Self-propelled lifting tobacco leaf loading and unloading platform for tobacco curing barn
The self-propelled lifting and unloading platform for tobacco leaves solves the problems of equipment stability and safety caused by the unhardened floor of the tobacco curing barn, realizes automated tobacco leaf loading and unloading, improves efficiency and uniformity of tobacco loading, and enhances the adaptability and space utilization of the equipment.
Patent Information
- Application Number
- CN202511108957.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-08
- Publication Date
- 2025-10-17
AI Technical Summary
The existing tobacco curing barn floors are either unhardened or uneven, making it difficult for the equipment to operate stably. Traditional manual loading and unloading of tobacco leaves poses safety hazards, is labor-intensive, and inefficient. Existing equipment is difficult to adapt to multi-level height requirements, has poor uniformity in tobacco loading, low space utilization, and relies on manual participation throughout the entire process.
Design a self-propelled lifting and unloading platform for tobacco leaves in a tobacco curing barn. It adopts a modular track and a self-propelled mobile platform, combined with a lifting mechanism and a lifting and conveying mechanism, to achieve stable movement and height adjustment of the equipment on unpaved ground and to automatically complete the loading and unloading of tobacco leaves.
It improves the stability and safety of the equipment in complex ground environments, reduces the intensity of manual labor, increases loading and unloading efficiency and smoke uniformity, and enhances the versatility and space utilization of the equipment.
Smart Images
Figure CN120793559A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of tobacco leaf curing processing, in particular to a self-walking lifting tobacco leaf loading and unloading platform for a tobacco curing barn. BACKGROUND
[0002] In the process of tobacco leaf curing, tobacco leaf loading and unloading is a key link of the operation of a tobacco curing barn. Existing tobacco curing barns include brick and concrete structure curing barns and light steel insulation board structure curing barns, and the ground inside the curing barn is divided into hardened and non-hardened ground. Most of the ground of the curing barn is not hardened, and even if it is hardened, the flatness of the ground of the curing barn is poor, which brings challenges to the stable operation of the loading and unloading equipment. In the existing tobacco leaf curing process, the curing barn is usually provided with 3-4 layers of tobacco hanging racks, each layer is spaced apart by about 800 mm, and the height can reach about 3.5 meters, and the weight of the tobacco clamp filled with tobacco is about 15 kg, and the loading and unloading operation intensity is large. The traditional loading and unloading mode relies on manual ladder operation: one operator passes the tobacco clamp on the ground, and the other operator stands on the ladder to receive and hang, and the ladder needs to be moved every 3-4 tobacco clamps to continue the operation. This mode has the following defects: uneven ground causes uneven force on the ladder, which is prone to tilting; the operator at a high place is prone to accidents after muscle fatigue due to long-term weight bearing; frequent movement of the ladder is time-consuming and labor-intensive, and manual lifting of the tobacco clamp to a high layer consumes a lot of physical strength, affecting the operation speed; most of the automatic tobacco loading equipment can only transport the tobacco clamp to a specified layer, and cannot realize the close arrangement of the tobacco clamp on the tobacco hanging rack, resulting in poor tobacco loading uniformity and low space utilization; and most of the equipment relies on a hardened ground, and cannot adapt to a non-hardened ground of the curing barn, or cannot be flexibly adjusted in height to adapt to the loading and unloading requirements of 2-4 layers with different heights, and the versatility is limited; manual operation is required for the whole process of lifting, positioning and hanging of the tobacco clamp, and the labor intensity is large due to repeated labor.
[0003] Therefore, an intelligent equipment that can adapt to complex ground conditions, balance safety and efficiency, and accurately adapt to multi-layer loading and unloading height is needed to solve the defects and problems of traditional operation. SUMMARY
[0004] In view of the above-mentioned problems that the ground of the tobacco curing barn is not hardened or has poor flatness, which affects the stable operation of the equipment; the traditional manual ladder loading and unloading of tobacco leaves has the risk of tilting and falling from a high place, and has high labor intensity and low efficiency; the existing equipment cannot adapt to multi-layer height, has poor tobacco loading uniformity, low space utilization, insufficient versatility, and relies on manual operation for lifting, positioning and hanging, the present application provides a self-walking lifting tobacco leaf loading and unloading platform for a tobacco curing barn.
[0005] The technical problems solved by the present application are: a self-propelled lifting and unloading tobacco leaf platform for a tobacco curing house, comprising an assembled track and a self-propelled moving platform, the assembled track is paved on the ground of the tobacco curing house, the self-propelled moving platform is slidingly arranged on the assembled track and moves back and forth in the tobacco curing house along the path paved by the assembled track, a support steel frame is arranged on the self-propelled moving platform, a personnel standing platform is connected to the support steel frame by a lifting mechanism above the support steel frame, the lifting mechanism controls the lifting of the personnel standing platform to adjust its height, a lifting and conveying mechanism is arranged on one side of the personnel standing platform on the self-propelled moving platform, clamps are symmetrically installed on the lifting and conveying mechanism, the clamps are used to clamp tobacco clips or tobacco rods, and the lifting and conveying mechanism controls the upward and downward movement of the clamps to realize the lifting of tobacco leaves.
[0006] Further, the lifting and conveying mechanism comprises two groups of synchronous belt slides vertically arranged on the self-propelled moving platform, the two groups of synchronous belt slides are arranged in parallel, sliding blocks are slidingly installed on the synchronous belt slides, the clamps are installed on the sliding blocks and are arranged opposite to each other, a lifting motor is installed on the self-propelled moving platform, an output end of the lifting motor is connected with a synchronous wheel in one of the two groups of synchronous belt slides, a transmission shaft is horizontally connected between the synchronous wheels of the two groups of synchronous belt slides through a shaft coupling, and the synchronous operation of the two groups of synchronous belt slides is realized through the transmission shaft.
[0007] Further, the clamp comprises a mounting block, an outer channel steel, and a clamp seat, the mounting block is fixedly installed on the sliding block of the lifting and conveying mechanism, the outer channel steel is located on the inner side of the mounting block, the outer channel steel and the mounting block are hinged together through two parallel movable rods to form a parallelogram linkage, a driving member for controlling the deformation of the parallelogram linkage is arranged in the parallelogram linkage, the clamp seat is slidingly sleeved on the inner side of the outer channel steel, the clamp seat is installed in the outer channel steel through an elastic return member, a recess slot is opened above the clamp seat, and a pressing plate is rotatably connected in the recess slot, in the deformation process of the parallelogram linkage driven by the driving member, the outer channel steel will shift left and right, causing the clamp seat to retract relative to the outer channel steel, and the pressing plate is pushed by the outer channel steel to be vertically flipped to a horizontal state, thereby providing clamping and limiting for the tobacco clip.
[0008] Further, a spring pull rope is further connected between the pressing plate and the clamp seat to provide an automatic vertical resetting function for the pressing plate.
[0009] Further, the lifting mechanism comprises a bottom plate and a top plate arranged in a vertical manner, the bottom plate is fixed above the support steel frame, the top plate is fixed below the personnel standing platform, a scissor is arranged between the bottom plate and the top plate, one side of the scissor is hingedly connected to the bottom plate and the top plate at the upper and lower ends, straight slots are horizontally opened in the bottom plate and the top plate, the other side of the scissor is slidingly sleeved in the straight slots through a pin shaft, the upper and lower ends of the scissor are respectively provided with connecting rods, and the two connecting rods are connected through an electric push rod.
[0010] Further, the elastic reset member comprises a guide rod fixed on the inner side of the clamping seat, the outer end of the guide rod is movably penetrated through the outer channel steel, and a spring is sleeved on the guide rod, and the two ends of the spring are fixed on the outer channel steel and the clamping seat respectively.
[0011] Further, the assembled track is composed of walking guide rails and intermediate connecting frames, and the two walking guide rails are arranged in parallel, and the head and tail of the walking guide rail are spliced together through the intermediate connecting frame.
[0012] Further, the self-propelled mobile platform comprises a platform plate, a drive bridge and a walking wheel, the drive bridge is arranged at the left and right ends below the platform plate, the walking wheel is installed at the two ends of the drive bridge, and the walking wheel is rollingly connected to the walking guide rail.
[0013] Further, the telescopic guide column is vertically installed between the platform plate and the personnel standing platform, and the telescopic guide column is located on one side of the straight slot of the automatic lifting mechanism.
[0014] Further, the lifting conveying mechanism is provided with a sensor module, the sensor module comprises a plurality of position sensors arranged on the synchronous belt sliding table, and the arrangement position of the position sensor is consistent with the lifting height requirement of the tobacco leaf.
[0015] The beneficial effects of the present application are: The assembled track design, through the modular splicing of the walking guide rail and the intermediate connecting frame, can flexibly adapt to the unhardened or uneven ground of the tobacco curing house, provide a stable moving path for the self-propelled mobile platform, solve the risk of lateral tilting of the traditional ladder due to uneven ground, and the track can be flexibly adjusted according to the length of the curing house, and can be repeatedly used in multiple curing houses, improving the equipment turnover rate; the walking wheel of the self-propelled mobile platform adopts a rubber-coated wheel design, which can adapt to slight ups and downs, and rolls with the track to avoid slipping and deviation, ensuring the stability of the platform position during loading and unloading, and laying a safe foundation for subsequent operations; The lifting mechanism cooperates with the electric push rod through the scissor structure to realize the accurate adjustment of the height of the personnel standing platform, so that the operating personnel do not need to climb the ladder or lift the weight, reducing muscle fatigue and the risk of falling from a high place; the telescopic guide column further limits the lateral shaking of the standing platform, improving the stability of high-altitude operation; the lifting conveying mechanism automatically completes the vertical lifting of the tobacco clamp through the synchronous belt sliding table and the clamp, replacing manual lifting, and greatly reducing physical exertion; The clamp adopts a parallelogram linkage mechanism and an elastic reset member, which can stably clamp the tobacco clamp or tobacco rod, cooperates with the overturning limiting function of the pressing plate to prevent the tobacco clamp from falling during lifting, and the elastic pull rope realizes the automatic resetting of the pressing plate, ensuring the operation safety; The platform is equipped with a guardrail, LED lighting lamp and wireless remote control function, further improving the safety of operation: the guardrail prevents falling from a high altitude, the lighting lamp solves the problem of dimness in the curing room, and the wireless remote control reduces the trouble of manual climbing and position adjustment. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 is a schematic diagram of the overall structure of the present application; Figure 2 is an exploded view of the present application; Figure 3 is a schematic diagram of the personnel standing platform and lifting mechanism structure of the present application; Figure 4 is a schematic diagram of the assembled track and self-propelled mobile platform structure of the present application; Figure 5 is a schematic diagram of the local structure of the lifting conveying mechanism of the present application; Figure 6 is a schematic diagram of the lifting mechanism structure of the present application; Figure 7 is a schematic diagram of the overall structure of the lifting mechanism of the present application; Figure 8 is a schematic diagram of the local enlarged structure of the clamp of the present application; Figure 9 is a schematic diagram of the front view structure of the clamp of the present application; Figure 10 is a state change process diagram of the clamp of the present application; Figure 11 is a schematic diagram of the structure of the assembled track of the present application.
[0017] In the figure: 1, assembled track; 101, walking guide rail; 102, intermediate connecting frame; 103, support steel rail; 104, height adjustment support; 105, height adjustment nut; 106, lap rail; 2, self-propelled mobile platform; 201, platform plate; 202, drive bridge; 203, walking wheel; 3, lifting conveying mechanism; 301, synchronous belt sliding table; 302, lifting motor; 303, transmission shaft; 304, sliding block; 4, clamp; 401, mounting block; 402, outer channel steel; 403, movable rod; 404, electric push rod two; 405, clamping seat; 406, accommodation slot; 407, pressing plate; 408, elastic pull rope; 409, spring; 410, guide rod; 5, vertical rod; 6, fixed plate; 7, support steel frame; 8, lifting mechanism; 801, bottom plate; 802, top plate; 803, straight groove; 804, scissor; 805, pin shaft; 806, connecting rod; 807, electric push rod one; 9, personnel standing platform; 10, telescopic guide column; 11, guardrail; 12, tobacco clamp; 13, position sensor. DETAILED DESCRIPTION
[0018] The application will be further described below in conjunction with the drawings and examples.
[0019] Please refer to Figures 1-11 The application provides a technical solution of a self-propelled lifting leaf loading and unloading platform for a tobacco curing house. Embodiments
[0020] According to Figure 1 and Figure 2 , the self-propelled lifting leaf loading and unloading platform for a tobacco curing house mainly comprises a movable base formed by a spliced track 1 and a self-propelled mobile platform 2, and a complete operation system formed by a supporting steel frame 7, a lifting mechanism 8, a personnel standing platform 9, and a lifting and conveying mechanism 3. The spliced track 1 is laid on the ground of the tobacco curing house to provide a stable moving path for the equipment. The self-propelled mobile platform 2 is matched with the spliced track 1 through walking wheels 203 and can move forward and backward along the track in the curing house to realize transposition operation. The supporting steel frame 7 is fixed on the self-propelled mobile platform 2 and serves as the installation base of the lifting mechanism 8. The lifting mechanism 8 connects the supporting steel frame 7 and the personnel standing platform 9 to realize height adjustment of the standing platform. The lifting and conveying mechanism 3 is installed on one side of the self-propelled mobile platform 2 close to the personnel standing platform 9, clamps a tobacco clamp or a tobacco rod through a clamp 4 on it, and completes the vertical lifting of the tobacco leaves.
[0021] As shown in Figure 4 , the spliced track 1 adopts a modular splicing design and is composed of two parallel walking rails 101 and a plurality of intermediate connecting frames 102. The walking rails 101 are made of high-strength metal pipes (other shapes of tracks can also be used), and the spacing between the two walking rails 101 is fixed through the intermediate connecting frames 102. The head and tail ends of the walking rails 101 can be detachably spliced through the intermediate connecting frames 102, so that the total length of the track can be flexibly adjusted according to the length of the tobacco curing house, and the track can be adapted to different lengths of the tobacco curing house and reused between multiple tobacco curing houses, achieving "just install and use, and disassemble after use". This not only solves the flatness problem caused by the unhardened ground of the tobacco curing house, but also improves the turnover rate of the equipment between multiple curing houses. The main body of the self-propelled mobile platform 2 is a platform plate 201, and driving bridges 202 are symmetrically installed at the bottom of the left and right ends of the platform plate 201. The walking wheels 203 at the two ends of the driving bridges 202 are in rolling cooperation with the walking rails 101. During work, the output torque of the reduction motor in the driving bridge 202 drives the walking wheels 203 to roll along the walking rails 101 through the power provided by the driving bridge 202, realizing the movement of the whole platform, so that the self-propelled mobile platform 2 can move forward or backward along the spliced track 1 stably without manual carrying or position adjustment, solving the trouble of frequent movement of the ladder in traditional operation. The walking wheels 203 adopt rubber-coated wheels to increase friction, reduce noise, and adapt to slight ups and downs, avoiding jamming. The cooperation between the track and the walking wheels 203 avoids the problems of slipping and deviation, ensuring the stability of the platform position during loading and unloading and improving the operation safety.
[0022] The support steel frame 7 is fixed on the platform plate 201, the top of which is installed with the lifting mechanism 8 to realize the height adjustment of the personnel standing platform 9, and the specific structure is as shown in Figure 3 and Figure 6 The lifting mechanism 8 includes a bottom plate 801 and a top plate 802 arranged in parallel, the bottom plate 801 is fixed with the support steel frame 7, the top plate 802 is connected with the bottom of the personnel standing platform 9, the bottom plate 801 and the top plate 802 are provided with a scissor 804, the upper and lower ends of one side of the scissor 804 are hinged with the bottom plate 801 and the top plate 802 respectively, the upper and lower ends of the other side are embedded in the straight slot 803 on the bottom plate 801 and the top plate 802 through the pin shaft 805, and can slide along the straight slot 803, the upper and lower ends of the scissor 804 are connected with the connecting rod 806 respectively, and the two connecting rods 806 are connected through the electric push rod two 404. When the electric push rod two 404 is extended or retracted, the scissor 804 is driven to slide in the straight slot 803 through the pin shaft 805, so that the structure of the scissor 804 is expanded or retracted, and then the top plate 802 and the personnel standing platform 9 are lifted, which can accurately adapt to the operation requirements of the 2-4 layers (height 1.5-3.5m) of the curing room 2, and reduce the physical consumption of manually lifting tobacco leaves. In addition, the telescopic guide column 10 is vertically installed between the platform plate 201 and the personnel standing platform 9, the telescopic guide column 10 is located on one side of the straight slot 803, which further limits the lateral shaking of the standing platform and improves the stability of high-altitude operation.
[0023] The scissor 804 structure used in the embodiment is only a specific implementation to realize this function, other lifting mechanisms 8 known in the prior art, such as a straight-line lifting structure driven by a hydraulic lifting cylinder, a lifting structure driven by a lead screw nut, a lifting structure cooperated by a gear and a rack, etc., as long as they can meet the requirements of the lifting stroke, carrying capacity and stability of the personnel standing platform 9, can be applied here.
[0024] According to Figure 4 and Figure 5As shown, the lifting conveying mechanism 3 provides power for the vertical conveying of tobacco leaves, and its core structure includes: on the inner side of the personnel standing platform 9, two sets of synchronous belt sliding tables 301 are symmetrically arranged, the synchronous belt sliding table 301 is longitudinally arranged on the self-propelled mobile platform 2, and the clamp 4 is installed on the sliding block 304 thereon, forming a tobacco clamp or tobacco rod lifting conveying mechanism 3 for driving the clamp 4 to lift and complete the conveying and loading and unloading of tobacco leaves. Two vertical rods 5 are vertically fixed on the self-propelled mobile platform 2, the synchronous belt sliding table 301 is locked on the vertical rod 5 through the fixing plate 6, and the root of the vertical rod 5 on one side is further reinforced with the support frame through a steel frame, forming a double rigid support to avoid the sliding table from shaking during long-stroke lifting. The self-propelled mobile platform 2 is provided with a lifting motor 302, the output end of the lifting motor 302 is connected with the synchronous wheel in any one set of synchronous belt sliding table 301, and the synchronous wheels of the two sets of synchronous belt sliding table 301 are connected with a transmission shaft 303, and the transmission of the synchronous wheels in the two sets of synchronous belt sliding table 301 is realized through the transmission shaft 303. The lifting motor 302 drives the synchronous wheel to rotate, and the synchronous wheels of the two sets of synchronous belt sliding table 301 are driven to rotate synchronously through the transmission shaft 303, so that the synchronous belt drives the sliding block 304 to vertically lift along the synchronous belt sliding table 301, realizing the height conveying of the clamp 4. The output torque of the lifting motor 302 is synchronously distributed to the left and right synchronous wheels through the transmission shaft 303, ensuring that the linear velocity difference of the two sets of synchronous belt sliding table 301 is less than 0.5%, so that the clamp 4 always maintains horizontal during the lifting or lowering process, preventing the tobacco leaves from sliding due to inclination. The synchronous belt adopts high-strength steel wire core polyurethane belt with tensile strength greater than 1500N, which can complete 1m single lift in 3s, meeting the process requirements of fast loading of tobacco leaves on the second, third and fourth layers of the tobacco house.
[0025] The clamp 4 is connected with the sliding block 304 in the synchronous belt sliding table 301 through a quick release pin, the opening of the clamp 4 can be infinitely adjusted between 1320mm, 1340mm and 1360mm, and is compatible with mainstream tobacco clamp specifications; at the same time, rubber pads are attached to the inner side of the clamp 4 to increase friction and avoid scratching the surface paint of the tobacco clamp. For areas that still use bamboo poles to hang tobacco, the opening of the clamp 4 can be adjusted to a maximum of 1400mm to directly clamp the bamboo pole, expanding the application range of the equipment.
[0026] The proper positions of the personnel standing platform 9, the support frame and the vertical rod 5 can be installed with detachable guardrails 11 to provide protection effect for high-altitude work; LED lighting lamps can also be arranged at the front and rear ends of the self-propelled mobile platform 2 to provide an illumination of ≥300 lx in a closed and dark tobacco house, reducing the risk of misoperation. In addition, the self-propelled mobile platform 2, the automatic lifting mechanism 8 and the lifting conveying mechanism 3 all have wireless remote control function, and the operator can complete the platform advancing and retreating and the tobacco clamp lifting on the ground, avoiding frequent climbing up and down.
[0027] In specific use, the self-walking lifting and unloading tobacco leaf platform for the tobacco curing house is first modularly spliced by the walking guide rail 101 through the intermediate connecting frame 102 according to the length of the tobacco curing house, to form a track path adapted to the length of the tobacco curing house, the walking wheel 203 of the self-walking mobile platform 2 is straddled on the assembled track 1, the walking wheel 203 is in rolling cooperation with the walking guide rail 101, the reduction motor in the drive axle 202 provides power to drive the walking wheel 203 to roll along the track, so that the self-walking mobile platform 2 moves autonomously in the tobacco curing house; then the operator stands on the personnel standing table 9, adjusts the working height through the lifting mechanism 8, so that the operator is adjusted to the working height adapted to the current layer, to reduce the power consumption of the operator lifting the tobacco clamp; then the operator below places the tobacco clamp filled with tobacco leaves in the clamp 4 for clamping, the tobacco leaf lifting is started, two groups of parallel synchronous belt sliding tables 301 are synchronously driven through the transmission shaft 303, the clamp 4 is driven to vertically lift along the sliding table, the tobacco clamp is transported to the working height of the current layer, and finally the operator on the personnel standing table 9 directly takes down the tobacco clamp transported to the current layer and arranges it closely on the tobacco hanging rack of the tobacco curing house, without the need of lifting with weight. When the current position completes the loading and unloading of 3-4 tobacco clamps, the self-walking mobile platform 2 is started through wireless remote control or the platform control panel, the drive axle 202 drives the walking wheel 203 to smoothly retreat along the walking guide rail 101, and moves to the next row of tobacco hanging position to continue the tobacco hanging work. The above steps are repeated, the height of the personnel standing table 94 is adjusted through the lifting mechanism 8, to adapt to the different layer heights of 2-4 layers, the conveying height of the lifting and conveying mechanism 3 is synchronously adjusted, and the loading and unloading work of tobacco leaves of each layer is completed. Embodiment
[0028] The clamp 4 provided in Embodiment One can only provide simple support effect for the tobacco clamp or tobacco rod, and it is difficult to avoid the problem of falling of the tobacco clamp during lifting. In order to enable the clamp 4 to support both ends of the tobacco clamp, the distance between the two synchronous belt sliding tables 301 needs to be adapted to the length of the tobacco clamp, so that after the tobacco leaves are lifted in place, the operator needs to hang the taken-down tobacco clamp around the lifting and conveying mechanism 3 at the tobacco leaf hanging point behind the lifting and conveying mechanism 3, resulting in complicated operation.
[0029] The same parts of the present embodiment and Embodiment One are not repeated, and the differences are as follows: Figures 7-10As shown, the clamp 4 comprises a mounting block 401, an outer channel steel 402, a clamping seat 405 and a driving assembly. The mounting block 401 is fixed on the sliding block 304 of the lifting conveying mechanism 3, the outer channel steel 402 is located on the inner side of the mounting block 401, both are hinged through two parallel movable rods 403, forming a parallelogram linkage, and a driving member for controlling the deformation of the parallelogram linkage is arranged in the parallelogram linkage, here the driving member can adopt an electric push rod two 404, the fixed seat of the electric push rod two 404 is hinged on the mounting block 401, and the output end part is hinged on the movable rod 403; the inner side of the outer channel steel 402 is slidingly sleeved with the clamping seat 405, the clamping seat 405 is connected with the outer channel steel 402 through an elastic reset member, the elastic reset member comprises a guide rod 410 fixed on the inner side of the clamping seat 405, the outer end of the guide rod 410 penetrates through the outer channel steel 402, and a spring 409 is sleeved on the guide rod 410, and the two ends of the spring 409 are fixed on the outer channel steel 402 and the clamping seat 405 respectively. A relief groove 406 is opened above the clamping seat 405, a pressing plate 407 is rotatably connected in the relief groove 406, and an elastic pull rope 408 is connected between the pressing plate 407 and the clamping seat 405.
[0030] Specifically in use, the self-propelled lifting tobacco leaf loading and unloading platform in a tobacco curing house of the present application is as follows, Figure 10 As shown, in the initial state, the clamp 4, the pressing plate 407 is pulled to the vertical state by the elastic pull rope 408, the relief groove 406 is in the open state, and the parallelogram linkage is in the oblique downward form. When it is needed to clamp the tobacco clamp or the tobacco rod, the tobacco clamp 12 is placed on the clamping seat 405 from the relief groove 406, and then the driving member in the parallelogram linkage acts, driving the linkage to gradually deform from the oblique downward quadrilateral structure to the rectangular structure, the outer channel steel 402 moves upward with the linkage and deviates to the direction of the tobacco clamp 12, since the two ends of the tobacco clamp 12 contact with the clamping seat 405, the outer channel steel 402 deviates while pushing the clamping seat 405 to move inward relative to the outer channel steel 402, the spring 409 is compressed to store energy, at this time the clamping seat 405 provides elastic clamping effect for the tobacco clamp 12 through the spring 409, at the same time, the outer channel steel 402 pushes against the pressing plate 407 in the deviation process, making the pressing plate 407 turn from the vertical state to the horizontal state, cooperating with the clamping seat 405 to form clamping limiting for the tobacco clamp, which can prevent the tobacco clamp from falling from a high place in the lifting process, improve the stability of the tobacco lifting, and in order to further improve the clamping effect, a protrusion is arranged on the side of the pressing plate contacting with the tobacco clamp, so as to increase the friction force between the pressing plate and the tobacco clamp; When the tobacco clip is lifted into place by the lifting conveying mechanism 3, the electric push rod 807 is extended again, pushing the rectangular structure of the connecting rod mechanism to gradually deform into an upwardly inclined quadrilateral structure. The outer channel steel 402 moves upward with the connecting rod mechanism while offsetting in the opposite direction of the tobacco clip. At the same time, the clamp 4 moves outward relative to the outer channel steel 402 by the elastic force of the spring 409. After the pressing plate 407 is pushed off the limiting position of the outer channel steel 402, it is pulled to the vertical state by the elastic pull rope 408, opening the gap 406 and releasing the limiting of the tobacco clip, so that the tobacco clip can be easily removed and hung. At the same time, the pressing plate 407 is automatically turned back to the vertical state under the action of the elastic pull rope 408, preparing for the next clamping. Embodiment
[0031] On the basis of embodiment one, a plurality of position sensors 13 are arranged and installed on the synchronous belt sliding table 301 of the lifting conveying mechanism 3 in the height direction. The arrangement position of the sensor corresponds to the lifting height requirement of each layer of tobacco leaves in the tobacco house, for example, 3-4 sensors are arranged and installed corresponding to each 800mm height.
[0032] When working, the position sensor 13 detects the position of the sliding block 304 in real time and feeds back the signal to the equipment control system. When the sliding block 304 drives the clamp 4 to reach the target height (i.e. the corresponding sensor position), the control system automatically controls the lifting motor 302 to stop running, realizing the precise positioning of the tobacco clip. Embodiment
[0033] On the basis of embodiment two and embodiment three, a pushing mechanism or transmission mechanism can also be arranged below or on the side of the clamp seat 405. When the sensor precisely positions the tobacco clip to the corresponding hanging point, the pushing mechanism or transmission mechanism can automatically push the tobacco clip on the clamp 4 to the hanging point, realizing the lifting and hanging without manual labor. Embodiment
[0034] Since the traditional tobacco house is provided with a step or slope at the entrance of the door, affecting the pushing of the equipment, in order to solve this problem, the assembled track is further designed and improved in this embodiment.
[0035] As Figure 7As shown, the support rail 103 is correspondingly arranged below the walking rail 101 of the assembled track 1, the walking rail 101 is arranged on the support rail 103, a plurality of vertical height adjusting supports 104 are arranged on the two sides of the fixed ears of the support rail 103, the height adjusting supports 104 support the support rail 103 and the walking rail 101, and the height adjusting supports 103 are adjusted by the height adjusting nuts 105 to adjust the support height, so that the height of the walking rail 101 can be leveled with the ground height of the entrance of the tobacco house, and the lap track 106 is also assembled and connected at the front end entrance of the assembled track 1, the lap track 106 is arranged in a slope structure, the slope angle is reasonably designed according to the height of the outer steps of the tobacco house, the height difference between the ground outside the tobacco house and the walking rail 101 can be smoothly transitioned, the steps or cliffs are eliminated, and the equipment can be stably and labor-savingly pushed forward; and the flat assembled track can be extended to a distance of 2m outside the door of the tobacco house, and the space above the door can also be hung with tobacco leaves during the process of the equipment being opened outside the door, and the space utilization rate of the tobacco house is improved.
[0036] The above description is only the preferred embodiment of the present application, and does not limit the present application, any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A self-propelled lifting and unloading platform for tobacco leaves in a flue-curing tobacco house, characterized in that: The invention comprises an assembled track (1) and a self-propelled mobile platform (2), wherein the assembled track (1) is paved on the floor of a tobacco flue-curing room, and the self-propelled mobile platform (2) is slidably arranged on the assembled track (1) and moves forward and backward in the tobacco flue-curing room along the path paved by the assembled track (1); a supporting steel frame (7) is arranged on the self-propelled mobile platform (2), and a personnel standing platform (9) is connected to the supporting steel frame (7) by a lifting mechanism (8); the lifting mechanism (8) controls the lifting of the personnel standing platform (9) to adjust its height; a lifting and conveying mechanism (3) is arranged on one side of the personnel standing platform (9) on the self-propelled mobile platform (2), and clamps (4) are symmetrically installed on the lifting and conveying mechanism (3), and the clamps (4) are used to clamp tobacco clips or tobacco rods, and the lifting and conveying mechanism (3) controls the clamps (4) to move up and down to achieve tobacco leaf lifting.
2. The self-propelled lifting and unloading tobacco leaf platform for a flue-cured tobacco house according to claim 1, characterized in that: The lifting and conveying mechanism (3) comprises two sets of synchronous belt slides (301) vertically arranged on the self-propelled mobile platform (2), the two sets of synchronous belt slides (301) are arranged in parallel, a slider (304) is slidably installed on the synchronous belt slides (301), the clamp (4) is installed on the slider (304) and is arranged relative to each other, a lifting motor (302) is installed on the self-propelled mobile platform (2), the output end of the lifting motor (302) is connected to the synchronous wheel in one set of synchronous belt slides (301), a transmission shaft (303) is installed between the synchronous wheels of the two sets of synchronous belt slides (301), and the synchronous operation of the two sets of synchronous belt slides (301) is achieved through the transmission shaft (303).
3. The self-propelled lifting and unloading tobacco leaf platform for a flue-cured tobacco house according to claim 1, characterized in that: The clamp (4) comprises a mounting block (401), an outer channel steel (402) and a clamp seat (405), wherein the mounting block (401) is fixedly mounted on a slider (304) of the lifting and conveying mechanism (3), the outer channel steel (402) is located on the inner side of the mounting block (401), the outer channel steel (402) and the mounting block (401) are hinged together by two parallel movable rods (403) to form a parallelogram linkage mechanism, and a driving member for controlling its deformation is provided in the parallelogram linkage mechanism, and the inner side of the outer channel steel (402) slides The movable sleeve is provided with a clamping seat (405), and the clamping seat (405) is installed in the outer channel steel (402) through an elastic reset member. A clearance groove (406) is opened above the clamping seat (405), and a pressure plate (407) is rotatably connected in the clearance groove (406). During the deformation process of the parallelogram linkage driven by the driving member, the outer channel steel (402) is driven to deviate left and right, so that the clamping seat (405) is retracted relative to the outer channel steel (402), and the outer channel steel (402) pushes the pressure plate (407) to flip from a vertical state to a horizontal state, thereby providing a clamping limit for the cigarette clamp.
4. The self-propelled lifting and unloading tobacco leaf platform for a flue-curing tobacco house according to claim 3, characterized in that: An elastic pull cord (408) is further connected between the pressing plate (407) and the clamping seat (405) to provide an automatic vertical reset function for the pressing plate (407).
5. The self-propelled lifting and unloading tobacco leaf platform for a flue-cured tobacco house according to claim 1, characterized in that: The lifting mechanism (8) includes a bottom plate (801) and a top plate (802) arranged above and below, wherein the bottom plate (801) is fixed above the supporting steel frame, and the top plate (802) is fixed below the personnel standing platform (9). A scissors fork (804) is provided between the bottom plate (801) and the bottom plate (801), and the upper and lower ends of one side of the scissors fork (804) are hinged on the bottom plate (801) and the top plate (802). Straight grooves (803) are horizontally opened on the bottom plate (801) and the top plate (802). The upper and lower ends of the other side of the scissors fork (804) are slidably fitted in the straight groove (803) through a pin shaft (805). The upper and lower ends of the scissors fork (804) are respectively installed with connecting rods (806), and the two connecting rods (806) are connected by an electric push rod 2 (404).
6. The self-propelled lifting and unloading tobacco leaf platform for a flue-curing tobacco house according to claim 3, characterized in that: The elastic reset member includes a guide rod (410) fixed on the inner side of the clamp seat (405), the outer end of the guide rod (410) movably passes through the outer channel steel (402), and a spring (409) is mounted on the guide rod (410), and the two ends of the spring (409) are respectively fixed on the outer channel steel (402) and the clamp seat (405).
7. The self-propelled lifting and unloading tobacco leaf platform for a flue-curing tobacco house according to claim 1, characterized in that: The assembled track (1) is composed of a running guide rail (101) and an intermediate connecting frame (102). The two running guide rails (101) are arranged in parallel, and the head and tail of the running guide rails (101) are spliced together through the intermediate connecting frame (102).
8. The self-propelled lifting and unloading tobacco leaf platform for a flue-curing tobacco house according to claim 1 or 7, characterized in that: The self-propelled mobile platform (2) comprises a platform plate (201), a drive axle (202) and running wheels (203). The drive axles (202) are provided at the left and right ends below the platform plate (201). Running wheels (203) are installed at both ends of the drive axle (202). The running wheels (203) are rollingly connected to the running guide rails (101).
9. The self-propelled lifting and unloading tobacco leaf platform for a flue-curing tobacco house according to claim 5, characterized in that: A telescopic guide column (10) is vertically installed between the platform plate (201) and the personnel standing platform (9), and the telescopic guide column (10) is located on one side of the straight groove (803) of the automatic lifting mechanism (8).
10. The self-propelled lifting and unloading tobacco leaf platform for a flue-curing tobacco house according to claim 1, characterized in that: The lifting and conveying mechanism (3) is provided with a sensor module, which includes a plurality of position sensors (13) arranged on a synchronous belt slide (301), and the arrangement positions of the position sensors (13) are consistent with the lifting height requirements of the tobacco leaves.