Cotton picking head for automatic cotton picker

Abstract

The invention relates to a cotton picking head for an automatic cotton picker, which is applied to the technical field of cotton pickers, and comprises a machine body, a detection mechanism and a cotton picking intelligent detector, the detection mechanism comprises a total detection rod, a plurality of conduction rods corresponding to the picking spindles, and a detection hair disc mounted at the end parts of the conduction rods and propped against the outer rings of the picking spindles; the detection assembly comprises an extrusion chamber arranged at the end part of the total detection rod and close to one side of the detection hair disc, and a detection chamber connected with the machine body; the cotton picking intelligent detector is provided with a damage detection module, a damage analysis module and an early warning module, by adopting the structure, the arranged detection mechanism is used for detecting each row of passing picking spindles, the picking spindles in use are detected in real time, the abrasion state of the picking spindles is known in time, and the picking spindles are prevented from being damaged. And the wear state of the picking spindle on the cotton picking head is automatically judged through the intelligent cotton picking detector, so that the picking spindle can be conveniently overhauled and replaced in time, and the picking effect and the picking rate of the cotton picking head are improved.

Description

Technical Field

[0001] The invention relates to a cotton picking head, in particular to a cotton picking head for an automatic cotton picking machine applied in the technical field of cotton picking machines. Background Art

[0002] my country's cotton planting area is quite extensive. In the past, cotton picking mainly relied on manual labor, which was labor-intensive and inefficient. With the continuous improvement of my country's agricultural mechanization level, the development of large-scale machine-picking cotton has become the general trend of my country's cotton industry, so cotton pickers have appeared on the market. By using cotton pickers, the speed of cotton picking can be effectively increased, creating higher income for cotton pickers.

[0003] The invention patent with publication number CN117678424A discloses a small cotton picking head and a cotton picker having the same, including: a cotton picker, a mounting support connected to the cotton picker, a drive controller arranged on the mounting support, and an intermediate transmission mechanism arranged in the mounting support. The drive controller is used to connect to the central control system in the cab, and the drive controller, the intermediate transmission mechanism and the cotton picker are connected in sequence along the power transmission direction. The drive controller is used to drive the cotton picker to move through the intermediate transmission mechanism, and transmit the speed and torque of the cotton picker to the central control system in real time, so that the driver can issue an adjustment command according to the speed and torque displayed by the central control system, so that the central control system can adjust the speed of the drive controller accordingly, and then adjust the working speed of the cotton picker. It is flexible to adjust the row spacing between adjacent cotton pickers to meet the needs of multi-row spacing harvesting, and is convenient for the maintenance of cotton pickers, and can adjust the speed according to the cotton yield of cotton fields and different cotton rows in different regions.

[0004] When the above scheme is implemented, when picking cotton, the transmission mechanism is mainly used to drive multiple picking spindles to rotate. During the rotation process of the picking spindles, Figure 1 As shown, the sharp teeth on its surface roll up the cotton and separate it from the cotton head. The picking spindle gradually moves to the cotton removing disk with the cotton, and the cotton on the picking spindle is separated by the cotton removing disk to achieve the picking and collection of the cotton on the cotton head. Therefore, the picking effect and the clean picking rate of the cotton picking head when picking cotton are usually determined by the degree of wear of the sharp teeth on the picking spindle. When the cotton picker is working continuously, usually during shutdown maintenance, the maintenance personnel check the wear of the sharp teeth on the picking spindle by visual observation, which may easily lead to untimely replacement of the worn picking spindle, thus affecting the picking effect and the clean picking rate of the cotton picking head. Summary of the invention

[0005] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that when the cotton picker is working continuously, usually during shutdown maintenance, maintenance personnel check the wear of the sharp teeth on the picking spindles by visual observation, which may easily lead to untimely replacement of the worn picking spindles, thereby affecting the picking effect and clean picking rate of the picking head.

[0006] In order to solve the above problems, the present invention provides a cotton picking head for an automatic cotton picking machine, comprising: A machine body, on which a picking spindle drive assembly for driving the picking spindles and a doffer disk drive assembly for driving the doffer disk are respectively installed, the picking spindles are arranged in multiple rows, and each row is provided with multiple picking spindles, and the doffer disks and the picking spindles are arranged correspondingly; The detection mechanism is arranged downstream of the cotton removal plate and corresponds to one row of the picking spindles. The detection mechanism includes a general inspection rod, a plurality of conduction rods corresponding to the picking spindles, and a detection hair disk installed at the end of the conduction rod and abutting against the outer ring of the picking spindles. The end of the conduction rod away from the detection hair disk is connected to the general inspection rod. Both ends of the general inspection rod are provided with detection components and connected to the machine body through the detection components. The detection component includes an extrusion chamber arranged at the end of the general inspection rod and close to one side of the detection hair disk, and a detection chamber connected to the machine body. The detection chamber is connected to the end of the extrusion chamber. Both ends of the inner cavity of the extrusion chamber are slidably connected to the limit plate. The inner cavity of the extrusion chamber is filled with a pressurized liquid located between the two limit plates. The main air pressure sensor is installed in the detection chamber. The cotton picking intelligent detector is arranged on one side of the machine body. The cotton picking intelligent detector is provided with a damage detection module, a damage analysis module and an early warning module. The input end of the damage detection module is connected to the main air pressure sensor signal, the output end of the damage detection module is connected to the damage analysis module signal, and the output end of the damage analysis module is connected to the early warning module signal.

[0007] In the cotton picking head for the above-mentioned automatic cotton picker, the detection mechanism detects each row of picking spindles that passes by, performs real-time detection on the picking spindles in use, promptly understands the wear status of the picking spindles, and automatically determines the wear status of the picking spindles on the cotton picking head through the cotton picking intelligent detector, which facilitates timely inspection and replacement, thereby improving the picking effect and clean picking rate of the cotton picking head.

[0008] As a further improvement of the present application, a limiting block fixed to the inner wall of the extrusion chamber is provided on the side of each limiting plate close to the pressurized fluid, and the two limiting plates are connected in series via an elastic rope passing through the pressurized fluid.

[0009] As a further improvement of the present application, the end sleeve of the general inspection rod is provided with an abutment sleeve abutting against the extrusion chamber, the outer ring of the abutment sleeve is an arc-shaped structure, and the abutment surface between the extrusion chamber and the abutment sleeve is an elastic abutment surface.

[0010] As a further improvement of the present application, the inner cavity of each detection chamber is slidably connected with a balancing piston plate, the main air pressure sensor is installed on the balancing piston plate, the main elastic part is installed on the side of the balancing piston plate away from the extrusion chamber, and the two detection chambers are connected in series at one end away from the extrusion chamber through a balancing tube.

[0011] As another improvement of the present application, a main regulating port is connected to the balance pipe, an air pump is externally connected to the main regulating port, a solenoid valve is installed on the main regulating port, and a sensitive adjustment module is also provided on the cotton picking intelligent detector. The input end of the sensitive adjustment module is connected to the main air pressure sensor signal, and the output end of the sensitive adjustment module is respectively connected to the solenoid valve 1 and the air pump signal.

[0012] As another improvement supplement of the present application, a single inspection tube corresponding to the conduction rod is fixed on the total inspection rod, the end of the conduction rod is plugged into the total inspection rod and extends to the inner cavity of the single inspection tube, the inner cavity of the single inspection tube is slidably connected with a detection piston plate fixed to the end of the conduction rod, a single air pressure sensor is installed at the end of the detection piston plate away from the conduction rod, and the input end of the damage detection module is connected to the single air pressure sensor signal.

[0013] As another improvement supplement of the present application, a single elastic part is installed on the side of the detection piston plate close to the conduction rod, and a single adjustment port is connected to the end of the single detection cylinder away from the conduction rod. A second solenoid valve is installed on the single adjustment port, and the single adjustment port is connected to the output end of the air pump. The input end of the sensitive adjustment module is connected to the signal of the single air pressure sensor, and the output end of the sensitive adjustment module is connected to the signal of the second solenoid valve.

[0014] As another improvement of the present application, a hook surface brush holder is detachably connected to a side of the detection hair disc close to the picking spindle, and a guide ring is fixed on the detection hair disc, and the guide ring is slidably plugged into the conduction rod.

[0015] To sum up, when each row of picking spindles passes through the general inspection rod, the picking spindles will pass through the bottom of the corresponding detection hair plate and contact with the bottom hair surface of the detection hair plate, which will pull the detection hair plate. The sharp teeth on the picking spindles in motion are worn differently, and the forces acting on the detection hair plate are different, and the forces are transmitted to the general inspection rod through the conduction rod. By detecting the stress state of the general inspection rod, the wear state of the corresponding row of picking spindles can be judged, and the wear condition can be understood and judged. By setting up an intelligent cotton picking detector, when the general inspection rod is subjected to force, the general inspection rod will generate an extrusion force on the extrusion chamber. After the extrusion chamber is squeezed, it will generate pressure on the pressurized liquid inside the extrusion chamber. After the pressurized liquid is subjected to pressure, it will push the limit plates at both ends to move toward the inner cavity of the detection chamber, which will compress the gas in the inner cavity of the detection chamber. The main air pressure sensor can detect the air pressure state in the detection chamber in real time, thereby automatically and intelligently judging the wear state of the picking spindles, and promptly reminding the driver and maintenance personnel to perform maintenance and replacement, thereby improving the picking effect and clean picking rate of the cotton picking head. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the ingot picking structure in the prior art; Figure 2 Schematic diagram of a cotton picking head according to the first and second embodiments of the present application; Figure 3This is a schematic diagram of the detection mechanism structure of the first and second implementation modes of the present application; Figure 4 It is a cross-sectional schematic diagram of the detection assembly of the first and second embodiments of the present application; Figure 5 This is a control principle diagram of the cotton picking intelligent detector according to the first embodiment of the present application; Figure 6 It is a cross-sectional schematic diagram of the detection mechanism of the first and second embodiments of the present application; Figure 7 Schematic cross-sectional view of a single inspection tube according to the first and second embodiments of the present application; Figure 8 This is a control schematic diagram of the cotton picking intelligent detector according to the second embodiment of the present application.

[0017] Description of the numbers in the figure: 1. Spindle picking drive assembly; 2. Spindle picking; 3. Doffing disc drive assembly; 4. Doffing disc; 5. Detection disc; 6. Conducting rod; 7. Single inspection cylinder; 8. Total inspection rod; 9. Intelligent cotton picking detector; 10. Hook brush holder; 11. Extrusion chamber; 12. Detection chamber; 13. Abutment sleeve; 14. Elastic abutment surface; 15. Limiting plate; 16. Main air pressure sensor; 17. Balance piston plate; 18. Main elastic member; 19. Balance pipe; 20. Main adjustment port; 21. Guide ring; 22. Detection piston plate; 23. Single air pressure sensor; 24. Single adjustment port; 25. Single elastic member. DETAILED DESCRIPTION

[0018] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0019] The first implementation method: Figure 2-Figure 5 A cotton picking head for an automatic cotton picker is shown, comprising a machine body, a detection mechanism and an intelligent cotton picking detector 9, on which a spindle picking drive assembly 1 for driving a picking spindle 2 and a doffer disk drive assembly 3 for driving a doffer disk 4 are respectively installed, the picking spindles 2 are arranged in multiple rows, and each row is provided with multiple picking spindles 2, the doffer disk 4 and the picking spindles 2 are arranged correspondingly, the multiple rows of picking spindles 2 are driven to rotate by the doffer disk drive assembly 3, and the multiple picking spindles 2 are synchronously driven to rotate, so as to realize the function of collecting cotton on the cotton head, the rotating multiple rows of picking spindles 2 pass through the doffer disk 4 in turn, and the cotton on the picking spindles 2 is stripped by the doffer disk 4 driven by the doffer disk drive assembly 3, and collected by subsequent components, the above components are all prior arts in automatic cotton pickers, and are technical solutions well known to persons skilled in the art, which are not within the protection scope of the technical solution of the present application, and their specific structures and working principles are not described in detail.

[0020] In this implementation, see Figure 2-Figure 4The detection mechanism is arranged downstream of the doffing disk 4 and corresponds to one row of spindles 2. After the spindles 2 pass through the doffing disk 4 with cotton, the spindles 2 will pass through the detection mechanism before picking the cotton. The detection mechanism detects each row of spindles 2 that pass through, and performs real-time detection on the spindles 2 in use to timely understand the wear status of the spindles 2.

[0021] It is worth mentioning that the detection mechanism includes a general inspection rod 8, a plurality of transmission rods 6 corresponding to the picking spindles 2, and a detection hair disk 5 installed at the end of the transmission rod 6 and abutting against the outer ring of the picking spindles 2. The end of the transmission rod 6 away from the detection hair disk 5 is connected to the general inspection rod 8. When each row of picking spindles 2 passes through the general inspection rod 8, the picking spindles 2 will pass through the bottom of the corresponding detection hair disk 5 and contact the bottom hair surface of the detection hair disk 5, which has a pulling effect on the detection hair disk 5. The sharp teeth on the picking spindles 2 in the moving state wear differently, and the forces acting on the detection hair disk 5 are different, and the forces are transmitted to the general inspection rod 8 through the transmission rod 6. By detecting the stress state of the general inspection rod 8, the wear state of the corresponding row of picking spindles 2 can be judged, and the wear condition can be understood and judged. Both ends of the general inspection rod 8 are provided with detection components and passed through the detection group The components are connected to the machine body, and the detection component includes an extrusion chamber 11 arranged at the end of the total inspection rod 8 and close to the side of the detection hair disk 5, and a detection chamber 12 connected to the machine body. The detection chamber 12 is connected to the end of the extrusion chamber 11, and both ends of the inner cavity of the extrusion chamber 11 are slidably connected to the limit plates 15. The inner cavity of the extrusion chamber 11 is filled with a pressurized liquid located between the two limit plates 15, and the pressurized liquid is locked between the two limit plates 15, so that the pressurized liquid is not easy to enter the detection chamber 12, reducing the impact on the detection result of the main air pressure sensor 16, and the pressurized liquid is preferably a thick liquid with a larger density, which reduces the situation where it enters the detection chamber 12 through the gap between the limit plate 15 and the inner wall of the extrusion chamber 11. The main air pressure sensor 16 is installed in the detection chamber 12. When the total inspection rod 8 is subjected to force, such as Figure 4 As shown, the total inspection rod 8 will generate an extrusion force on the extrusion chamber 11. After the extrusion chamber 11 is squeezed, it will generate pressure on the pressurized liquid inside the extrusion chamber 11. After the pressurized liquid is pressurized, it will push the limit plates 15 at both ends to move toward the inner cavity of the detection chamber 12, which will compress the gas in the inner cavity of the detection chamber 12. The main air pressure sensor 16 can detect the air pressure status in the detection chamber 12 in real time.

[0022] In addition, the cotton picking intelligent detector 9 is arranged on one side of the machine body, and the cotton picking intelligent detector 9 is provided with a damage detection module, a damage analysis module and an early warning module. The input end of the damage detection module is connected to the main air pressure sensor 16 signal, the output end of the damage detection module is connected to the damage analysis module signal, and the output end of the damage analysis module is connected to the early warning module signal. When the cotton picking head is picking cotton, each row of picking spindles 2 passes through the cotton stripping disk 4 in turn after picking cotton and moves toward the detection mechanism. The corresponding row of picking spindles 2 contacts the bottom of the corresponding detection hair disk 5 on the general inspection rod 8. When the sharp teeth on the picking spindle 2 are less worn, the moving picking spindle 2 will exert a greater force on the detection hair disk 5; when the sharp teeth on the picking spindle 2 are more worn, the moving picking spindle 2 will exert a greater force on the detection hair disk 5; It will produce a smaller force on the detection hair plate 5. The damage analysis module is preset with the force data of the picking spindle 2 on the detection hair plate 5 under different wear conditions, which is convenient for timely judgment of the wear state of the picking spindle 2; when the picking spindle 2 passes through the detection hair plate 5, the force of the picking spindle 2 in the corresponding row on the corresponding detection hair plate 5 is transmitted to the general inspection rod 8 through the conduction rod 6. After the general inspection rod 8 is subjected to force, the extrusion chamber 11 is squeezed, and the main air pressure sensor 16 detects the pressure data in the detection chamber 12 and sends it to the damage detection module. The damage detection module calculates the force state of the corresponding general inspection rod 8, and sends the calculation result to the damage analysis module. The damage analysis module determines the overall wear condition of the corresponding row of picking spindles 2, and through the corresponding row of picking spindles 2 The average wear degree of each picking spindle 2 is calculated by quantity, and the damage analysis module compares the average wear degree with the preset qualified wear degree; when the damage analysis module determines that the average wear degree of each row of picking spindles 2 is less than the preset qualified wear degree, the damage analysis module will send a qualified detection reminder signal to the reminder module, and the reminder module will send a corresponding sound and light reminder to remind the driver of the wear status of the picking spindles 2 on the cotton picking head; when the damage analysis module determines that the average wear degree of one or more rows of picking spindles 2 is equal to the preset qualified wear degree, the damage analysis module will send an inspection warning signal to the reminder module to remind the driver that one or more rows of picking spindles 2 on the cotton picking head are in a state of imminent damage, so that the driver can understand the working status of the cotton picking head and Before the long cotton picking work, it is repaired or replaced in advance; when the damage analysis module determines that the average wear degree of one row or more than one row of picking spindles 2 is greater than the preset qualified wear degree, the damage analysis module will send a qualified detection reminder signal to the reminder module, and the reminder module will send a corresponding sound and light reminder to remind the driver that some of the picking spindles 2 in one row or more than one row of picking spindles 2 on the cotton picking head are in a state of excessive wear, which is convenient for the driver to judge the time to stop for inspection and replacement according to the current picking area, and can detect the wear state of the picking spindles 2 on the cotton picking head in real time, which is convenient for the driver or maintenance personnel to understand the equipment status in time, reduce the continuous operation of the damaged picking spindles 2, and improve the picking effect and picking rate of the cotton picking head.

[0023] In this implementation, see Figure 4Each limit plate 15 is provided with a limit block fixed to the inner wall of the extrusion chamber 11 on one side close to the pressurized liquid. The two limit plates 15 are connected in series through an elastic rope passing through the pressurized liquid. The two limit plates 15 are pulled by the elastic rope to limit the limit plates 15 and lock the pressurized liquid between the two limit plates 15, so that it is not easy to leak into the detection chamber 12, thereby improving the accuracy of the detection result of the main air pressure sensor 16 in the detection chamber 12. The end of the total inspection rod 8 is provided with an abutment sleeve abutting against the extrusion chamber 11. 13, the outer ring of the abutment sleeve 13 is an arc-shaped structure, and the abutment surface between the extrusion chamber 11 and the abutment sleeve 13 is an elastic abutment surface 14. After the total inspection rod 8 is subjected to force, it will drive the abutment sleeve 13 to move and exert a certain extrusion effect on the extrusion chamber 11. By setting the abutment surface between the extrusion chamber 11 and the abutment sleeve 13 to an elastic structure, the abutment sleeve 13 can better squeeze the pressurized liquid in the inner cavity of the extrusion chamber 11, so that it can more sensitively push the limit plates 15 at both ends to move, and compress the inner cavity gas of the detection chamber 12.

[0024] In addition, the inner cavity of each detection chamber 12 is slidably connected with a balancing piston plate 17, and the main air pressure sensor 16 is installed on the balancing piston plate 17. The main elastic member 18 is installed on the side of the balancing piston plate 17 away from the extrusion chamber 11. The ends of the two detection chambers 12 away from the extrusion chamber 11 are connected in series through a balancing pipe 19. The internal air pressure of the two detection chambers 12 is balanced by the balancing pipe 19. When the extrusion chamber 11 is squeezed and pushes the limit plates 15 at both ends to move, the air pressure in the inner cavities of the two detection chambers 12 is equal, so that the detection result of the main air pressure sensor 16 is more accurate. The main regulating port 20 is externally connected to an air pump 1, and an electromagnetic valve 1 is installed on the main regulating port 20. A sensitive adjustment module is also provided on the cotton picking intelligent detector 9. The input end of the sensitive adjustment module is connected to the main air pressure sensor 16 signal, and the output end of the sensitive adjustment module is respectively connected to the electromagnetic valve 1 and the air pump signal. By adjusting the initial value of the air pressure between the balancing piston plate 17 and the limiting plate 15, the degree of air pressure change detected by the main air pressure sensor 16 is adjusted. For example, when the initial value of the air pressure between the balancing piston plate 17 and the limiting plate 15 is low, the extrusion chamber 11 is squeezed to the pressure between the two. The air pressure change has a greater effect; when the initial value of the air pressure between the balance piston plate 17 and the limit plate 15 is high, the high-pressure gas has a pushing effect on the outer side of the limit plate 15, and the extrusion chamber 11 pushes the limit plate 15 after being subjected to the extrusion force. The stroke, thereby making the air pressure change between the balance piston plate 17 and the limit plate 15 smaller, so that the main air pressure sensor 16 detects a smaller air pressure change; the initial value of the air pressure between the corresponding balance piston plate 17 and the limit plate 15 can be adjusted according to different models of picking spindles 2, and the wear degree of different models of picking spindles 2 can be accurately judged. When it is necessary When adjusting the sensitivity to the degree of wear of the picking spindle 2, the cotton picking head is in a stopped state. The air pump is controlled to work and the solenoid valve is opened through the sensitivity adjustment module. The air pump inflates the balance pipe 19, and the high-pressure gas pushes the balance piston plate 17 to move. The balance piston plate 17 moves the space between the compression and the limit plate 15, and the air pressure between the two is detected by the main air pressure sensor 16. The main air pressure sensor 16 sends the air pressure value to the sensitivity adjustment module. The sensitivity adjustment module determines whether the air pressure value of the main air pressure sensor 16 reaches the preset value, and then controls the air pump and the solenoid valve to a state to complete the sensitivity adjustment work.

[0025] The second implementation method: Figure 6-Figure 8The cotton picking head for an automatic cotton picking machine shown is different from the first embodiment in that after the overall wear average value of the picking spindles 2 of the corresponding row is determined by the first embodiment, when the picking spindles 2 of the corresponding row are inspected and repaired, due to the large number of picking spindles 2, it is necessary to quickly and accurately determine the wear condition of each picking spindle 2, and a single inspection cylinder 7 corresponding to the conduction rod 6 is fixed on the general inspection rod 8, the end of the conduction rod 6 is plugged into the general inspection rod 8 and extends to the inner cavity of the single inspection cylinder 7, the inner cavity of the single inspection cylinder 7 is slidably connected with a detection piston plate 22 fixed to the end of the conduction rod 6, and a single air pressure sensor 23 is installed at the end of the detection piston plate 22 away from the conduction rod 6, and the input end of the damage detection module is connected to the signal of the single air pressure sensor 23. During the inspection, each picking spindle 2 is driven to rotate through the picking spindle drive assembly 1, and the rotating picking spindle 2 pulls the hair surface on the corresponding detection hair disk 5, and transmits the force to the conduction rod 6, which drives the detection piston plate 22 to move, and the single air pressure sensor 23 detects the air pressure change in the inner cavity of the single inspection cylinder 7, and sends the air pressure value to the damage detection module, and the damage detection module sends the detection result to the damage analysis module. The damage analysis module determines the wear state of the corresponding picking spindle 2, and sends the wear state to the maintenance personnel through the reminder module, so that the maintenance personnel can quickly determine the wear state of each picking spindle 2. When the cotton picking head is inspected, the wear condition of the corresponding picking spindle 2 can be judged intuitively and accurately, thereby improving the cotton picking quality and the clean cotton picking rate of the cotton picking head.

[0026] In addition, a single elastic member 25 is installed on the side of the detection piston plate 22 close to the transmission rod 6. By setting the single elastic member 25, the force acting on the transmission rod 6 will be transmitted to the single elastic member 25, and then transmitted to the total inspection rod 8 through the single elastic member 25, which does not affect the detection component's detection of the stress state of the entire total inspection rod 8. The end of the single inspection tube 7 away from the transmission rod 6 is connected to a single adjustment port 24, and a solenoid valve 2 is installed on the single adjustment port 24. The single adjustment port 24 is connected to the output end of the air pump, and the input end of the sensitive adjustment module is connected to the signal of the single air pressure sensor 23, and the output end of the sensitive adjustment module is connected to the signal of the solenoid valve 2. By filling the end of the single inspection tube 7 and the detection piston plate 22 with gases of different air pressures, By adjusting the force applied to the detection piston plate 22, and then adjusting the degree of compression of the gas in the inner cavity of the single inspection tube 7 by the conduction rod 6 when the force is applied, it is convenient to adjust the corresponding detection sensitivity according to different types of picking ingots 2. When it is necessary to adjust the sensitivity of the detection of a single picking ingot 2, the air pump is controlled to work and the solenoid valve 2 is opened through the sensitivity adjustment module. The air pump inflates toward the single adjustment port 24. The high-pressure gas pushes the detection piston plate 22 to move, and the air pressure at the end of the single inspection tube 7 is detected through the single air pressure sensor 23. The single air pressure sensor 23 sends the air pressure value to the sensitivity adjustment module. The sensitivity adjustment module determines whether the air pressure value of the single air pressure sensor 23 reaches the preset value, and then controls the state of the air pump and the solenoid valve 2 to complete the sensitivity adjustment work.

[0027] Preferably, see Figure 7 The side of the detection hair disc 5 close to the picking spindle 2 is detachably connected with a hook surface brush holder 10, and a guide ring 21 is fixed on the detection hair disc 5, and the guide ring 21 is slidably plugged with the conduction rod 6. By setting a detachable and replaceable hook surface brush holder 10, the side of the hook surface brush holder 10 close to the picking spindle 2 is a hair surface, and after the hook surface brush holder 10 itself is worn, the hook surface brush holder 10 can be quickly replaced to reduce the use cost, and the detection hair disc 5 is movably connected with the conduction rod 6 through the guide ring 21, so that the hook surface brush holder 10 can always be in close contact with the surface of the picking spindle 2, thereby improving the accuracy of detecting the wear degree of the picking spindle 2.

[0028] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. A cotton picking head for an automatic cotton picking machine, comprising a machine body, on which a spindle driving assembly (1) for driving a spindle (2) to operate and a doffer disk driving assembly (3) for driving a doffer disk (4) to operate are respectively mounted, wherein the spindles (2) are arranged in multiple rows, and each row is provided with multiple spindles (2), and the doffer disk (4) and the spindles (2) are arranged correspondingly, characterized in that: Also includes: A detection mechanism, the detection mechanism being arranged downstream of a cotton stripping plate (4) and corresponding to one row of picking spindles (2), the detection mechanism comprising a general detection rod (8), a plurality of transmission rods (6) corresponding to the picking spindles (2), and a detection hair plate (5) mounted at the end of the transmission rod (6) and abutting against the outer ring of the picking spindle (2), the end of the transmission rod (6) away from the detection hair plate (5) being connected to the general detection rod (8), and both ends of the general detection rod (8) being provided with detection components and connected to the machine body through the detection components The detection assembly comprises an extrusion chamber (11) arranged at the end of the total detection rod (8) and close to one side of the detection hair plate (5), and a detection chamber (12) connected to the body, the detection chamber (12) is connected to the end of the extrusion chamber (11), both ends of the inner cavity of the extrusion chamber (11) are slidably connected to the limit plates (15), the inner cavity of the extrusion chamber (11) is filled with a pressurized liquid located between the two limit plates (15), and a main air pressure sensor (16) is installed in the detection chamber (12); A cotton picking intelligent detector (9), the cotton picking intelligent detector (9) being arranged on one side of the machine body, the cotton picking intelligent detector (9) being provided with a damage detection module, a damage analysis module and an early warning module, the input end of the damage detection module being connected to a main air pressure sensor (16) signal, the output end of the damage detection module being connected to a damage analysis module signal, and the output end of the damage analysis module being connected to an early warning module signal.

2. The cotton picking head for an automatic cotton picking machine according to claim 1, characterized in that: A limiting block fixed to the inner wall of the extrusion chamber (11) is provided on the side of each limiting plate (15) close to the pressurized liquid, and the two limiting plates (15) are connected in series via an elastic rope passing through the pressurized liquid.

3. The cotton picking head for an automatic cotton picking machine according to claim 1, characterized in that: The end of the total inspection rod (8) is sleeved with an abutment sleeve (13) abutting against the extrusion chamber (11); the outer ring of the abutment sleeve (13) is an arc-shaped structure; and the abutment surface between the extrusion chamber (11) and the abutment sleeve (13) is an elastic abutment surface (14).

4. The cotton picking head for an automatic cotton picking machine according to claim 1, characterized in that: The inner cavity of each detection chamber (12) is slidably connected to a balancing piston plate (17), the main air pressure sensor (16) is mounted on the balancing piston plate (17), a main elastic member (18) is mounted on the side of the balancing piston plate (17) away from the extrusion chamber (11), and the ends of the two detection chambers (12) away from the extrusion chamber (11) are connected in series via a balancing pipe (19).

5. The cotton picking head for an automatic cotton picking machine according to claim 4, characterized in that: The balance pipe (19) is connected to a main regulating port (20), the main regulating port (20) is externally connected to an air pump, a solenoid valve (1) is installed on the main regulating port (20), and a sensitive adjustment module is also provided on the cotton picking intelligent detector (9), the input end of the sensitive adjustment module is connected to the main air pressure sensor (16) signal, and the output end of the sensitive adjustment module is respectively connected to the solenoid valve (1) and the air pump signal.

6. A cotton picking head for an automatic cotton picking machine according to claim 5, characterized in that: A single inspection cylinder (7) corresponding to the transmission rod (6) is fixed on the total inspection rod (8); the end of the transmission rod (6) is plugged into the total inspection rod (8) and extends to the inner cavity of the single inspection cylinder (7); the inner cavity of the single inspection cylinder (7) is slidably connected with a detection piston plate (22) fixed to the end of the transmission rod (6); a single air pressure sensor (23) is installed at one end of the detection piston plate (22) away from the transmission rod (6); and the input end of the damage detection module is signal-connected to the single air pressure sensor (23).

7. A cotton picking head for an automatic cotton picking machine according to claim 6, characterized in that: A single elastic member (25) is installed on the side of the detection piston plate (22) close to the transmission rod (6), and a single adjustment port (24) is connected to the end of the single detection cylinder (7) away from the transmission rod (6). A second solenoid valve is installed on the single adjustment port (24). The single adjustment port (24) is connected to the output end of the air pump, the input end of the sensitive adjustment module is connected to the signal of the single air pressure sensor (23), and the output end of the sensitive adjustment module is connected to the signal of the second solenoid valve.

8. The cotton picking head for an automatic cotton picking machine according to claim 1, characterized in that: A hook surface brush seat (10) is detachably connected to a side of the detection hair disc (5) close to the picking spindle (2), and a guide ring (21) is fixed on the detection hair disc (5), and the guide ring (21) is slidably plugged with the conduction rod (6).

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