Efficient lubricating and sealing system of cotton picker spindle

Abstract

The invention relates to the technical field of cotton pickers, and discloses an efficient lubricating and sealing system for a cotton picker spindle, which comprises an automatic conveying system, a spindle sleeve and a spindle body sleeved in the spindle sleeve, and a first oil-retaining bearing and a second oil-retaining bearing are respectively mounted in a sleeving gap between the spindle sleeve and the spindle body. And the first oil-retaining bearing and the second oil-retaining bearing form an annular oil feeding space in the spindle sleeve. According to the efficient lubricating and sealing system for the cotton picker picking spindle, the automatic sealing component, the picking spindle composed of the picking spindle sleeve, the picking spindle body, the first oil-retaining bearing and the second oil-retaining bearing and the automatic conveying system form the efficient lubricating and sealing system; the automatic sealing component automatically isolates the oil filling flow channel from the automatic conveying system, and the phenomenon that redundant lubricating oil in a pipeline structure in the automatic conveying system automatically enters the oil filling flow channel to cause excessive oil filling is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of cotton pickers, and particularly to an efficient lubrication and sealing system for the spindles of a cotton picker. Background Art

[0002] As the core component for cotton picking, the spindles of a cotton picker rotate at a high speed, bear a large load, and are long-term exposed to an environment mixed with cotton fluffs and dust. Currently, the spindles of mainstream cotton pickers generally adopt an open or simple-sealed structure design, and the lubrication method is mostly manual grease injection or drip oil lubrication. With the increasing requirement for the operation efficiency of cotton pickers, the spindle speed has increased from the early 200 rpm to more than 500 rpm nowadays. The traditional lubrication method has been difficult to meet the heat dissipation requirements of high-speed bearings.

[0003] In recent years, with the further development of related technologies, researchers in related fields have developed and disclosed a centralized automatic oil supply system, which automatically supplies oil and lubricates the spindles through a corresponding pipeline structure by a pump delivery device. However, it is found in actual use that although automatic oil supply reduces the labor intensity, the phenomenon of oil leakage and pollution of cotton often occurs. After in-depth research by the applicant, it is found that there are multiple reasons. For example, the lubricating oil reserved in the pipeline structure moves to the spindles by itself due to the vibration of the equipment during operation, resulting in over-oiling. Secondly, for leakage prevention, the spindles in the existing technology mostly adopt a sealing and plugging method. Although it is useful in the early stage, as the use time increases, the sealing structure will fail due to fatigue wear and cannot effectively prevent leakage for a long time. Summary of the Invention

[0004] Technical Problems to be Solved Aiming at the deficiencies of the prior art, the present invention provides an efficient lubrication and sealing system for the spindles of a cotton picker, which solves the problems raised in the above background art.

[0005] Technical Solutions To achieve the above object, the present invention provides the following technical solutions: An efficient lubrication and sealing system for the spindles of a cotton picker, including an automatic conveying system, a spindle sleeve, and a spindle body sleeved inside the spindle sleeve. First oil-impregnated bearings and second oil-impregnated bearings are respectively installed in the sleeved gap between the spindle sleeve and the spindle body. The first oil-impregnated bearing and the second oil-impregnated bearing form an annular oil supply space inside the spindle sleeve. An oil filling flow channel communicating with the annular oil supply space is opened in the spindle body, and an automatic sealing component is arranged between one end of the oil filling flow channel and the output structure of the automatic conveying system. The automatic sealing component includes an inner conical cylinder, a conical movable plug, and a spring. The inner conical cylinder serves as a transition structure to spatially connect the output structure of the automatic conveying system to the fueling flow channel. The conical movable plug is movably sleeved inside the inner conical cylinder. The spring is installed between the bottom of the conical movable plug and the inner wall of the bottom of the inner conical cylinder, and the conical movable plug can be driven by the spring to close the internal space of the inner conical cylinder in the non-compressed state of the spring.

[0006] Preferably, the automatic conveying system includes a delivery pump, a lubricating oil tank, a shunt pipe, and a branch solenoid valve pipe. The output end and the input of the delivery pump are respectively sleeved inside the lubricating oil tank and connected to communicate with the shunt pipe. The number of the branch solenoid valve pipes is not less than two and they are arranged equidistantly along the surface of the shunt pipe. An electronic flow meter is installed at one end of the branch solenoid valve pipe, and the other end of the branch solenoid valve pipe, as the output structure of the automatic conveying system, is sleeved inside the top of the inner conical cylinder.

[0007] Preferably, a bearing and an auxiliary sealing ring are nested and installed at the sleeve joint between the other end of the branch solenoid valve pipe and the inner side of the top of the inner conical cylinder. The branch solenoid valve pipe can rotate to make way for the spindle body under the support of the bearing. A conical meshing gear is installed at the top of the spindle body.

[0008] Preferably, the number of the springs is not less than two, and a guide rod is movably sleeved inside the spring. One end of the guide rod is fixed on the inner wall of the bottom of the inner conical cylinder, and the other end of the guide rod is clamped with a limit sleeve plate fixed on the bottom of the conical movable plug.

[0009] Preferably, a leakage prevention mechanism for sleeving the spindle body is arranged at the bottom of the spindle sleeve. The leakage prevention mechanism includes a middle annular cylinder, an oil-absorbing cotton component, and a movable cover plate. An oil collecting groove is formed in the inner ring structure of the middle annular cylinder. The oil-absorbing cotton component is annularly arranged inside the middle annular cylinder and surrounds the surface of the spindle body, and the two ends of the oil-absorbing cotton component are mutually attached and connected. A step groove for making way for the two ends of the oil-absorbing cotton component is formed on the side wall of the middle annular cylinder. A threaded hole is formed in the inner wall of the middle of the step groove. The movable cover plate can be clamped in the step groove to cover and seal the step groove. A counterbore aligned with the threaded hole is formed in the movable cover plate, and a first limit screw that can be threadedly connected with the threaded hole is sleeved in the counterbore.

[0010] Preferably, the oil-absorbing cotton component is composed of a rubber strip and an oil-absorbing cotton strip. The oil-absorbing cotton strip is glued on the surface of the rubber strip. The oil-absorbing cotton strip presents an annular structure that surrounds and covers the outside of the oil collecting groove inside the middle annular cylinder.

[0011] Preferably, a temporary storage ring groove is provided on the inner wall of the bottom of the middle annular cylinder, and the temporary storage ring groove is located below the oil-absorbing cotton strip; The bottom structure of the spindle picking sleeve is provided with a clearance hole, and the top structure of the middle ring-shaped cylinder is provided with an assembly screw hole aligned with the clearance hole. The bottom of the spindle picking sleeve and the top structure of the middle ring-shaped cylinder can be detachably installed by means of screws fitted into the clearance hole and then threadedly connected with the assembly screw hole.

[0012] Preferably, a centrifugal guide assembly is provided on the outer side of the bottom of the picking spindle body and is sleeved inside the middle annular cylinder. The centrifugal guide assembly includes a semi-open sleeve, the outer ring structure of the semi-open sleeve is an arc surface, and a plurality of through holes aligned with the oil-absorbing cotton component are opened in the outer ring structure of the semi-open sleeve.

[0013] Preferably, a leak-proof sealing ring is installed on the top of the semi-open sleeve to fill and seal the connecting gap between the semi-open sleeve and the bottom of the picking sleeve, and the inner ring structure at the bottom of the semi-open sleeve is fixedly sleeved on the bottom surface of the picking body.

[0014] Preferably, a conical dustproof sealing ring is mounted on the inner side of the bottom of the middle annular cylinder and is clamped with the bottom structure of the picking spindle body to improve the dustproof sealing effect. A combined sealing ring is installed between the top of the picking spindle sleeve and the top of the picking spindle body to improve the sealing effect.

[0015] Beneficial Effects The present invention provides a high-efficiency lubrication and sealing system for a cotton picker spindle, which has the following beneficial effects: 1. The efficient lubrication and sealing system of the picking spindles of the cotton picker is composed of an automatic sealing component and a picking spindle sleeve, a picking spindle body, a first oil-containing bearing and a second oil-containing bearing, and an automatic conveying system. In the subsequent use process, based on the basic effect of the automatic conveying system automatically and quantitatively conveying lubricating oil, after the oil delivery is completed, the automatic sealing component automatically isolates the refueling channel from the automatic conveying system to avoid the phenomenon of excessive refueling caused by the excess lubricating oil in the internal pipeline structure of the automatic conveying system automatically entering the refueling channel, thereby preliminarily solving the problems existing in the prior art.

[0016] 2. The efficient lubrication and sealing system of the picking spindle of the cotton picker is further combined with the above-mentioned efficient lubrication and sealing system through the anti-leakage mechanism. The oil-absorbing cotton component inside the anti-leakage mechanism blocks, contacts and collects the residual lubricating oil that may penetrate to the bottom of the picking spindle body and move in a circular motion in a rotating state, thereby achieving a double anti-leakage sealing effect of one sealing and one collecting.

[0017] 3. For the high-efficiency lubrication and sealing system of the cotton picker spindle, the leak-proof mechanism installed inside it can directly remove the screws at the bottom of the middle annular cylinder and the spindle sleeve when the oil-absorbing cotton component used inside shows a disassembly fracture phenomenon to ensure the maintenance efficiency. Subsequently, the entire leak-proof mechanism can be replaced modularly to maintain the high-efficiency replacement and maintenance effect, ensure the service efficiency of the high-efficiency lubrication and sealing system, and then reinstall the new leak-proof mechanism at the bottom of the spindle sleeve and sleeve it with the spindle body.

[0018] 4. The high-efficiency lubrication and sealing system of the cotton picker spindle further combines with the above-mentioned high-efficiency lubrication and sealing system through the centrifugal delivery component composed of a semi-open sleeve, a through-hole, and a leak-proof sealing ring. The semi-open sleeve centrally collects and temporarily stores the residual lubricating oil seeping out from the bottom surface of the spindle body, increasing the retention time of the residual lubricating oil in the overall device. Subsequently, during the synchronous rotation of the semi-open sleeve with the spindle body, the collected residual lubricating oil is thrown into the interior of the oil-absorbing cotton component through the through-hole, thereby improving the storage efficiency of the oil-absorbing cotton component for the residual lubricating oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a cross-sectional view of the spindle sleeve of the structure of the present invention; Figure 2 It is a left view of the spindle sleeve of the structure of the present invention; Figure 3 It is a front view of the structure of the present invention; Figure 4 It is a top view of the lubricating oil tank of the structure of the present invention; Figure 5 It is an enlarged view of the spindle body of the structure of the present invention; Figure 6 For the structure of the present invention Figure 1 It is an enlarged view of part A in the structure of the present invention; Figure 7 It is a top view of the leak-proof mechanism of the structure of the present invention; Figure 8 It is an enlarged view of the oil-absorbing cotton component of the structure of the present invention; Figure 9 For the structure of the present invention Figure 1 It is an enlarged view of part B in the structure of the present invention.

[0020] In the figure: 1. spindle sleeve; 2. spindle body; 3. first oil-impregnated bearing; 4. second oil-impregnated bearing; 5. annular oil supply space; 6. oil filling flow channel; 7. delivery pump; 8. lubricating oil tank; 9. shunt pipe; 10. branch solenoid valve pipe; 11. automatic sealing component; 111. inner conical cylinder; 112. conical movable plug; 113. spring; 114. guide rod; 12. anti-leakage mechanism; 121. middle annular cylinder; 122. oil absorption cotton component; 123. movable cover plate; 124. oil collection groove; 125. temporary storage ring groove; 13. combined sealing ring; 14. conical dust-proof sealing ring; 15. semi-open sleeve; 16. through hole; 17. anti-leakage sealing ring. Detailed implementation mode

[0021] Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] Please refer to Figures 1-6 , a high-efficiency lubrication and sealing system for a cotton picker spindle, including an automatic conveying system, a spindle sleeve 1, and a spindle body 2 sleeved inside the spindle sleeve 1. A first oil-impregnated bearing 3 and a second oil-impregnated bearing 4 are respectively installed in the sleeved gap between the spindle sleeve 1 and the spindle body 2. The first oil-impregnated bearing 3 and the second oil-impregnated bearing 4 form an annular oil supply space 5 inside the spindle sleeve 1. An oil filling flow channel 6 communicating with the annular oil supply space 5 is opened in the spindle body 2. The oil filling flow channel 6 can provide a transition channel required for oil filling, and then meet the use requirements of synchronously lubricating the first oil-impregnated bearing 3 and the second oil-impregnated bearing 4, creating favorable conditions for the high-efficiency lubrication effect of the subsequent overall device. An automatic sealing component 11 is arranged between one end of the oil filling flow channel 6 and the output structure of the automatic conveying system; The automatic sealing component 11 includes an inner conical cylinder 111, a conical movable plug 112, and a spring 113. The inner conical cylinder 111 serves as a transition structure to spatially connect the output structure of the automatic conveying system to the fuel injection channel 6, ensuring the smoothness and overall connectivity of the oil delivery channel. The conical movable plug 112 is movably sleeved inside the inner conical cylinder 111. The spring 113 is installed between the bottom of the conical movable plug 112 and the inner wall of the bottom of the inner conical cylinder 111. And the conical movable plug 112 can be pushed and driven by the spring 113 to close the internal space of the inner conical cylinder 111 in the non-compressed state of the spring 113. Thus, during the non-pumping fuel injection process, the internal space of the inner conical cylinder 111 can be automatically closed by the conical movable plug 112. The number of springs 113 is not less than two, so as to ensure that sufficient external force is required to achieve the displacement of the conical movable plug 112, thereby improving the overall compressive performance of the automatic sealing component 11. And a guide rod 114 is movably sleeved inside the spring 113. One end of the guide rod 114 is fixed on the inner wall of the bottom of the inner conical cylinder 111, and a limit sleeve plate fixed on the bottom of the conical movable plug 112 is clamped at the other end of the guide rod 114. By using the reciprocating clamping and sleeving of the guide rod 114 and the limit sleeve plate, support and guidance can be provided for the reciprocating movement of the conical movable plug 112 inside the inner conical cylinder 111, thereby ensuring the stable movement of the conical movable plug 112 inside the inner conical cylinder 111 for a long time and ensuring the sealing effect of the conical movable plug 112 on the internal space of the inner conical cylinder 111; The automatic conveying system includes a conveying pump 7, a lubricating oil tank 8, a shunt pipe 9, and a branch solenoid valve pipe 10. The output end and the input of the conveying pump 7 are respectively sleeved inside the lubricating oil tank 8 and are connected to communicate with the shunt pipe 9, thereby meeting the requirements of automatic pumping use and realizing automatic pumping fuel injection, and further creating favorable conditions for an efficient lubrication use effect; The number of branch solenoid valve pipes 10 is not less than two and is arranged equidistantly along the surface of the shunt pipe 9. Thus, it can meet the use requirements of synchronous fuel injection lubrication for multiple spindle units 2, and further adapt to the use requirements of different environments and large equipment. And an electronic flowmeter is installed at one end of the branch solenoid valve pipe 10 to accurately control the fuel injection volume in one lubrication cycle, avoid excessive lubricating oil remaining in the pipeline structure, and thus create favorable conditions for avoiding excessive subsequent lubricating oil penetration. The other end of the branch solenoid valve pipe 10, as the output structure of the automatic conveying system, is sleeved inside the top inner side of the inner conical cylinder 111; At the nested installation of the other end of the branch solenoid valve pipe 10 and the inner side of the top of the inner conical cylinder 111, a bearing and an auxiliary sealing ring are nested, thereby improving the connection strength between the other end of the branch solenoid valve pipe 10 and the inner side of the top of the inner conical cylinder 111 while enhancing the connection tightness between the other end of the branch solenoid valve pipe 10 and the inner side of the top of the inner conical cylinder 111. Moreover, the branch solenoid valve pipe 10 can rotate and give way to the picker body 2 under the support of the bearing, avoiding structural interference during operation. A conical meshing gear is installed at the top of the picker body 2, facilitating subsequent force-bearing rotation operations and ensuring the stability of the rotation of the picker body 2 itself.

[0023] During use, to meet the lubrication requirements of the first oil-impregnated bearing 3 and the second oil-impregnated bearing 4 for synchronous operation between the picker sleeve 1 and the picker body 2, the delivery pump 7 is activated. The delivery pump 7 pumps the lubricating oil pre-stored in the lubricating oil tank 8 into the inside of the shunt pipe 9, and then it is shunted into the branch solenoid valve pipe 10, and finally enters the inside of the automatic sealing component 11 through the branch solenoid valve pipe 10. After being impacted by the flowing lubricating oil, the conical movable plug 112 will move and give way under the elastic traction of multiple springs 113. The clamping connection between the guide rod 114 and the corresponding limit sleeve plate can guide and assist in supporting the movement of the conical movable plug 112 until a structural gap between the conical movable plug 112 and the inner conical cylinder 111 is given way. The lubricating oil enters the fueling flow channel 6 through the structural gap between the conical movable plug 112 and the inner conical cylinder 111, and finally enters the annular oil delivery space 5 through the fueling flow channel 6 and simultaneously contacts the picker body 2 and the first oil-impregnated bearing 3, providing lubrication conditions for the picker body 2 and the first oil-impregnated bearing 3. During the pumping process of the delivery pump 7, the electronic flowmeter is synchronously turned on for measurement. When the maximum amount set for a lubrication cycle is reached, the delivery pump 7 is turned off. At the same time, after the redundant lubricating oil in the pipeline structures such as the shunt pipe 9 and the branch solenoid valve pipe 10 has no flow power, the conical movable plug 112 will be reset under the reset pressure of the spring 113 and the clamping guidance of the guide rod 114, thereby re-closing the internal space of the inner conical cylinder 111, thus avoiding the problem of over-fueling caused by the automatic entry of redundant lubricating oil in the pipeline structures such as the shunt pipe 9 and the branch solenoid valve pipe 10 into the fueling flow channel 6.

[0024] Please refer to Figures 7-9, a leakage prevention mechanism 12 sleeved with the picker spindle body 2 is provided at the bottom of the picker spindle sleeve 1. The leakage prevention mechanism 12 includes a middle annular cylinder 121, an oil-absorbing cotton component 122, and a movable cover plate 123. An oil collection groove 124 is formed in the inner ring structure of the middle annular cylinder 121. The oil-absorbing cotton component 122 is in an annular structure surrounding the surface of the picker spindle body 2 inside the middle annular cylinder 121, and the two ends of the oil-absorbing cotton component 122 are mutually attached and connected. The oil-absorbing cotton component 122 is composed of a rubber strip and an oil-absorbing cotton strip, and the oil-absorbing cotton strip is glued to the surface of the rubber strip. Thus, in addition to ensuring the use effect that the overall oil-absorbing cotton component 122 can be deformed but has a certain structural strength, it creates favorable conditions for the recycling of the rubber strip and the oil-absorbing cotton strip after subsequent use. The oil-absorbing cotton strip presents an annular structure surrounding and covering the outside of the oil collection groove 124 inside the middle annular cylinder 121. Thus, it can fully bear the lubricating oil residue centrifugally splashed by the picker spindle body 2 and achieve a good use effect of receiving and preventing leakage; A conical dust-proof sealing ring 14 sleeved with the bottom structure of the picker spindle body 2 is installed on the inner side of the bottom of the middle annular cylinder 121 to improve the dust-proof sealing effect, prevent external dust from entering the interior of the overall device through the inner side of the bottom of the middle annular cylinder 121, and ensure the service life of the middle annular cylinder 121 and related structures. A combined sealing ring 13 is installed between the top of the picker spindle sleeve 1 and the top of the picker spindle body 2 to improve the sealing effect; A step groove for making space for the two ends of the oil-absorbing cotton component 122 is formed in the side wall of the middle annular cylinder 121. A threaded hole is formed in the inner wall of the middle part of the step groove. The movable cover plate 123 can be clamped in the step groove and cover and seal the step groove. A counterbore aligned with the threaded hole is formed in the movable cover plate 123, and a first limit screw capable of being threadedly connected with the threaded hole is sleeved in the counterbore.

[0025] During use, quantitatively conveying lubricating oil is the preliminary treatment for eliminating the poor lubricating oil sealing between the picker spindle sleeve 1 and the picker spindle body 2. During the further use process, the oil-absorbing cotton component 122 is used to block and contact and receive the lubricating oil residue that may penetrate to the bottom of the picker spindle body 2 and make a circular motion in the rotating state due to its oil-absorbing structural characteristics. Thus, a double leakage prevention and sealing treatment effect of one sealing and one receiving is achieved; When the oil-absorbing cotton component 122 needs to be replaced after being used for a certain period of time, remove the first limiting screw between the movable cover plate 123 and the step groove. After completion, take out the movable cover plate 123 to make room for the space at both ends of the oil-absorbing cotton component 122. Then, pinch any end of the oil-absorbing cotton component 122 and perform the extraction operation to extract the used oil-absorbing cotton component 122 from the middle annular cylinder 121. The step groove provides the conditions for making room. After completion, insert one end of the new oil-absorbing cotton component 122 from the step groove into the middle annular cylinder 121 and re-wrap it around the outside of the bottom of the picking spindle body 2 under the guidance of the annular hollow structure of the middle annular cylinder 121 itself. Then, reset and install the movable cover plate 123 and the first limiting screw.

[0026] See also Figures 7-9 The inner wall of the bottom of the middle annular cylinder 121 is provided with a temporary storage ring groove 125, and the temporary storage ring groove 125 is located below the oil-absorbing cotton strip. The bottom structure of the picking sleeve 1 is provided with a clearance hole, and the top structure of the middle annular cylinder 121 is provided with an assembly screw hole aligned with the clearance hole. The bottom of the picking sleeve 1 and the top structure of the middle annular cylinder 121 can be detachably installed by means of screws and the clearance holes and then threadedly connected with the assembly screw holes, thereby providing favorable conditions for the overall modular replacement and maintenance of the leakage-proof mechanism 12, and providing users with temporary contingency operating conditions in different maintenance situations, further optimizing the use effect and scope of the overall system.

[0027] During use, if the oil-absorbing cotton component 122 is disassembled and broken after use, in order to ensure maintenance efficiency, the screws between the middle annular cylinder 121 and the bottom of the picking sleeve 1 can be directly removed, and then the entire leak-proof mechanism 12 can be modularly replaced. Subsequently, the new leak-proof mechanism 12 can be reinstalled at the bottom of the picking sleeve 1 and assembled with the picking body 2.

[0028] See also Figure 9 The outer side of the bottom of the picking spindle body 2 is provided with a centrifugal guide assembly sleeved inside the middle annular cylinder 121, and the centrifugal guide assembly includes a semi-open sleeve 15, the outer ring structure of the semi-open sleeve 15 is an arc surface, and the outer ring structure of the semi-open sleeve 15 is provided with a plurality of through holes 16 aligned with the oil-absorbing cotton component 122, thereby providing a plurality of centrifugal conveying channels; A leak-proof sealing ring 17 is installed on the top of the semi-open sleeve 15 to fill and seal the connection gap between the semi-open sleeve 15 and the bottom of the picking sleeve 1. While ensuring the connection sealing effect between the relevant structures, the leak-proof sealing ring 17 can cooperate with the semi-open sleeve 15 to form a semi-open annular structure with a certain storage space, further optimizing the collection and temporary storage effect of residual lubricating oil. The inner ring structure at the bottom of the semi-open sleeve 15 is fixedly sleeved on the bottom surface of the picking body 2.

[0029] In use, considering that when there is a large amount of penetration and the residual lubricating oil flows relatively fast and is difficult to be completely absorbed by the oil-absorbing cotton component 122, the semi-open sleeve 15 is provided to centrally collect and temporarily store the residual lubricating oil oozing from the bottom surface of the spindle body 2, increasing the retention time of the residual lubricating oil in the overall device. Subsequently, during the synchronous rotation of the semi-open sleeve 15 with the spindle body 2, the collected residual lubricating oil is thrown into the interior of the oil-absorbing cotton component 122 through the through hole 16, thereby improving the storage efficiency of the oil-absorbing cotton component 122 for the residual lubricating oil.

[0030] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0031] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An efficient lubrication and sealing system for the picking spindles of a cotton picker, comprising an automatic conveying system, a picking spindle sleeve (1), and a picking spindle body (2) sleeved inside the picking spindle sleeve (1), characterized in that: A first oil-impregnated bearing (3) and a second oil-impregnated bearing (4) are respectively installed in the sleeving gap between the spindle sleeve (1) and the spindle body (2). An annular oil supply space (5) is formed inside the spindle sleeve (1) between the first oil-impregnated bearing (3) and the second oil-impregnated bearing (4). An oil filling flow channel (6) communicating with the annular oil supply space (5) is provided in the spindle body (2). An automatic sealing component (11) is arranged between one end of the oil filling flow channel (6) and the output structure of the automatic conveying system; The automatic sealing component (11) includes an inner conical cylinder (111), a conical movable plug (112) and a spring (113). The inner conical cylinder (111) serves as a transition structure to spatially connect the output structure of the automatic conveying system and the oil filling flow channel (6). The conical movable plug (112) is movably sleeved inside the inner conical cylinder (111). The spring (113) is installed between the bottom of the conical movable plug (112) and the inner wall of the bottom of the inner conical cylinder (111). And the conical movable plug (112) can be pushed and driven by the spring (113) to seal the inner space of the inner conical cylinder (111) in the non-compressed state of the spring (113).

2. The high-efficiency lubrication and sealing system for the picking spindles of a cotton picker according to claim 1, wherein: The automatic conveying system includes a conveying pump (7), a lubricating oil tank (8), a shunt pipe (9) and a branch solenoid valve pipe (10). The output end and the input of the conveying pump (7) are respectively sleeved inside the lubricating oil tank (8) and are connected to communicate with the shunt pipe (9); The number of the branch solenoid valve pipes (10) is not less than two and they are arranged at equal intervals along the surface of the shunt pipe (9). An electronic flowmeter is installed at one end of the branch solenoid valve pipe (10). The other end of the branch solenoid valve pipe (10) serves as the output structure of the automatic conveying system and is sleeved inside the top of the inner conical cylinder (111).

3. The high-efficiency lubrication and sealing system for the cotton picker spindle according to claim 2, characterized in that: A bearing and an auxiliary sealing ring are nested and installed at the sleeving position between the other end of the branch solenoid valve pipe (10) and the inner side of the top of the inner conical cylinder (111). And the branch solenoid valve pipe (10) can rotate and make way for the spindle body (2) under the support of the bearing. A conical meshing gear is installed at the top of the spindle body (2).

4. An efficient lubrication and sealing system for a cotton picker spindle according to claim 1, characterized in that: The number of the springs (113) is not less than two. A guide rod (114) is movably sleeved inside the spring (113). One end of the guide rod (114) is fixed on the inner wall of the bottom of the inner conical cylinder (111). And a limiting sleeve plate fixed on the bottom of the conical movable plug (112) is clamped at the other end of the guide rod (114).

5. The high-efficiency lubrication and sealing system for the picking spindles of a cotton picker according to claim 1, characterized in that: A leakage prevention mechanism (12) sleeved with the spindle body (2) is arranged at the bottom of the spindle sleeve (1). The leakage prevention mechanism (12) includes a middle annular cylinder (121), an oil absorption cotton component (122) and a movable cover plate (123). An oil collecting groove (124) is arranged in the inner ring structure of the middle annular cylinder (121). The oil absorption cotton component (122) is in an annular structure inside the middle annular cylinder (121) and surrounds the surface of the spindle body (2). And the two ends of the oil absorption cotton component (122) are mutually attached and connected; A step groove capable of making way for the ends of the oil-absorbing cotton component (122) is provided on the side wall of the middle annular cylinder (121), a threaded hole is provided on the middle inner wall of the step groove, the movable cover plate (123) can be snapped into the step groove and cover and seal the step groove, and a countersunk hole aligned with the threaded hole is provided in the movable cover plate (123), and a first limit screw capable of being threadedly connected to the threaded hole is installed in the countersunk hole.

6. The high-efficiency lubrication and sealing system for the picking spindles of a cotton picker according to claim 5, characterized in that: The oil-absorbing cotton component (122) is composed of a rubber strip and an oil-absorbing cotton strip. The oil-absorbing cotton strip is glued to the surface of the rubber strip. The oil-absorbing cotton strip is in the middle annular cylinder (121) and presents an annular structure surrounding and covering the outside of the oil collecting groove (124).

7. An efficient lubrication and sealing system for a cotton picker spindle according to claim 5, characterized in that: The inner wall of the bottom of the middle annular cylinder (121) is provided with a temporary storage ring groove (125), and the temporary storage ring groove (125) is located below the oil-absorbing cotton strip; The bottom structure of the picking sleeve (1) is provided with a clearance hole, and the top structure of the middle annular tube (121) is provided with an assembly screw hole aligned with the clearance hole. The bottom of the picking sleeve (1) and the top structure of the middle annular tube (121) can be assembled with screws through the clearance hole, and then detachably installed in a threaded connection with the assembly screw hole.

8. The high-efficiency lubrication and sealing system for the picker spindle of a cotton picker according to claim 5, characterized in that: A centrifugal guide assembly is arranged on the outer side of the bottom of the picking spindle body (2) and is sleeved inside the middle annular cylinder (121). The centrifugal guide assembly comprises a semi-open sleeve (15). The outer ring structure of the semi-open sleeve (15) is an arc surface, and a plurality of through holes (16) aligned with the oil-absorbing cotton component (122) are arranged in the outer ring structure of the semi-open sleeve (15).

9. The high-efficiency lubrication and sealing system for the picking spindles of a cotton picker according to claim 8, characterized in that: A leakproof sealing ring (17) is installed on the top of the semi-open sleeve (15), and the leakproof sealing ring (17) fills and seals the connection gap between the semi-open sleeve (15) and the bottom of the picking spindle sleeve (1). The inner ring structure at the bottom of the semi-open sleeve (15) is fixedly sleeved on the bottom surface of the picking spindle body (2).

10. The high-efficiency lubrication and sealing system for the picker spindle of a cotton picker according to claim 5, characterized in that: A conical dustproof sealing ring (14) is sleeved on the inner side of the bottom of the middle annular cylinder (121) and is engaged with the bottom structure of the picking spindle body (2). A combined sealing ring (13) is installed between the top of the picking spindle sleeve (1) and the top of the picking spindle body (2).

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