Anti-blocking blowpipe structure of cotton picker
By introducing branch air ducts and agitation components into the cotton harvester, the problem of blockage in the vertical direction of the cotton harvester is solved by using airflow and mechanical agitation to break up the cotton shed layer, thus achieving efficient and automated cotton conveying.
Patent Information
- Application Number
- CN202423109018.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2034-12-17
AI Technical Summary
Existing cotton harvesters are prone to creating overhead gaps in the vertical direction during cotton transport, leading to blockages and affecting harvesting efficiency and quality.
Branch air pipes and agitation components are installed inside the cotton collection box. The air pipes introduce airflow to break up the overhead layer, and the mechanical agitation of the agitation rod prevents cotton from accumulating and clogging.
It effectively prevents cotton from clogging in the vertical direction, improves conveying efficiency and automation level, saves energy, reduces maintenance frequency, and ensures smooth cotton conveying.
Smart Images
Figure CN223626438U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to cotton picking machine technical field, concretely is cotton picking machine anti -blocking blow -off pipe structure. BACKGROUND
[0002] Cotton picking machine mainly relies on pneumatic conveying system to complete the collection and conveying of cotton during the cotton harvesting process. Specifically, the picking head part of the cotton picking machine is equipped with a blow-off pipe, which introduces high-speed airflow into the cotton conveying channel through two bifurcated blow-off pipes. At the rear of the cotton conveying channel, a negative pressure air suction door is provided, which can produce a certain negative pressure effect. When the cotton falls from the cotton stripping cylinder of the picking head into the bottom of the cotton conveying channel, the cotton will be subjected to the double action of suction from the front and blowing force from the rear. This front suction and rear blowing pneumatic force enables the cotton to be smoothly conveyed along the cotton conveying channel to the designated position, thereby completing the entire cotton collection and conveying process. Through this pneumatic conveying method, the cotton picking machine can efficiently and quickly complete the harvesting work of a large area of cotton field, greatly improving the efficiency and quality of cotton harvesting.
[0003] The existing technology has high-speed airflow (50m / s-70m / s) at the bottom of the cotton conveying, which makes it difficult for cotton to block at the bottom. However, due to the adhesion of cotton branches, dust, etc. on the side plate, an overhead layer is easily formed in the height direction, causing the bottom to be hollow and the middle to be blocked, thereby forcing the cotton picking machine to stop working. Therefore, there is an urgent need to invent a blow-off pipe that can prevent cotton from blocking at the middle position in the height direction. SUMMARY
[0004] The utility model provides a kind of cotton picking machine anti-blocking blow-off pipe structure to solve the technical problem that existing cotton picking machine is easy to form overhead layer in height direction to cause obstruction.
[0005] According to one aspect of the utility model, a kind of cotton picking machine anti-blocking blow-off pipe structure is provided, including picking head box and the blow-off pipe of being arranged on picking head box, picking head box bottom side is provided with cotton outlet, the blow-off pipe includes front blow-off pipe and rear blow-off pipe, the air outlet of front blow-off pipe is located picking head box bottom side away from cotton outlet, and the air outlet of front blow-off pipe is towards cotton outlet, the air outlet of rear blow-off pipe is located cotton outlet position, and the air outlet of blow-off pipe is towards the outside of cotton outlet.
[0006] Optionally, an agitating assembly for agitating the cotton in the picking head box is provided in the picking head box, the agitating assembly includes an agitating rod and a motor for driving the agitating rod to oscillate, and the agitating rod extends into the easily blocked area of the picking head box.
[0007] Optionally, a branch blow-off pipe is provided in the picking head box, one end of the branch blow-off pipe is in communication with the front blow-off pipe, and the other end of the branch blow-off pipe extends above the easily blocked area of the picking head box.
[0008] Optionally, the branch blowing pipe is rotatably connected with the front blowing pipe, and the output shaft of the motor is connected with the branch blowing pipe to drive the branch blowing pipe to swing, and the stirring rod is fixed on the branch blowing pipe.
[0009] Optionally, the position where the branch blowing pipe is connected with the front blowing pipe is higher than the top of the head box.
[0010] Optionally, the front blowing pipe and the rear blowing pipe are connected with the main pipeline, and the cross-sectional area of the branch blowing pipe is not greater than 20% of the cross-sectional area of the main pipeline.
[0011] Optionally, the branch blowing pipe and the front blowing pipe are connected through a flexible pipe.
[0012] Optionally, the output shaft of the motor is coaxial with the rotation shaft of the branch blowing pipe, and the output shaft of the motor is connected with the branch blowing pipe through a rotation pair.
[0013] Optionally, a base is arranged on the top of the head box, and the motor is arranged on the base.
[0014] Optionally, the branch blowing pipe is detachably connected with the stirring rod, and the stirring rod is fixed on the branch blowing pipe through a fixing device.
[0015] In summary, the present application has at least one of the following beneficial technical effects:
[0016] The branch blowing pipe is arranged on the upper portion of the front blowing pipe, and the introduced branch airflow blows the attached cotton from the height direction to destroy the formation condition of the overhead layer; secondly, the stirring rod is fixed on the branch blowing pipe, and the stirring rod further destroys the overhead layer skeleton formed by the cotton and the cotton branches with the swing of the blowing pipe, so that the plugging phenomenon of the overhead layer is fundamentally prevented. In addition, other advantages of the present application include: the branch blowing pipe is directly connected with the front blowing pipe, and no additional air pump is needed, so that the energy and cost are saved; the automatic swing of the branch blowing pipe and the synchronous work of the stirring rod are realized through the motor driving, so that manual intervention is not needed, and the automation level is improved; the combination of the blowing pipe and the stirring rod can eliminate the airflow dead angle from the three-dimensional space, and the smooth conveying of the cotton is effectively ensured; the branch blowing pipe and the front blowing pipe are connected through a flexible pipe, so that the maintenance is convenient, and the reliability is high.
[0017] In addition to the objects, features, and advantages described above, the present application has other objects, features, and advantages. Hereinafter, the present application will be described in detail with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS
[0018] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application, and are incorporated herein for reference purposes. The application is best understood from the following detailed description when read in connection with the accompanying drawings.
[0019] Figure 1 The utility model structural schematic diagram.
[0020] Legend:
[0021] 1, branch blowout; 2, hose; 3, motor; 4, rotary pair; 5, base; 6, branch blow pipe; 7, fixer; 8, agitating rod; 9, front blow pipe; 10, rear blow pipe; 11, easy block area. DETAILED DESCRIPTION
[0022] The embodiments of the utility model are explained in detail below in combination with the drawings, but the utility model can be implemented in multiple different ways limited and covered by the following.
[0023] The embodiments of the utility model are explained in detail below in combination with the drawings, but the utility model can be implemented in multiple different ways limited and covered by the following. Figure 1 The application is further explained in detail.
[0024] The embodiments of the application disclose a cotton picking machine anti-blocking blow pipe structure.
[0025] Refer to Figure 1 The cotton picking machine anti-blocking blow pipe structure includes a pickup box and a blow pipe arranged on the pickup box, the bottom side of the pickup box is provided with a cotton outlet, the blow pipe includes a front blow pipe 9 and a rear blow pipe 10, the air outlet of the front blow pipe 9 is located at the bottom side of the pickup box away from the cotton outlet, and the air outlet of the front blow pipe 9 faces the cotton outlet, the air outlet of the rear blow pipe 10 is located at the position of the cotton outlet, and the air outlet of the blow pipe faces outward from the cotton outlet.
[0026] The front blow pipe 9 and the rear blow pipe 10 are cooperated to optimize the cotton conveying path, and effectively prevent the cotton from accumulating or blocking in the pickup box. The air outlet of the front blow pipe 9 is located at the bottom side of the pickup box away from the cotton outlet, and the airflow direction faces the cotton outlet, so that the cotton is pushed to flow to the cotton outlet by the airflow, avoiding the cotton from staying in the pickup box; the air outlet of the rear blow pipe 10 is located at the position of the cotton outlet, and the air outlet direction faces outward from the cotton outlet, so that the exhaust flow rate of the cotton outlet is strengthened, the discharge of the cotton is further accelerated, and the cotton is prevented from accumulating at the outlet. The overall structure forms a continuous airflow channel through the front and rear blow pipes 10, ensures that the cotton is smoothly conveyed from the pickup box to the outside of the cotton outlet, and effectively solves the blocking problem that may occur in the conveying process of the cotton picking machine, improves the conveying efficiency and the harvesting effect.
[0027] The stirring assembly is arranged in the header box and comprises a stirring rod 8 and a motor 3 for driving the stirring rod 8 to swing, and the stirring rod 8 extends into the easy-blocking area 11 of the header box. The cotton in the header box is stirred by the stirring assembly to prevent the cotton from caking or forming an overhead layer in the header box, thereby effectively avoiding the blocking problem. The working principle is that the stirring rod 8 extends into the easy-blocking area 11 of the header box and swings under the driving of the motor 3, the cotton is dispersed by mechanical stirring, the overhead layer framework formed by the cotton and cotton branches is destroyed, and the cotton is kept in a loose state and smoothly flows to the cotton outlet. The motor 3 drives the stirring rod 8 to automatically operate without manual intervention, and the surface of the stirring rod 8 is designed to be smooth to prevent the cotton from adhering, thereby ensuring the reliability of long-term operation. The structure can eliminate the possibility of cotton blocking from the source, ensure the smoothness of the conveying channel, and improve the working efficiency and stability of the cotton picker.
[0028] A branch blowing pipe 6 is arranged in the header box, one end of the branch blowing pipe 6 is communicated with the front blowing pipe 9, and the other end of the branch blowing pipe 6 extends above the easy-blocking area 11 of the header box. The airflow is guided to above the easy-blocking area 11 of the header box through the branch blowing pipe 6, effectively preventing the cotton from accumulating or adhering in the height direction, and further avoiding the blocking problem. One end of the branch blowing pipe 6 is communicated with the front blowing pipe 9 to introduce the airflow from the front blowing pipe 9, and the other end extends above the easy-blocking area 11 of the header box, the cotton in the easy-blocking area 11 is blown away by the high-speed airflow to keep it in a loose state and timely fall into the conveying channel. The position and airflow direction of the branch blowing pipe 6 are optimized and designed, which not only covers the easy-blocking area 11, but also ensures that the main airflow performance is less affected, and at the same time, the flexibility of the airflow sealing and swinging is ensured through a flexible connection mode. The overall effect is to eliminate the cotton accumulation conditions in the easy-blocking area 11 through the active intervention of the airflow, to ensure the smooth operation of the conveying channel, thereby improving the anti-blocking performance and working efficiency of the cotton picker.
[0029] The branch blowing pipe 6 is rotatably connected with the front blowing pipe 9, the output shaft of the motor 3 is connected with the branch blowing pipe 6 to drive the branch blowing pipe 6 to swing, and the stirring rod 8 is fixed on the branch blowing pipe 6. By rotatably connecting the branch blowing pipe 6 with the front blowing pipe 9 and driving the branch blowing pipe 6 to swing by the motor 3, and fixing the stirring rod 8 on the branch blowing pipe 6, the combined action of airflow and mechanical stirring is realized, effectively solving the problem that the cotton is easily blocked in the conveying process. The branch blowing pipe 6 swings under the driving of the output shaft of the motor 3, so that the branch airflow covers the easy-blocking area 11 of the header box, and the cotton adhered or accumulated is blown away by the high-speed airflow; at the same time, the stirring rod 8 swings synchronously with the branch blowing pipe 6, and the overhead layer framework formed by the cotton and cotton branches is further destroyed by mechanical stirring to prevent the cotton from gathering and blocking in the height direction.
[0030] The connection position of the branch blowing pipe 6 and the front blowing pipe 9 is designed above the top of the header box. During the conveying of cotton, cotton particles may deviate from the main airflow direction due to gravity or airflow disturbance, especially at lower pipe connection positions, which can easily adhere or accumulate, causing blockage problems. By setting the connection point of the branch blowing pipe 6 and the front blowing pipe 9 above the top of the header box, this phenomenon can be effectively avoided. The connection position above the top of the header box limits the gravity effect on the cotton in the conveying path, and the cotton mainly moves along the main airflow direction during the conveying process. The height difference between the inlet of the branch blowing pipe 6 and the normal conveying trajectory of the cotton makes it difficult for cotton to enter the branch pipe, and even if a small amount of cotton approaches the branch pipe due to airflow disturbance, it will quickly fall back into the conveying channel of the header box under the action of gravity, thereby ensuring the smoothness of the branch blowing pipe 6.
[0031] This design also fully considers the cooperation of airflow direction. The front blowing pipe 9 provides strong and stable airflow as the main source of airflow, and the branch blowing pipe 6 at a high position diverts a part of the airflow for processing the easy-to-block area, but due to the height difference, the stability of the main airflow is maintained and is not significantly disturbed by the branch diversion. At the same time, the inlet direction and position of the branch blowing pipe 6 are optimized to effectively cover the easy-to-block area and avoid excessive airflow interference with the main conveying channel. The high connection also has the advantage of easy maintenance. Since cotton is difficult to enter the branch blowing pipe 6, the possibility of pipe blockage is reduced, thereby reducing the frequency of cleaning and maintenance, improving the reliability and operating efficiency of the equipment. Overall, this design ensures the smoothness of the branch blowing pipe 6 and the stability of the airflow through the reasonable use of height difference and scientific optimization of airflow direction, providing an important guarantee for the efficient operation of the cotton picker
[0032] The cross-sectional area of the branch blowing pipe 6 is not greater than 20% of the main pipeline. By connecting the front blowing pipe 9 and the rear blowing pipe 10 to the main pipeline and limiting the cross-sectional area of the branch blowing pipe 6 to be not more than 20% of the main pipeline, the airflow balance and conveying efficiency of the entire blowing system are ensured. The front blowing pipe 9 and the rear blowing pipe 10 introduce airflow from the main pipeline and are responsible for pushing cotton towards the cotton outlet and enhancing the discharge capacity of the cotton outlet, respectively, while the branch blowing pipe 6 diverts from the main pipeline for processing the easy-to-block area 11. The limitation of the cross-sectional area of the branch blowing pipe 6 ensures that the diverted airflow does not significantly affect the flow rate and stability of the main airflow of the main pipeline, thereby maintaining the blowing efficiency and stable operation of the entire system.
[0033] The branch blowing pipe 6 is connected with the front blowing pipe 9 through the hose 2. The connection of the branch blowing pipe 6 and the front blowing pipe 9 through the hose 2 provides good sealing and flexibility, while allowing the branch blowing pipe 6 to swing under the drive of the motor 3. The hose 2 connection ensures that there is no leakage of air flow during the flow splitting process, maintaining the stability and effectiveness of the air flow; in addition, the flexible design of the hose 2 can adapt to the reciprocating swing of the branch blowing pipe 6, avoiding stress concentration or damage caused by rigid connection. The fixing method between the branch blowing pipe 6 and the hose 2 includes clamp fixing, using metal or plastic clamps to wrap the hose around the branch blowing pipe interface and tighten to achieve firm connection; flange fixing, the flange at the end of the branch blowing pipe and the hose is used to clamp the hose with bolts to ensure sealing; compression joint fixing, using a joint with a locking mechanism to insert the hose into the branch blowing pipe interface and clamp it with a compression ring or sealing ring; threaded connection, matching threads are designed on the branch blowing pipe interface and the hose joint, and the connection is achieved by screwing; adhesive fixing, using sealant or industrial glue to directly bond the hose and blowing pipe interface, suitable for low pressure occasions; plug-in fixing, inserting the hose into the blowing pipe flared part and locking it with an internal rubber sealing ring or clamp; heat shrink sleeve fixing, shrinking the heat shrink sleeve by heating to wrap the connection part of the hose and blowing pipe; spring clip fixing, using elastic steel wire clips or spring clips to provide clamping force at the connection between the hose and the blowing pipe; various methods can be selected according to actual needs, taking into account firmness, sealing and ease of disassembly and assembly.
[0034] The output shaft of the motor 3 is coaxial with the rotating shaft of the branch blowing pipe 6, and the output shaft of the motor 3 is connected with the branch blowing pipe 6 through a rotating pair. The coaxial design of the motor 3 output shaft can reduce the energy loss caused by axial deviation, improve the accuracy and smoothness of the branch blowing pipe 6 swing; the application of rotating pair further enhances the flexibility and durability of the branch blowing pipe 6 when swinging, while effectively reducing mechanical wear. The rotating pair can adopt the form of sliding bearing, rolling bearing or universal joint, etc., to meet the requirements of different working environments for rotation accuracy and carrying capacity, so as to ensure the reliability and efficiency of the whole anti-blocking system in long-time and high-intensity operation
[0035] A base 5 is provided on the top of the pickup box, and the motor 3 is installed on the base 5. The base 5 is provided on the top of the pickup box, and the motor 3 is installed on the base 5, which provides stable support and reasonable layout, ensuring that the vibration of the motor 3 during operation does not affect the normal work of the pickup box. The position design of the base 5 facilitates the connection of the motor 3 and the branch blowing pipe 6, while avoiding the problem of cotton accumulation or blockage caused by the installation of the motor 3 inside the pickup box. The top base 5 also facilitates the installation, debugging and maintenance of the motor 3, improving the reliability and working efficiency of the system, and optimizing the overall structure layout of the cotton picker, making the equipment more compact and efficient.
[0036] The branch blowing pipe 6 and the stirring rod 8 are detachably connected, and the stirring rod 8 is fixed on the branch blowing pipe 6 through the fixer 7. The branch blowing pipe 6 and the stirring rod 8 are designed to be detachably connected, and the stirring rod 8 is fixed on the branch blowing pipe 6 through the fixer 7, so that the installation and disassembly of the stirring rod 8 are more convenient. This design facilitates the replacement, cleaning or maintenance of the stirring rod 8 during operation. The detachable connection mode of the branch blowing pipe 6 and the stirring rod 8 includes: threaded connection, the stirring rod is fixed on the branch blowing pipe through threads, which is convenient for tightening and disassembly; buckle connection, fixed by elastic buckle or quick release device, and separated by pressing or sliding the buckle when disassembled; pin shaft connection, fixed by inserting a pin shaft or a positioning pin, usually equipped with a split pin or a spring pin to prevent loosening; clamping connection, fixed by using a clamp or a clamp, suitable for occasions that need frequent adjustment or maintenance; plug-in connection, the stirring rod is inserted into the special socket of the branch blowing pipe, and the positioning structure or elastic device is matched to ensure stability; magnetic connection, fixed by magnet adsorption, convenient for quick disassembly and reinstallation, and each mode can be selected according to actual needs, giving consideration to firmness, durability and disassembly convenience.
[0037] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can be variously changed and modified. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A cotton picker anti-blocking air blowing pipe structure, characterized in that: it comprises a picking head box and an air blowing pipe arranged on the picking head box, one side of the bottom of the picking head box is provided with a cotton outlet, the air blowing pipe comprises a front air blowing pipe (9) and a rear air blowing pipe (10), the air outlet of the front air blowing pipe (9) is located on the side of the bottom of the picking head box away from the cotton outlet, and the air outlet of the front air blowing pipe (9) faces the cotton outlet, the air outlet of the rear air blowing pipe (10) is located at the position of the cotton outlet, and the air outlet of the air blowing pipe faces outward from the cotton outlet.
2. The cotton picker anti-blocking air blowing pipe structure according to claim 1, characterized in that: an agitating assembly for agitating cotton in the picking head box is arranged in the picking head box, the agitating assembly comprises an agitating rod (8) and a motor (3) for driving the agitating rod (8) to swing, and the agitating rod (8) extends into an easy-blocking area (11) of the picking head box.
3. The cotton picker anti-blocking air blowing pipe structure according to claim 2, characterized in that: a branch air blowing pipe (6) is arranged in the picking head box, one end of the branch air blowing pipe (6) is communicated with the front air blowing pipe (9), and the other end of the branch air blowing pipe (6) extends above the easy-blocking area (11) of the picking head box.
4. The cotton picker anti-blocking air blowing pipe structure according to claim 3, characterized in that: the branch air blowing pipe (6) is rotatably connected with the front air blowing pipe (9), an output shaft of the motor (3) is connected with the branch air blowing pipe (6) to drive the branch air blowing pipe (6) to swing, and the agitating rod (8) is fixed on the branch air blowing pipe (6).
5. The cotton picker anti-blocking air blowing pipe structure according to claim 3, characterized in that: the position where the branch air blowing pipe (6) is connected with the front air blowing pipe (9) is higher than the top of the picking head box.
6. The cotton picker anti-blocking air blowing pipe structure according to claim 3, characterized in that: the front air blowing pipe (9) and the rear air blowing pipe (10) are connected with a main pipe, and the cross-sectional area of the branch air blowing pipe (6) is not greater than 20% of the cross-sectional area of the main pipe.
7. The cotton picker anti-blocking air blowing pipe structure according to claim 4, characterized in that: the branch air blowing pipe (6) and the front air blowing pipe (9) are connected through a flexible pipe (2).
8. The cotton picker anti-blocking air blowing pipe structure according to claim 7, characterized in that: the output shaft of the motor (3) is coaxial with the rotation shaft of the branch air blowing pipe (6), and the output shaft of the motor (3) is connected with the branch air blowing pipe (6) through a rotation pair.
9. The cotton picker anti-blocking air blowing pipe structure according to claim 2, characterized in that: a base (5) is arranged on the top of the picking head box, and the motor (3) is mounted on the base (5).
10. The cotton picker anti-blocking air blowing pipe structure according to claim 3, characterized in that: the branch air blowing pipe (6) is detachably connected with the agitating rod (8), and the agitating rod (8) is fixed on the branch air blowing pipe (6) through a fixer (7).