A cotton stripper and picker
Patent Information
- Application Number
- CN202522419320.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-14
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-11-14
AI Technical Summary
The existing cotton stripper height adjustment has problems with low positioning accuracy and poor locking reliability, resulting in low picking efficiency and severe wear of the cotton stripper.
It adopts a purely mechanical closed-loop structure with a rotating rod head and a fixed rod. Through the cooperation of the rotating rod head and the fixed rod, the cotton stripper can be detachably locked, ensuring that the cotton stripper is maintained in the optimal gap position, absorbing field vibration, and avoiding excessive accumulation or excessive wear.
It significantly improved harvesting efficiency, extended the service life of cotton removers, reduced cotton loss, and increased the harvesting rate.
Smart Images
Figure CN224924273U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of cotton harvester technology, and in particular to a cotton removal device and a cotton harvester. Background Technology
[0002] When a cotton harvester is working, the picking spindle hooks the cotton from the plant, and then the cotton stripper promptly separates it. The vertical gap between the stripper and the picking spindle directly determines the stripping effect: if the gap is too large (the stripper is too high), the cotton on the surface of the picking spindle cannot be effectively removed, causing residual fibers to accumulate continuously at the entrance of the stripper. This can reduce harvesting efficiency or even block the channel and require shutdown for cleaning. If the gap is too small (the stripper is too low), the stripper and the high-speed rotating picking spindle will be excessively squeezed, causing the stripper's toothed plates to wear rapidly in a short time, increasing the picking spindle torque, resulting in additional power consumption and premature spindle failure.
[0003] However, limited by their own structure (such as machining errors of parts and assembly gaps between components) and the influence of the external environment (such as field vibrations), the height of existing cotton strippers is prone to slight drift during operation. Furthermore, operators lack a visual reference and can only rely on experience for repeated adjustments, further amplifying control errors. Therefore, the height adjustment of existing cotton strippers generally suffers from low positioning accuracy and poor locking reliability, making it difficult to maintain the optimal gap under continuous vibration and load variations, thus affecting the cotton removal rate and the service life of key components. Utility Model Content
[0004] The purpose of this application is to provide a cotton removal device and a cotton harvester, which solves the problems of low positioning accuracy and poor locking reliability in the height adjustment of existing cotton removal devices.
[0005] To achieve the above objectives, this application provides a cotton removal device, comprising:
[0006] frame;
[0007] The cotton removal device is mounted on the frame in a height-adjustable manner;
[0008] The lifting adjustment mechanism is rotatably mounted on the frame and is used to drive the cotton remover to move up and down. The lifting adjustment mechanism includes a rotating rod head that extends out of the frame.
[0009] A fixed rod, one end of which is connected to the rotating rod head and the other end is detachably mounted on the frame, is used to fix the rotating rod head to limit the lifting and lowering movement of the cotton remover.
[0010] In some embodiments, a pin structure is provided at the connection between the fixing rod and the frame, the pin structure being used to achieve a detachable connection between the fixing rod and the frame.
[0011] In some embodiments, the pin structure includes a socket in the frame and a pin at the end of the fixing rod. The pin engages with the socket to allow the fixing rod to be attached to or detached from the frame.
[0012] In some embodiments, the number of insertion holes is at least two, and the at least two insertion holes are arranged in a circumferential direction. The end of the fixing rod can be selectively inserted into one of the insertion holes to achieve locking of the cotton remover at different height positions.
[0013] In some embodiments, the fixed rod has a polygonal hole at one end near the rotating rod head, and the rotating rod head has a polygonal structure. The rotating rod head is fitted into the polygonal hole, so that when the other end of the fixed rod is fixed to the frame, the rotation of the rotating rod head is restricted, and when the other end of the fixed rod is detached from the frame, the fixed rod drives the rotating rod head to rotate to adjust the height of the cotton remover.
[0014] In some embodiments, an angle scale ring is provided on the outer periphery of the rotating rod head, and a pointer is provided at the corresponding position on the frame for visually displaying the real-time height position of the cotton remover.
[0015] In some embodiments, the frame is provided with an openable protective cover at the extended position of the rotating rod head. One end of the protective cover is hinged to the frame, and the other end is fixed by magnetic attraction. It is used to cover the rotating rod head and the fixed rod in the non-adjusted state to prevent accidental contact.
[0016] In some embodiments, the cotton removal device includes:
[0017] Sensor head;
[0018] The sensor plate, positioned opposite the sensor head, is configured to deform when cotton accumulates in the cotton remover, thereby triggering the sensor head.
[0019] The controller, connected to the sensor head signal, is used to control the alarm to sound after receiving the trigger signal from the sensor head, so as to prompt the staff to clean up the cotton accumulated on the cotton remover.
[0020] In some embodiments, the cotton remover includes a movable shaft and a first gear disposed on the movable shaft. A bushing is provided on the side of the frame near the cotton remover. The movable shaft is movably embedded in the bushing by a thread. The lifting adjustment mechanism also includes a shaft portion and a second gear disposed on the shaft portion. The second gear cooperates with the first gear to drive the cotton remover to move up and down.
[0021] This application also provides a cotton harvester, including the cotton removal device of any of the above.
[0022] Compared to the aforementioned background technology, the cotton removal device provided in this application includes a frame, a cotton remover, a lifting and adjusting mechanism, and a fixing rod. The cotton remover is vertically and vertically mounted on the frame; the lifting and adjusting mechanism is rotatably mounted on the frame and is used to drive the cotton remover to move vertically; the lifting and adjusting mechanism includes a rotating rod head extending out of the frame; one end of the fixing rod is connected to the rotating rod head, and the other end is detachably mounted on the frame; the fixing rod is used to fix the rotating rod head to limit the vertical movement of the cotton remover.
[0023] The beneficial effects of this cotton stripping device mainly include: by using a purely mechanical closed loop of rotating rod and fixed rod, the lifting adjustment and position locking of the cotton stripper are separated into two independent but continuous actions. The rotating rod can instantly stop at the optimal gap position between the cotton stripper and the spindle. Then, one end of the fixed rod directly grips the rotating rod, while the other end forms a rigid, detachable node with the frame, instantly switching the adjustment mechanism from a floating state to a fixed state. In this way, field vibrations are absorbed by the rigid rod and no longer transmitted back to the cotton stripper. Therefore, the height of the cotton stripper can be mechanically locked after a single adjustment, avoiding cotton accumulation caused by excessive height and rapid wear caused by excessive low height. This fundamentally solves the defects of low height adjustment positioning accuracy and poor locking reliability in current cotton strippers, significantly improving the harvesting rate and extending the service life of the cotton stripper. Attached Figure Description
[0024] To more clearly illustrate the technical solutions in the embodiments of this application or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.
[0025] Figure 1 This is a schematic diagram of the cotton removal device in the embodiments of this application.
[0026] in:
[0027] 10-Frame, 11-Socket, 12-Shaft sleeve;
[0028] 20 - Cotton remover, 21 - First gear, 22 - Cotton remover disc;
[0029] 30 - Lifting and adjusting mechanism; 31 - Rotating rod head; 32 - Second gear;
[0030] 40 - Fixed rod;
[0031] 50-Pin;
[0032] 60 - Sensor head;
[0033] 70 - Sensor panel;
[0034] 80 - Insulating mat;
[0035] 90-Spindle removal. Detailed Implementation
[0036] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0037] To enable those skilled in the art to better understand the present application, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0038] It should be noted that the directional terms such as "upper end," "lower end," "left side," and "right side" mentioned below are defined based on the accompanying drawings in the instruction manual.
[0039] Please refer to Figure 1 , Figure 1 This is a schematic diagram of the cotton removal device in the embodiments of this application.
[0040] The cotton removal device provided in this application includes a frame 10, a cotton remover 20, a lifting and adjusting mechanism 30, and a fixing rod 40.
[0041] It should be noted that when the cotton harvester is picking cotton, the cotton remover 20 removes the cotton wrapped around the picking spindle 90. Specifically, the cotton remover 20 is equipped with cotton-removing discs 22 arranged in an axial array, with the cotton-removing discs 22 and the picking spindle 90 arranged alternately vertically. When the height of the cotton remover 20 is adjusted too high, the cotton on the picking spindle 90 cannot be completely removed, easily causing cotton to accumulate at the cotton remover 20. When the height of the cotton remover 20 is too low, it will cause the cotton remover 20 and the picking spindle 90 to be too tightly packed, resulting in rapid wear of the cotton remover 20.
[0042] Therefore, the cotton remover 20 of this application is vertically mounted on the frame 10, and the lifting adjustment mechanism 30 is rotatably mounted on the frame 10. The lifting adjustment mechanism 30 is used to drive the cotton remover 20 to move up and down. The lifting adjustment mechanism 30 includes a rotating rod head 31 extending out of the frame 10. One end of the fixing rod 40 is connected to the rotating rod head 31, and the other end is detachably mounted on the frame 10. The fixing rod 40 is used to fix the rotating rod head 31 to limit the lifting movement of the cotton remover 20.
[0043] With this setup, the lifting and locking of the cotton remover 20 is separated into two independent but continuous actions through the purely mechanical closed loop of the rotating rod head 31 and the fixed rod 40. The rotating rod head 31 can stop instantly at the optimal gap position between the cotton remover 20 and the spindle 90. Then, one end of the fixed rod 40 is directly clamped to the rotating rod head 31, and the other end forms a rigid detachable node with the frame 10, instantly switching the adjustment mechanism from a floating state to a fixed state. In this way, field vibrations are absorbed by the rigid rod and no longer transmitted back to the cotton remover 20.
[0044] Therefore, the height of the cotton extractor 20 can be mechanically locked once, which avoids the accumulation of cotton left behind when it is too high, and also eliminates the rapid wear caused by excessive pressure when it is too low. This fundamentally solves the defects of low positioning accuracy and poor locking reliability of the current cotton extractor 20 height adjustment, significantly improves the cotton removal rate and extends the service life of the cotton extractor 20.
[0045] In some embodiments, a pin structure is provided at the connection between the fixing rod 40 and the frame 10, and the pin structure is used to realize the detachable connection between the fixing rod 40 and the frame 10.
[0046] In this embodiment, the pin structure includes a socket 11 provided in the frame 10 and a pin 50 provided at the end of the fixing rod 40. The pin 50 cooperates with the socket 11 to realize the assembly and disassembly of the fixing rod 40 and the frame 10.
[0047] As can be seen, the pin structure (insertion hole 11 + pin 50) requires no special tools; the assembly or separation of the fixing rod 40 and the frame 10 can be completed simply by inserting and pulling, significantly shortening downtime for maintenance and reducing labor intensity. Meanwhile, the pin 50 and the insertion hole 11 have a precision cylindrical fit, which naturally eliminates radial clearance. Of course, the mating surfaces can be further designed with a taper or chamfer to create a self-locking effect, resisting vibrations and impacts generated by the cotton remover 20 during operation and preventing malfunctions such as loosening or slippage.
[0048] In some embodiments, the number of insertion holes 11 is at least two, and the at least two insertion holes 11 are arranged in a circumferential direction. The end of the fixing rod 40 can be selectively inserted into one of the insertion holes 11 to achieve locking of the cotton remover 20 at different height positions.
[0049] It should be noted that at least two insertion holes 11 are arranged along the circumference, which is equivalent to pre-setting multiple settings on the frame 10. Users can quickly switch the fixing rod 40 to different insertion holes 11 according to changes in cotton variety, moisture content, or yield, so as to achieve stepped adjustment of the height of the cotton remover 20, ensure the optimal cotton removal gap, improve the quality of operation, and reduce seed cotton damage.
[0050] Of course, depending on actual needs, the number of sockets 11 can be 2-5.
[0051] In some embodiments, the fixed rod 40 has a polygonal hole at one end near the rotating rod head 31, and the rotating rod head 31 has a polygonal structure. The rotating rod head 31 is fitted into the polygonal hole, so that when the other end of the fixed rod 40 is fixed to the frame 10, the rotation of the rotating rod head 31 is restricted, and when the other end of the fixed rod 40 is detached from the frame 10, the fixed rod 40 drives the rotating rod head 31 to rotate to adjust the height of the cotton remover 20.
[0052] In this way, the fixing rod 40 serves as both a "locking pin" and an "adjusting handle." When one end is inserted into the frame 10, it engages circumferentially with the rotating rod head 31 through its polygonal hole, instantly locking the rotation of the rotating rod head 31. When the frame 10 is removed, the same fixing rod 40 can be directly used as a wrench to rotate the rotating rod head 31, thereby adjusting the height of the cotton remover 20. The entire machine eliminates the need for additional wrenches, locking nuts, or brakes, minimizing the number of parts. No tools are required on-site; locking / unlocking and rotation adjustment can be completed with just one insertion and removal, significantly reducing adjustment time when changing product types or locations and improving equipment utilization.
[0053] Of course, polygons are commonly made of hexagons, octagons or dodecagons. The polygonal surfaces share the shear force, and their load-bearing capacity is much higher than that of single-point set screws, thus extending the service life of the fit.
[0054] It should be noted that the rotating rod head 31 can only be rotated after the fixed rod 40 is completely pulled out of the frame 10; once inserted into the frame 10, the polygonal hole will automatically engage and lock. The operator can directly judge the locking status by visually checking whether it is inserted in place, so as to avoid the cotton remover from sinking or tilting unexpectedly due to "false locking" and ensure the safety of personnel and equipment.
[0055] In some embodiments, an angle scale ring is provided on the outer periphery of the rotating rod head 31, and a pointer is provided at the corresponding position on the frame 10 for visually displaying the real-time height position of the cotton remover 20. Of course, the scale ring can be laser-marked or stamped in one piece, and the pointer is just a small sheet metal part.
[0056] In this way, the angle scale ring and pointer form a mechanical height gauge. The operator no longer needs to repeatedly bend over to measure or rely on experience to try turning it. They can instantly read the real-time height of the cotton remover 20 simply by observing the scale indicated by the pointer, achieving one-click positioning and significantly reducing reliance on skilled workers. The scale ring can also be color-coded to distinguish dangerous areas (e.g., red indicates the extreme low position where the blade will collide). Once the operator sees the pointer enter the red zone, they can stop immediately to avoid hard collision accidents. At the same time, the scale ring rotates together with the rotating rod head 31, preventing manual deviation and eliminating false readings.
[0057] In some embodiments, the frame 10 is provided with an openable protective cover at the extended position of the rotating rod head 31. One end of the protective cover is hinged to the frame 10, and the other end is fixed by magnetic attraction. It is used to cover the rotating rod head 31 and the fixed rod 40 in the non-adjusted state to prevent accidental contact.
[0058] The magnetic protective cover completely shields the polygonal mating parts of the rotating rod head 31 and the fixed rod 40, preventing hands, clothing corners, cotton rods, etc. from being caught in the rotating body during operation or cleaning, especially when the machine is still running inertia, thus completely eliminating mechanical injuries caused by accidental snagging.
[0059] The hinge and magnetic structure enables "1-second opening and 1-second closing". When adjusting the height, hold the fixing rod 40 with one hand and simply turn the cover with the other hand to open it; after adjustment, release the hand and the magnetic plate will automatically retract and reset. No screws, pins or wrenches are needed throughout the process, which is more time-saving than traditional bolt fixing of the cover.
[0060] In addition, the protective cover can be made of transparent impact-resistant PC board or a transparent window can be made at the corresponding scale ring position, so that the pointer and scale can be observed without opening the cover when reading, thus taking into account both visibility and safety.
[0061] In some embodiments, the cotton removal device includes a sensor head 60, a sensor plate 70, and a controller.
[0062] The sensor head 60 is installed and fixed by the insulating pad 80. The sensor plate 70 is set opposite to the sensor head 60. The sensor plate 70 is configured to deform when cotton accumulates on the cotton remover 20 to trigger the sensor head 60. The controller is connected to the sensor head 60 by signal. The controller is used to control the alarm to sound after receiving the trigger signal from the sensor head 60, so as to prompt the staff to clean the cotton accumulated on the cotton remover 20.
[0063] Specifically, when cotton accumulates in the cotton remover 20, the accumulated cotton will compress the sensor plate 70. Because the sensor plate 70 has a certain degree of flexibility, it will deform and come into contact with the sensor head 60. At this time, the electrical signal connected to the sensor head 60 is activated and transmitted to the controller in the cab, reminding the driver of the cotton blockage. The driver can then stop the machine in time and get out of the vehicle to clear the accumulated cotton from the cotton remover 20, thus preventing damage to the cotton remover 20. This solves the problem that when cotton accumulates in the cotton remover 20, the driver may not notice it in time, resulting in serious damage to the cotton remover 20.
[0064] In some embodiments, the cotton remover 20 includes a movable shaft and a first gear 21 disposed on the movable shaft. A bushing 12 is provided on the side of the frame 10 near the cotton remover 20. The movable shaft is movably embedded in the bushing 12 by means of a thread. The lifting adjustment mechanism 30 also includes a shaft portion and a second gear 32 disposed on the shaft portion. The second gear 32 cooperates with the first gear 21 so that the lifting adjustment mechanism 30 drives the cotton remover 20 to move up and down.
[0065] Understandably, the external thread of the moving shaft and the internal thread of the bushing 12 form a precision helical pair, which can convert the rotational motion of the lifting adjustment mechanism 30 into the axial lifting of the cotton remover 20 in one go; the thread naturally has self-locking properties, and after the lifting is in place, it can stop and lock in place without the need for an additional locking device, completely eliminating the rebound and slippage hazards of traditional chain / wire rope adjustment.
[0066] Meanwhile, the first gear 21 and the second gear 32 form a gear pair, which can amplify the torque applied by the operator standing on the side of the machine to the rotating rod head 31 by 3 to 5 times, easily overcoming the frictional resistance of the threaded pair; at the same time, it allows the shaft of the lifting adjustment mechanism 30 to be arranged in parallel and offset with the moving shaft of the cotton remover 20, avoiding the cotton flow channel and reducing entanglement.
[0067] In summary, the above-mentioned setup not only solves the problem of unstable height control of the cotton remover 20, which easily leads to abnormal wear of the cotton remover 20, but also solves the problem of the driver not being able to detect cotton accumulation in the cotton remover 20 in time, thus causing serious damage to the cotton remover 20.
[0068] The cotton harvester provided in this application includes the cotton removal device described in the above specific embodiments; other parts of the cotton harvester can be referred to in related technologies, and will not be elaborated here.
[0069] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.
[0070] The cotton removal device and cotton harvester provided in this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the solution and core ideas of this application. It should be noted that those skilled in the art can make several improvements and modifications to this application without departing from the principles of this application, and these improvements and modifications also fall within the protection scope of this application.
Claims
1. A cotton removal device, characterized in that, include: frame; The cotton removal device is vertically and adjustablely mounted on the frame; A lifting adjustment mechanism is rotatably mounted on the frame and is used to drive the cotton remover to move up and down. The lifting adjustment mechanism includes a rotating rod head that extends out of the frame. A fixed rod, one end of which is connected to the rotating rod head and the other end is detachably disposed in the frame, is used to fix the rotating rod head to limit the lifting and lowering movement of the cotton remover.
2. The cotton removal device as described in claim 1, characterized in that, A pin structure is provided at the connection between the fixing rod and the frame, and the pin structure is used to realize the detachable connection between the fixing rod and the frame.
3. The cotton removal device as described in claim 2, characterized in that, The pin structure includes a socket in the frame and a pin at the end of the fixing rod. The pin engages with the socket to allow the fixing rod to be attached to or detached from the frame.
4. The cotton removal device as described in claim 3, characterized in that, The number of the insertion holes is at least two, and the at least two insertion holes are arranged in a circumferential direction. The end of the fixing rod can be selectively inserted into one of the insertion holes to lock the cotton remover at different height positions.
5. The cotton removal device as described in claim 1, characterized in that, The fixed rod has a polygonal hole at one end near the rotating rod head. The rotating rod head has a polygonal structure and is fitted into the polygonal hole, so that when the other end of the fixed rod is fixed to the frame, the rotation of the rotating rod head is restricted, and when the other end of the fixed rod is detached from the frame, the fixed rod drives the rotating rod head to rotate to adjust the height of the cotton remover.
6. The cotton removal device as described in claim 1, characterized in that, The outer circumference of the rotating rod head is provided with an angle scale ring, and the corresponding position of the frame is provided with a pointer for visually displaying the real-time height position of the cotton remover.
7. The cotton removal device as described in claim 1, characterized in that, The frame is provided with an openable protective cover at the extended position of the rotating rod head. One end of the protective cover is hinged to the frame, and the other end is fixed by magnetic attraction. It is used to cover the rotating rod head and the fixed rod in the non-adjusted state to prevent accidental contact.
8. The cotton removal device according to any one of claims 1-7, characterized in that, The cotton removal device includes: Sensor head; A sensor plate, disposed opposite to the sensor head, is configured to deform when cotton accumulates in the cotton remover to trigger the sensor head; The controller, connected to the sensor head, is used to control the alarm to sound after receiving the trigger signal from the sensor head, so as to prompt the staff to clean up the cotton accumulated on the cotton remover.
9. The cotton removal device according to any one of claims 1-7, characterized in that, The cotton remover includes a movable shaft and a first gear disposed on the movable shaft. The frame is provided with a bushing on the side near the cotton remover. The movable shaft is movably embedded in the bushing by a thread. The lifting adjustment mechanism also includes a shaft and a second gear disposed on the shaft. The second gear cooperates with the first gear to drive the cotton remover to move up and down.
10. A cotton harvester, characterized in that, Includes the cotton removal device as described in any one of claims 1-9.