainly lies in the insufficient automation integration of sampling equipment. There is a lack of a mechanized system that can move autonomously, be intelligently powered, and integrate auxiliary functions, resulting in lengthy operation processes, high labor costs, and difficulty in adapting to the complex and unstructured environment inside grain depots and on external staircases.
[0004] Therefore, there is an urgent need to develop an auxiliary mechanical device that can adapt to complex terrain, enable autonomous equipment movement and automatic management of power cables, and significantly reduce the intensity of manual labor and personnel requirements. This has become an urgent need to improve the mechanization and intelligence level of grain depot sampling operations and implement the national policy of reducing personnel and increasing safety in grain depots. Utility Model Content
[0005] This invention solves the technical problems of low efficiency, high labor intensity, and high safety hazards caused by the complete reliance on manual labor for equipment climbing stairs and cable retraction in existing electric sampling operations in grain silos. Through the coordinated operation of a tracked walking system and an automatic cable retraction mechanism, this equipment can assist personnel in climbing multi-story staircases to enter the silo and achieve autonomous movement in complex storage environments. Simultaneously, it enables centralized management of power cables. A brief overview of this invention is provided below to offer a basic understanding of certain aspects of it. It should be understood that this overview is not an exhaustive summary of this invention. It is not intended to identify key or essential parts of this invention, nor is it intended to limit the scope of this invention.
[0006] The technical solution of this utility model:
[0007] A semi-automatic tracked sampling auxiliary machine adapted to grain surface in multi-level staircase grain silos includes a tracked walking mechanism, an operating platform, an electric cable reel mechanism, and a sampler. The tracked walking mechanism is installed at the bottom of the operating platform, and the electric cable reel mechanism and the sampler are set on the operating platform. The electric cable reel mechanism is connected to an external power source and supplies power to the tracked walking mechanism and the sampler respectively.
[0008] Preferably, the tracked walking mechanism includes tracked wheels, a drive shaft, a driven shaft, a transmission shaft, a steering box, and a drive mechanism. The drive shaft and the driven shaft are rotatably mounted on the bottom of the operating platform. Tracked wheels are mounted on both sides of the drive shaft and the driven shaft. The two ends of the transmission shaft are connected to the drive shaft and the driven shaft respectively through the steering box. The drive mechanism is mounted on the operating platform and is connected to the transmission shaft.
[0009] Preferably, the drive mechanism includes a drive motor, a frame, a synchronous pulley, a driving pulley, and a driven pulley. The drive motor is fixedly mounted on the operating table, the synchronous pulley is rotatably mounted on the operating table via the frame, the output end of the drive motor is provided with a driving pulley, and the drive shaft is provided with a driven pulley. Both the driving pulley and the driven pulley are connected to the synchronous pulley via a transmission belt.
[0010] Preferably, the electric cable reel mechanism includes a cable winding reel, a first pulley, a second pulley, elastic levers, a gear, and a rotary motor. The cable winding reel is rotatably mounted on the operating table. The first pulley is coaxially mounted on one end of the cable winding reel, and the second pulley is rotatably mounted on the operating table. The first and second pulleys are connected by a transmission belt. The rotary motor is fixedly mounted on the operating table, and a gear is mounted on the output end of the rotary motor. Multiple elastic levers are evenly arranged in a circumferential array on the side of the second pulley. When the gear rotates, it actuates the elastic levers. The cable winding reel contains cables connected to an external power source.
[0011] Preferably, the electric cable reel mechanism further includes a cable bracket and a guide wheel. The top of the cable bracket has a cable guide hole, and the guide wheel is rotatably installed inside the cable guide hole.
[0012] Preferably, the operating table is equipped with a sample tube storage frame.
[0013] This utility model has the following beneficial effects:
[0014] 1. This utility model, through a highly maneuverable tracked walking mechanism, enables the equipment to autonomously climb over the stairs of the grain depot's exterior wall and adapt to the complex grain surface environment inside the warehouse, solving the problems of difficult relocation and access for traditional equipment. It is suitable for different warehouse types such as flat warehouses and vertical silos. The integrated electric cable reel mechanism realizes the automatic synchronous winding and unwinding of power cables as the equipment moves, completely avoiding the insulation layer damage, electric shock risk, and tripping hazards that may be caused by manually pulling cables, greatly improving the safety and continuity of operations. The electric cable reel mechanism has the ability to supply long cables suitable for grain depot operation scenarios, effectively replacing the traditional wiring method of extending wires through multiple circuit connection points, avoiding electrical safety hazards such as poor contact and overload that may be caused by multiple connection points in series, while optimizing the cable management process inside the grain depot and improving the electrical safety level and standardization of the operation scenario.
[0015] 2. This utility model mechanizes all the heavy auxiliary processes required for sampling operations, such as equipment movement, positioning, and cable management, achieving a high degree of integration and semi-automation of sampling operations. It can reduce the number of personnel required for a single operation from 3-4 people to 1-2 people, reduce the overall cost by about 34%, and shorten the operation time by about 20%, greatly reducing the labor intensity of operators and perfectly matching the intelligent development direction of modern grain depots to reduce personnel and increase efficiency. Attached Figure Description
[0016] Figure 1 This is a three-dimensional diagram of a tracked semi-automatic sampling auxiliary machine for grain surface in a multi-level staircase grain silo.
[0017] Figure 2 This is a diagram showing the installation of a tracked semi-automatic sampling auxiliary machine adapted to grain surfaces in multi-level staircase grain silos.
[0018] Figure 3 This is a structural diagram of a tracked semi-automatic sampling auxiliary machine for grain surface in a multi-level staircase grain silo.
[0019] Figure 4 yes Figure 3 Enlarged view of point A;
[0020] Figure 5 This is a front view of a tracked semi-automatic sampling auxiliary machine for grain surface in multi-level staircase grain silos.
[0021] Figure 6 This is a side view of a tracked semi-automatic sampling auxiliary machine adapted to grain surfaces in multi-level staircase grain silos.
[0022] In the diagram: 1-tracked walking mechanism, 2-operating table, 3-electric cable reel mechanism, 4-sampler, 5-sample tube storage frame, 11-tracked walking wheel, 12-drive shaft, 13-driven shaft, 14-transmission shaft, 15-steering box, 16-drive mechanism, 161-drive motor, 162-frame, 163-synchronous pulley, 164-drive pulley, 31-cable reel, 32-first pulley, 33-second pulley, 34-elastic lever, 35-gear, 36-rotary motor, 37-cable bracket, 38-guide wheel. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model is described below with reference to specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are merely exemplary and not intended to limit the scope of the present utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of the present utility model.
[0024] The connections mentioned in this utility model are divided into fixed connections and detachable connections. Fixed connections (i.e., non-detachable connections) include, but are not limited to, conventional fixed connection methods such as folded connections, riveted connections, adhesive connections, and welded connections. Detachable connections include, but are not limited to, conventional disassembly methods such as threaded connections, snap-fit connections, pin connections, and hinged connections. When a specific connection method is not explicitly defined, it is assumed that at least one existing connection method can always be found to achieve the function, and those skilled in the art can choose according to their needs. For example, a welded connection can be chosen for fixed connections, and a hinged connection can be chosen for detachable connections.
[0025] Specific implementation method one: Combining Figures 1-6 This embodiment describes a semi-automatic tracked sampling auxiliary machine adapted to grain surfaces in multi-level staircase grain silos. It includes a tracked walking mechanism 1, an operating platform 2, an electric cable reel mechanism 3, and a sampler 4. The tracked walking mechanism 1 is mounted on the bottom of the operating platform 2, providing it with strong mobility and the ability to climb the external staircases of the grain silo, adapting to complex terrain inside and outside the grain silo, such as narrow passages, walkways, and grain surfaces. The electric cable reel mechanism 3 and the sampler 4 for mounting and fixing the electric sampler are located above the operating platform 2. The electric cable reel mechanism 3 is connected to an external power grid and supplies power to the tracked walking mechanism 1 and the sampler 4, achieving full electric drive and avoiding the problem of insufficient battery life.
[0026] The tracked traveling mechanism 1 is the foundation for equipment movement. The tracked traveling mechanism 1 includes tracked wheels 11, a drive shaft 12, a driven shaft 13, a transmission shaft 14, a steering box 15, and a drive mechanism 16. The drive shaft 12 and driven shaft 13 are rotatably mounted on the bottom of the operating platform 2 via bearing seats, with tracked wheels 11 mounted on both sides. The two ends of the transmission shaft 14 are connected to the drive shaft 12 and driven shaft 13 respectively via the steering box 15 (preferably a 90-degree steering gearbox), effectively transmitting power to the tracksed wheels. The steering box 15 is preferably a 90-degree steering gearbox. The drive mechanism 16 is mounted on the operating platform 2 and connected to the transmission shaft 14, providing it with power.
[0027] The drive mechanism 16 includes a drive motor 161, a frame 162, a synchronous pulley 163, a driving pulley 164, and a driven pulley. The drive motor 161 is fixed to the operating platform 2 by bolts. The synchronous pulley 163 is rotatably mounted on the operating platform 2 via the frame 162. The driving pulley 164 is mounted on the output shaft of the drive motor 161, while the driven pulley is mounted on the transmission shaft 14. The driving pulley 164 and the driven pulley are connected to the synchronous pulley 163 via a transmission belt (such as a synchronous belt), forming a stable and reliable transmission system to drive the track movement.
[0028] The electric cable reel mechanism 3 realizes automatic cable winding and power supply. It includes a cable winding reel 31, a first pulley 32, a second pulley 33, elastic levers 34, a gear 35, and a rotary motor 36. The cable winding reel 31 is rotatably mounted on the operating table 2 via a shaft and bearings, and it holds the main power supply cable connected to an external power source. The first pulley 32 is coaxially mounted at one end of the cable winding reel 31. The second pulley 33 is rotatably mounted on the operating table 2 via another shaft. The first pulley 32 and the second pulley 33 are connected by a transmission belt, forming a speed reduction and torque amplification mechanism. Multiple elastic levers 34, made of metal or high-strength engineering plastic, are evenly arranged in a circumferential array on the side of the second pulley 33. The rotary motor 36 is fixedly mounted on the operating table 2, and a gear 35 is mounted on its output shaft. When the rotary motor 36 is working, it drives the actuating gear 35 to rotate. The gear teeth sequentially actuate the elastic paddle 34, thereby intermittently driving the second pulley 33 and the first pulley 32 to rotate, ultimately driving the cable reel 31 to perform precise step-by-step cable take-up or unwinding movements.
[0029] The core of the electric cable reel mechanism 3 lies in its clamping mechanical and adaptive design. The main shaft of the cable reel 31 integrates a conductive slip ring, which realizes continuous power transmission in the rotating state and non-contact power transmission, completely eliminating the risk of damage to the cable caused by twisting during the cable winding and unwinding process.
[0030] The electric cable reel mechanism 3 integrates an adaptive tension adjustment module, which applies a reverse damping torque to the cable reel 31 through the synergistic action of a preload-adjustable torsion spring and friction plate. This design ensures that the cable maintains constant tension during the winding and unwinding process, effectively preventing tangling and knotting caused by cable slack, or cable damage and equipment displacement caused by excessive stretching.
[0031] Experiments show that the device can complete more than 5,000 reliable take-up and take-down cycles in tests simulating the complex environment of a grain silo, with cable wear rate reduced by more than 83%, fully meeting the requirements of the mechanical and electrical safety standard GB 5226.1-2008.
[0032] The electric cable reel mechanism 3 also includes a cable support 37 and a guide wheel 38. The cable support 37 is fixed to the edge of the operating table 2, and its top is provided with a cable guide hole. The guide wheel 38 is rotatably installed in the hole through a pin. After the cable is led out from the cable reel 31, it passes through the guide wheel 38 and extends to the outside of the equipment. This structure can effectively reduce the friction between the cable and the support, protect the cable sheath, and make the cable exit direction smoother and more orderly.
[0033] The operating table 2 is equipped with a sampling tube storage frame 5 for centralized storage and transportation of multiple spare sampling tubes. This allows operators to transport all necessary equipment and materials into the warehouse at once, eliminating the need for multiple trips and greatly simplifying the work process.
[0034] Work process:
[0035] A single operator moves the device to the outer wall of the grain silo and connects the external power cord to the electric cable reel mechanism 3. The device is then started, and the tracked walking mechanism 1 drives the entire machine up the stairs into the silo. During movement, the electric cable reel mechanism 3 automatically releases the cable under constant tension control. Upon reaching the predetermined sampling point, the operator retrieves a sampling tube from the sampling tube storage frame 5 and installs it on the sampler 4 to perform the sampling operation. After the operation is completed, the device automatically retrieves the cable and removes it from the silo.
[0036] This implementation method, through highly integrated mechanized design, reduces the number of personnel per operation from 3-4 to 1-2, reduces overall costs by approximately 34%, increases operational efficiency by approximately 20%, and greatly enhances operational safety and reliability.
[0037] It should be noted that in the above embodiments, as long as the technical solutions are not contradictory, they can be arranged and combined. Those skilled in the art can exhaust all possibilities based on the mathematical knowledge of permutation and combination. Therefore, this utility model will not describe the technical solutions after permutation and combination one by one, but it should be understood that the technical solutions after permutation and combination have been disclosed by this utility model.
[0038] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A semi-automatic tracked sampling auxiliary machine for grain surface in multi-level staircase grain silos, characterized in that: It includes a tracked walking mechanism (1), an operating platform (2), an electric cable reel mechanism (3) and a sampler (4). The tracked walking mechanism (1) is installed at the bottom of the operating platform (2). The electric cable reel mechanism (3) and the sampler (4) are installed on the operating platform (2). The electric cable reel mechanism (3) is connected to an external power source and supplies power to the tracked walking mechanism (1) and the sampler (4) respectively.
2. The semi-automatic tracked sampling auxiliary machine for grain surface in a multi-level staircase grain silo according to claim 1, characterized in that: The tracked walking mechanism (1) includes tracked wheels (11), drive shaft (12), driven shaft (13), transmission shaft (14), steering box (15) and drive mechanism (16). The drive shaft (12) and driven shaft (13) are rotatably mounted on the bottom of the operating table (2). Tracked wheels (11) are mounted on both sides of the drive shaft (12) and driven shaft (13). The two ends of the transmission shaft (14) are connected to the drive shaft (12) and driven shaft (13) respectively through the steering box (15). The drive mechanism (16) is mounted on the operating table (2) and is connected to the transmission shaft (14).
3. The semi-automatic tracked sampling auxiliary machine for grain surface in a multi-level staircase grain silo according to claim 2, characterized in that: The drive mechanism (16) includes a drive motor (161), a frame (162), a synchronous pulley (163), a drive pulley (164), and a driven pulley. The drive motor (161) is fixedly mounted on the operating table (2), and the synchronous pulley (163) is rotatably mounted on the operating table (2) through the frame (162). The output end of the drive motor (161) is provided with a drive pulley (164), and the driven pulley is provided on the transmission shaft (14). The drive pulley (164) and the driven pulley are both connected to the synchronous pulley (163) through a transmission belt.
4. The semi-automatic tracked sampling auxiliary machine for grain surface in a multi-level staircase grain silo according to claim 1, characterized in that: The electric cable reel mechanism (3) includes a cable reel (31), a first pulley (32), a second pulley (33), elastic levers (34), a gear (35), and a rotary motor (36). The cable reel (31) is rotatably mounted on the operating table (2). The first pulley (32) is coaxially mounted on one end of the cable reel (31), and the second pulley (33) is rotatably mounted on the operating table (2). The first pulley (32) and the second pulley (33) are connected by a transmission belt. The rotary motor (36) is fixedly mounted on the operating table (2). The output end of the rotary motor (36) is equipped with a gear (35). Multiple elastic levers (34) are evenly arranged in a circular array on the side of the second pulley (33). When the gear (35) rotates, it actuates the elastic levers (34). The cable reel (31) is wound and stored with cables connected to an external power source.
5. A semi-automatic tracked sampling auxiliary machine for grain surface in a multi-level staircase grain silo according to claim 1, characterized in that: The electric cable reel mechanism (3) also includes a cable bracket (37) and a guide wheel (38). The top of the cable bracket (37) has a cable guide hole, and the guide wheel (38) is rotatably installed in the cable guide hole.
6. The semi-automatic tracked sampling auxiliary machine for grain surface in a multi-level staircase grain silo according to claim 1, characterized in that: The operating table (2) is equipped with a sample tube storage frame (5).