Picking header lubricating system and method thereof

Abstract

A lubrication system for lubricating a plurality of picking units connected to an agricultural machine is provided. Each of the plurality of picking units includes a cam track assembly, an idle gear assembly, a drum and drive gear assembly, and a drum assembly. The lubrication system includes a lubricant supply and a pump fluidly coupled to the supply. A primary distributor is fluidly coupled to the pump and includes a plurality of outlets fluidly coupled to each of the plurality of picking units. A plurality of secondary distributors are each fluidly coupled to one of the plurality of outlets of the primary distributor. Each of the plurality of secondary dispensers is fluidly coupled to one of the plurality of picking units. The primary dispenser is configured to dispense an equal amount of lubricant to each of the plurality of secondary dispensers in a given cycle.

Description

[0001] Related Applications

[0002] This application claims the benefit of U.S. Provisional Patent Application Serial No. 63 / 513,601, filed on July 14, 2023, the disclosure of which is incorporated herein by reference in its entirety. Technical Field

[0003] The present disclosure relates to an agricultural machine including a harvesting header assembly, and in particular, to a lubrication system for delivering lubricant to the harvesting header assembly. Background Art

[0004] Cotton harvesters are agricultural machines designed for harvesting cotton plants in a field. A cotton harvester may include one or more headers or units for performing harvesting operations. Each of the one or more headers or units includes a plurality of spindles and doffers for harvesting cotton plants. The doffer column has a plurality of doffers for removing the picked cotton from the spindles. Doffers are discs that can be coated with rubber or polyurethane and rotatably driven at a speed much greater than the speed of the spindles. In conventional cotton harvester row units, the spindles move below the bottom surface of the doffers so that the cotton is unfolded and stripped from the spindles. In some conventional systems, the doffer drive system is mechanically driven away from the spindle drive system, or at least two systems are mechanically coupled to each other. The mechanical coupling of the doffer and the spindle drive system enables the speed relationship to be maintained and also achieves correct functionality when the system is operated in harvesting mode. In other words, the spindles can be operated in a desired direction of travel. In other systems, the doffer drive system and the spindle drive system can be independently controlled. Summary of the invention

[0005] In one embodiment of the present disclosure, a lubrication system for lubricating a plurality of picking units connected to an agricultural machine is provided. Each of the plurality of picking units includes a cam track assembly, an idler gear assembly, a roller and drive gear assembly, and a roller assembly. The lubrication system includes a supply source of lubricant and a pump fluidly coupled to the supply source. A primary distributor is fluidly coupled to the pump and includes a plurality of outlets fluidly coupled to each of the plurality of picking units. A plurality of secondary distributors are each fluidly coupled to one of the plurality of outlets of the primary distributor. Each of the plurality of secondary distributors is fluidly coupled to one of the plurality of picking units. The primary distributor is configured to distribute an equal amount of lubricant to each of the plurality of secondary distributors in a given cycle.

[0006] In one example of this embodiment, the primary distributor distributes an equal amount of lubricant to each of the plurality of secondary distributors in a sequential order per cycle. In a second example, each secondary distributor is configured to supply a first amount of lubricant to the cam track assembly, a second amount of lubricant to the idler gear assembly, and a third amount of lubricant to the roller assembly. In a third example, each of the first amount, the second amount, and the third amount is predefined.

[0007] In a fourth example, the secondary distributor supplies lubricant to the cam track assembly, the idler gear assembly, and the roller assembly in the same sequential order per given cycle. In a fifth example, the lubrication system includes a proximity switch coupled to the primary distributor, the proximity switch configured to detect one complete cycle of lubricant dispensed to each of the plurality of secondary distributors.

[0008] In a sixth example, the cam track assembly of each of the plurality of picking units includes a cam track formed between an inner wall and an outer wall, the cam track defining a path around which a plurality of rollers move. An opening is formed in the cam track at a position offset from a centerline of the cam track and adjacent to the outer wall, such that the opening is fluidly coupled to an outlet port at the corresponding secondary distributor. In a seventh example, a fluid line is fluidly coupled between the outlet port at the corresponding secondary distributor and the cam track assembly, the fluid line including a connector coupled to the opening formed in the cam track; wherein lubricant is supplied to the cam track assembly by the corresponding secondary distributor via the fluid line. In an eighth example, the connector is threadedly coupled to the opening formed in the cam track.

[0009] In a ninth example, the idler gear assembly includes: a first idler gear having a plurality of gear teeth for engaging with a drum drive gear of the drum and drive gear assembly; a second idler gear having a plurality of gears for engaging with a spindle drive gear of the drum and drive gear assembly; a brush fin coupled to the second idler gear and configured to engage with a doffer drive gear of the drum and drive gear assembly; and a pin shaft defining an axis of rotation about which the first idler gear and the second idler gear are rotatably driven. The pin shaft includes an inner bore and an inlet opening coupled to the inner bore, the inlet opening being configured to receive lubricant from the corresponding secondary distributor. In a tenth example, the pin includes a second opening and a third opening defined therein, the second and third openings being fluidly coupled to the inlet opening via the inner bore, wherein lubricant supplied to the inlet opening flows through the inner bore and out of the inner bore through the second and third openings.

[0010] In a twelfth example, the first idler gear includes one or more fluid channels formed therein, the one or more fluid channels being fluidly coupled to the second opening or the third opening defined in the pin shaft. In a thirteenth example, a distributor plate is positioned between the first idler gear and the second idler gear, the distributor plate having a top surface and a bottom surface. One or more fluid cutouts are formed in the top surface of the distributor plate and are fluidly coupled to one of the second opening and the third opening in the pin shaft. One or more fluid passages are formed in the bottom surface of the distributor plate and are fluidly coupled to the other of the second opening and the third opening.

[0011] In a fourteenth example of an embodiment, a plurality of flow paths are formed between the inlet opening and the roller and drive gear assembly. The plurality of flow paths include: a first flow path defined in the pin between the inlet opening and the inner bore, a second flow path defined in the inner bore between the first flow path and the second opening, a third flow path defined in the inner bore between the first flow path and the third opening, a fourth flow path defined between the second or third opening and one or more fluid channels formed in the first idle gear, a fifth flow path defined between the second or third opening and at least one of the one or more fluid cutouts formed in the top surface of the distributor plate, a sixth flow path defined between the second or third opening and at least one of the one or more fluid passages formed in the bottom surface of the distributor plate, and a seventh flow path fluidly coupled to the fourth flow path, one of the fifth flow path and the sixth flow path and the brush fin.

[0012] In another example of an embodiment, a fluid line is fluidly coupled between the corresponding secondary distributor and the pin, and the fluid line includes a joint coupled to the inlet opening formed in the pin, so that lubricant is supplied to the pin from the corresponding secondary distributor via the fluid line. In yet another example, the joint is threadedly coupled to the inlet opening formed in the pin.

[0013] In another example, the drum assembly includes: a shaft having a defined inner bore, the inner bore including an inlet opening at one end thereof, the inlet opening being configured to receive lubricant from the corresponding secondary distributor; and a star-shaped member or spider member, the star-shaped member being coupled to the shaft. The star-shaped member defines a chamber for receiving lubricant flowing through the inner bore. The star-shaped member includes a plurality of fluid outlets formed in the chamber and fluidly coupled to the inner bore via the chamber. In yet another example, each of the plurality of fluid outlets formed in the chamber is fluidly coupled to a separate picking rod, the separate picking rod being coupled to the drum assembly. In yet another example, a plurality of defined fluid channels are formed in the star-shaped member between the shaft and the plurality of fluid outlets. In yet another example, a fluid line is fluidly coupled between the corresponding secondary distributor and the inlet opening in the shaft. The fluid line includes a joint coupled to the inlet opening formed in the pin shaft, so that lubricant is supplied to the shaft by the corresponding secondary distributor via the fluid line. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The above-mentioned aspects of the present disclosure and the manner of obtaining them will become more apparent, and the present disclosure itself will be better understood, through the following description of embodiments of the present disclosure with reference to the accompanying drawings, in which:

[0015] Figure 1 is a perspective view of a portion of an exemplary embodiment of a cotton harvester unit of an agricultural machine;

[0016] Figure 2 is a schematic diagram of an exemplary embodiment of a lubrication system for a multi-header agricultural machine;

[0017] Figure 3 yes Figure 2 A schematic diagram of an exemplary embodiment of a primary distributor of a lubrication system;

[0018] Figure 4 is another schematic diagram of an exemplary embodiment of a primary distributor;

[0019] Figure 5 yes Figure 2 A schematic diagram of an exemplary embodiment of a fluid pressure control assembly of a lubrication system;

[0020] Figure 6 yes Figure 2 A schematic diagram of an exemplary embodiment of a secondary distributor of a lubrication system;

[0021] Figure 7is a perspective view of an exemplary embodiment of a portion of a cotton harvester unit and a lubrication system;

[0022] Figure 8 is a schematic diagram of an exemplary embodiment of a cam track assembly;

[0023] Fig. 9 is a perspective view of an exemplary embodiment of a cam track assembly of a cotton harvester unit;

[0024] Fig.10 is a partial cross-sectional view of an exemplary embodiment of a drive gear assembly and an idler gear assembly for a cotton harvester unit;

[0025] Fig.11 is a top perspective view of an exemplary embodiment of an idler gear assembly for a cotton harvester unit;

[0026] Fig.12 yes Fig.11 A partial cross-sectional view of an exemplary embodiment of an idler gear assembly;

[0027] Fig.13 yes Fig.12 A cross-sectional view of a pin of an idler gear assembly;

[0028] Fig.14 yes Fig.11 a bottom perspective view of an idler gear assembly;

[0029] Fig.15 yes Fig.11 a perspective view of an exemplary embodiment of an idler gear of an idler gear assembly;

[0030] Fig.16A yes Fig.11 a top perspective view of an exemplary embodiment of a distributor plate of an idler gear assembly;

[0031] Fig. 16B yes Fig.11 a bottom perspective view of an exemplary embodiment of a distributor plate of an idler gear assembly;

[0032] Fig.17 yes Fig.11 a cross-sectional perspective view of an idler gear assembly;

[0033] Fig.18 is a cross-sectional view of a portion of an exemplary embodiment of a picking drum assembly;

[0034] Fig.19 yes Fig.18 A bottom perspective view of an exemplary embodiment of a star-shaped member of a picking drum assembly;

[0035] Fig. 20 yes Fig.18 A partial cross-sectional view of an exemplary embodiment of a shaft of a picking drum assembly;

[0036] Fig.21 is a perspective view of an exemplary embodiment of a lubrication fitting and a retaining plate for a lubrication system of a cotton harvester unit;

[0037] Fig. 22 is used for Fig.21 A partial perspective view of one embodiment of a lubrication joint and a mounting plate of a fixed plate;

[0038] Fig.23 is another exemplary embodiment of a lubrication fitting and retaining plate for a lubrication system of a cotton harvester unit;

[0039] Fig.24 yes Fig.11 a bottom perspective view of another exemplary embodiment of an idler gear assembly;

[0040] FIG. 25A to FIG. 25B They are Fig.11 A top perspective view and a bottom perspective view of another exemplary embodiment of a distributor plate of an idler gear assembly of FIG. 1 ; and

[0041] Fig.26 is a perspective view of an idler gear assembly for a cotton harvester;

[0042] Fig. 27 yes Fig.26 a partial perspective cross-sectional view of an idler gear assembly;

[0043] Fig.28 is a bottom perspective view of the spacer;

[0044] Fig.29 It is a perspective view of the pin;

[0045] Fig.30 yes Fig.26 a partial cross-sectional view of an idler gear assembly;

[0046] FIG. 31A to FIG. 31B They are Fig.26 A top perspective view and a bottom perspective view of another exemplary embodiment of a distributor plate of an idler gear assembly;

[0047] Fig.32 is a schematic diagram of another exemplary embodiment of a lubrication system for a multi-header agricultural machine; and

[0048] Fig.33 is a schematic diagram of yet another exemplary embodiment of a lubrication system for a multi-header agricultural machine.

[0049] Corresponding reference numerals are used to indicate corresponding parts throughout the several views. DETAILED DESCRIPTION

[0050] The embodiments of the present disclosure described below are not intended to be exhaustive or to limit the present disclosure to the precise forms described in the following detailed description. Rather, the embodiments are selected and described so that others skilled in the art can understand and appreciate the principles and practices of the present disclosure.

[0051] refer to Figure 1 , illustrates an example of a cotton harvester unit 100 of a cotton harvester. The cotton harvester unit 100 may also be referred to as a picking unit. The cotton harvester may include a plurality of picking units. For example, a cotton harvester may include up to six different picking units, each of which includes a front drum and a rear drum. Other machines may include a different number of picking units, such as two, three, four, etc. In any case, each picking unit may include a frame 115 having a front or first end 104 and a rear or second portion 102. The drum is rotatably coupled to the frame 115. In at least one picking unit, there are a front drum 122 and a rear drum 120. A plurality of rows of rods or spindles 125 are rotatably coupled to the front drum 122 and the rear drum 120. A doffer column 130 having a plurality of doffers 135 is rotatably supported by a bearing housing (not shown). The plurality of doffers 135 are positioned adjacent to the spindles 125 and are configured to remove cotton from the spindles 125 during a harvesting operation. The bearing housing (not shown) may be threadably engaged with a stationary housing (not shown) coupled to the frame 115. Fig.23 It shows something like Figure 1 Another example of a cotton harvester unit of a cotton harvester is shown in FIG.

[0052] In a cotton harvester, a conventional lubrication system is provided for distributing a lubricant (e.g., grease) to various components and locations of each picking unit. Operation of the picking units typically includes periodic (e.g., daily) servicing to lubricate each picking unit with the lubrication system. When the operator of the cotton harvester places the machine in a lubrication mode and the machine is parked, the servicing operation is performed with the conventional lubrication system. The conventional lubrication process includes rotating each picking unit at a low speed and applying grease or other lubricant to lubricate the mechanical components in the picking unit.

[0053] For example, a conventional lubrication process includes providing a flow of lubricant from a pump through a conventional filter or strainer. The lubricant is supplied to a restriction-based pressure distributor that distributes the lubricant to each picking unit. Because the pressure distributor is restriction-based, separate hoses of equal length are connected between the pressure distributor and each picking unit. In the case of a conventional restriction-based lubrication system, unequal amounts of lubricant are typically supplied to each position on each picking unit. Some picking units may be over-lubricated, while other picking units may be under-lubricated. In some instances, a conventional lubrication system may continuously supply lubricant to one or more of the picking units that already have sufficient lubricant until the last remaining picking unit is fully lubricated. Supplying too much lubricant to those picking units that are already fully lubricated is wasteful, increases startup resistance and warm-up time, and increases operating costs.

[0054] In some instances, one or more of the hoses may be kinked, thereby affecting restriction of lubricant flow through the hoses. In other instances, there may be more restriction of lubricant delivery to one picking unit and less restriction to another, thereby causing unequal distribution of lubricant to each picking unit. Additionally, the temperature of the lubricant affects the lubrication process. Changes in temperature change the viscosity of the lubricant flowing through the lubrication system and may cause unequal distribution of lubricant to each picking unit.

[0055] Furthermore, conventional lubrication processes are typically managed and checked by the operator of the machine. After performing the lubrication process for a period of time, the operator checks different locations at one or more picking units to determine whether sufficient lubricant has been supplied to a given location. This typically results in some picking units receiving more lubricant than other picking units. Therefore, it may be desirable to provide a lubrication system for a cotton harvester or other agricultural machine that can provide an equal distribution of lubricant during the lubrication process.

[0056] In the present disclosure, a lubrication system for a cotton harvester is described. However, the principles and teachings of the present disclosure are not limited to lubrication systems for cotton harvesters only, but are applicable to other agricultural machines.

[0057] Reference to the present disclosure Figure 2 , an exemplary embodiment of a lubrication system 200 is shown. The lubrication system 200 includes a lubrication or grease pump system 202 for supplying lubricant to one or more headers or picking units of an agricultural machine (e.g., a cotton harvester). Figure 2In the system 200, a multi-header or picking unit assembly 214 is shown. Specifically, an assembly 214 with six picking units is shown. By way of example, the agricultural machine includes a first picking unit 216, a second picking unit 218, a third picking unit 220, a fourth picking unit 222, a fifth picking unit 224, and a sixth picking unit 226. The lubrication system 200 is designed to provide lubricant from the pump system 202 to each picking unit, as described below.

[0058] The pump system 202 includes a pump 204 and a reservoir 206. The reservoir 206 stores lubricant and is fluidly coupled to the pump 204. The pump 204 supplies the lubricant into a supply line 244. A pressure limiting valve 208 is located downstream of the pump 204 and is fluidly coupled to the reservoir 206 via a return line 246. In other embodiments, a pressure sensor and a pressure switch may be used. In some embodiments, a pressure limiting valve 208 and a pressure switch and / or a pressure sensor may be used.

[0059] like Figure 2 and Figure 5 As shown in FIG, lubricant is supplied through a filter 262 or screen via a supply line 244. A pressure sensor 260 and a pressure switch 264 are located downstream of the pump 204 along the supply line 244. Figure 5 In the embodiment of the present invention, for example, the pressure switch 264 is located upstream of the filter 262 and is configured to detect a flow blockage or restriction in the filter 262. The pressure sensor 260 is located downstream of the filter 262 and is configured to sense the fluid or lubricant pressure in the supply line 244. In other embodiments, other arrangements of the pressure switch 264 and the pressure sensor 260 are possible. For example, in one embodiment, the pressure sensor 260 and the pressure switch 264 can be located upstream of the filter 262. In another embodiment, the pressure sensor 260 and the pressure switch 264 can be located downstream of the filter 262. In yet another embodiment, there can be one or more pressure sensors 260 and pressure switches 264 located upstream and / or downstream of the filter 262. Although not shown, each pressure sensor 260 and pressure switch 264 can communicate with a controller or control system to transmit a signal thereto. The controller or control system can provide an alarm or status information to the operator of the machine, for example, on a display in the cab of the machine, or to a laptop, mobile phone or other device located away from the machine.

[0060] The lubricant is supplied to the primary distributor 210 located downstream of the pump system 202 via the pump 204 through the supply line 244. The primary distributor 210 (also referred to as a progressive distributor) is configured to distribute the lubricant to each picking unit sequentially. More specifically, the primary distributor 210 is configured to distribute a specific volume of lubricant to the first picking unit 216, then the second picking unit 218, the third picking unit 220, and so on. During operation, the primary distributor 210 ensures that: each cycle, each picking unit receives the same volume of lubricant as the other picking units. Therefore, Figure 2 The lubrication system 200 is not a restriction-based lubrication system as described above. Instead, the primary dispenser 210 includes a sensor, such as a proximity switch 212, configured to count cycles. The proximity switch 212 can be used to determine the amount or volume of lubricant dispensed to each picking unit. In addition, the proximity switch 212 can be used to determine how many cycles are required to achieve a threshold or sufficient amount of lubrication at each picking unit. The proximity switch 212 is not affected by temperature changes in the lubricant, but rather counts or detects the number of cycles that lubrication is dispensed to each picking unit.

[0061] refer to Figure 3 and Figure 4 , a primary distributor 210 and a proximity switch 212 are shown. There are a plurality of fluid lines or hoses coupled to the primary distributor 210 for supplying fluid downstream of the primary distributor 210 and to one of the plurality of picking units. For example, a first fluid line 248 is coupled to the primary distributor 210 and supplies lubricant to the first picking unit 216. A second fluid line 250 of the plurality of fluid lines is coupled to the primary distributor 210 and supplies lubricant to the second picking unit 218. A third fluid line 252 of the plurality of fluid lines is coupled to the primary distributor 210 and supplies lubricant to the third picking unit 220. A fourth fluid line 254 of the plurality of fluid lines is coupled to the primary distributor 210 and supplies lubricant to the fourth picking unit 222. A fifth fluid line 256 of the plurality of fluid lines is coupled to the primary distributor 210 and supplies lubricant to the fifth picking unit 224. A sixth fluid line 258 of the plurality of fluid lines is coupled to the primary distributor 210 and supplies lubricant to the sixth picking unit 226 .

[0062] In some embodiments, the primary distributor 210 can be configured to distribute the same amount of lubricant to each of the picking units per cycle. In other embodiments, the amount of lubricant allocated to the first fluid line 248 and the sixth fluid line 258 can be different from the amount of lubricant allocated to the second fluid line 250 and the fifth fluid line 256. In the same way, the amount of lubricant allocated to the third fluid line 252 and the fourth fluid line 254 can also be different. The different volumes of fluid distributed at each fluid line can depend on the corresponding output at the primary distributor. In a non-limiting exemplary embodiment, the primary distributor 210 can include a first output of 760cc for the first and sixth fluid lines, a second output of 760cc for the second and fifth fluid lines, and a third output of 760cc for the third and fourth fluid lines. In this exemplary embodiment, the amount of lubricant supplied to each of the fluid lines per cycle is approximately the same. If any one of the first output, the second output, or the third output is different, the amount of lubricant allocated to the corresponding fluid line from the primary distributor will be different. As will be described below, the same is true with respect to the secondary distributor 600 (eg, a first output of 50 cc, a second output of 50 cc, a third output of 150 cc, and a fourth output of 200 cc).

[0063] Multiple check valves may also be incorporated into different fluid lines downstream of the primary distributor 210. Figure 3 and Figure 4 In, for example, the first check valve 400 is fluidly disposed between the primary distributor 210 and the fourth fluid line 254. The first check valve 400 is configured to prevent the lubricant from flowing back into the primary distributor 210. Similarly, the second check valve 402 is fluidly disposed between the primary distributor 210 and the fifth fluid line 256. The third check valve 404 and the fourth check valve 406 are fluidly disposed between the primary distributor 210 and the sixth fluid line 258 and the first fluid line 248, respectively. In addition, the fifth check valve 408 and the sixth check valve 408 are fluidly disposed between the primary distributor 210 and the second fluid line 250 and the third fluid line 252, respectively. Therefore, each of the multiple fluid lines is fluidly coupled to a different port associated with the primary distributor 210. The primary distributor 210 may include additional ports to which the fluid line or hose is not connected. For example, in Figure 2 In the embodiment of FIG. 2 , the first port 240 and the second port 242 are blocked such that lubricant is not dispensed from the primary distributor 210 through either port.

[0064] When lubricant is distributed to each picking unit via the primary distributor 210, the lubricant is supplied to the secondary distributor through the corresponding fluid line (e.g., the first fluid line 248). In one embodiment, each picking unit includes its own secondary distributor. In other embodiments, two or more picking units can be fluidly connected to the same secondary distributor. In some embodiments, the secondary distributor is the same for each of the picking units or is common to each of the picking units. In other embodiments, the secondary distributor is the same for at least two or more of the picking units.

[0065] In several embodiments, the primary distributor is dedicated to a specific agricultural machine and multiple picking units connected to the machine. For example, in one embodiment, an agricultural machine with four picking units can utilize one primary distributor, while an agricultural machine with six picking units can utilize a different primary distributor. In some embodiments, each machine can include only one primary distributor and multiple secondary distributors for each picking unit. In other embodiments, each machine can include two or more primary distributors. In another embodiment, an agricultural machine can include multiple primary distributors and multiple secondary distributors in the lubrication system.

[0066] exist Figure 2 In FIG, each picking unit is shown including its own secondary distributor. Figure 6 , an exemplary embodiment of a secondary distributor 600 is shown. The secondary distributor 600 includes an inlet for receiving lubricant from the primary distributor 210. The lubricant is then distributed by the secondary distributor 600 to different locations on a particular picking unit via one of a plurality of ports. Figure 6 The secondary distributor 600 is shown as having eight (8) ports. In other embodiments, the secondary distributor may include fewer or additional ports. Figure 6 , the secondary distributor 600 includes a first port 602, a second port 604, a third port 606, a fourth port 608, a fifth port 610, a sixth port 612, and a pair of blocked ports 614 and 616. The fifth port 610 and the blocked port 614 can be swapped. The sixth port 612 and the blocked port 616 can also be swapped to facilitate hose routing.

[0067] Separate fluid lines or hoses may be coupled to each of the ports of the secondary distributor 600 for delivering lubricant to various locations on each picking unit. Figure 2, for example, the first supplemental fluid line 228 can be fluidly coupled to the first port 602 of the secondary distributor 600. The second supplemental fluid line 230 can be fluidly coupled to the second port 604 of the secondary distributor 600. The third supplemental fluid line 232 and the fourth supplemental fluid line 234 can be fluidly coupled to the third port 606 and the fourth port 608, respectively. Similarly, the fifth supplemental fluid line 236 and the sixth supplemental fluid line 238 can be fluidly coupled to the fifth port 610 and the sixth port 612 of the secondary distributor 600, respectively.

[0068] Despite Figure 2 and Figure 6 2, but in one embodiment, the first supplemental fluid line 228 is configured to supply lubricant to the front cam track on the picking unit. The second fluid line 230 is configured to supply lubricant to the rear cam track on the picking unit. The third supplemental fluid line 232 and the fourth supplemental fluid line 234 are configured to supply lubricant to the front idler gear assembly and the rear idler gear assembly on the picking unit, respectively. The fifth supplemental fluid line 236 and the sixth supplemental fluid line 238 are configured to supply lubricant to the front roller assembly and the rear roller assembly on the picking unit, respectively. Each of these positions will be described in further detail below. Nevertheless, in the first cycle, the secondary distributor 600 can distribute a specific volume of lubricant from ports 610 and 614 to the fifth supplemental fluid line 236, and then distribute a specific volume of lubricant from ports 612 and 616 to the sixth supplemental fluid line 238. Sequentially, the secondary distributor 600 is capable of supplying a predefined amount of lubricant to each of the supplemental fluid lines in each cycle.

[0069] Each secondary distributor 600 is configured to receive the lubricant flow from the primary distributor 210 and distribute a metered or predefined amount of lubricant to each active port. Figure 6In the embodiment of the present invention, the port 614 of the secondary distributor 600 is blocked, so that the metered or predefined amount of lubricant is redirected through the port 610. The port 616 of the secondary distributor 600 is blocked, so that the metered or predefined amount of lubricant is redirected through the port 612. In an exemplary embodiment, the first supplementary fluid line 228 and the second supplementary fluid line 230 can be configured to supply 0.050 cubic centimeters (cc) to the front cam track and the rear cam track per cycle. In another exemplary embodiment, the third supplementary fluid line 232 and the fourth supplementary fluid line 234 can be configured to supply 0.050cc to the front idler gear assembly and the rear idler gear assembly per cycle. In another exemplary embodiment, the fifth supplementary fluid line 236 can be configured to supply 300cc of lubricant to the rear roller assembly per cycle. Of the 300cc, 150cc comes from the port 610, and the other 150cc is redirected from the blocked port 614. The sixth makeup fluid line 238 can be configured to supply 400cc of lubricant to the front roller assembly per cycle. Of the 400cc, 200cc comes from port 612 and the other 200cc is redirected from blocking port 616. The above volume of lubricant supplied to each location on the picking unit is not intended to be limiting and is merely an example used for illustrative purposes. In other embodiments, the specific volume of lubricant distributed to each location on the picking unit via the lubrication system may vary. In any case, the specific amount of lubricant distributed to each location may be in the range of 1 to 400cc. Figure 2 As previously described, due to variations in temperature and other restrictions in the system, conventional restriction-based lubrication systems supply different and inconsistent amounts of lubricant to each location on the picking unit, whereas Figure 2 The lubrication system 200 distributes a predefined amount of fluid to each position on the picking unit. The primary distributor 210 can ensure that each picking unit receives an equal amount of lubricant per cycle, and each secondary distributor can distribute a predefined amount of lubricant to each position on the picking unit per cycle without over-lubricating some positions and under-lubricating other positions.

[0070] exist Figure 2 In the embodiment of, a picking header assembly 214 including six picking units is shown. In other embodiments, the picking header assembly may include any number of picking units. For example, in one embodiment, there may be two or more picking units. In another embodiment, there may be three or more picking units. In yet another embodiment, there may be four or more picking units. The present disclosure is not limited to any number of picking units on a picking header assembly, and is intended to cover one or more picking units on a given picking header assembly.

[0071] Reference to the present disclosure Fig.32 , an exemplary embodiment of a lubrication system 3200 is shown. The lubrication system 3200 includes a lubrication or grease pump system 202 for supplying lubricant to one or more headers or picking units of an agricultural machine (e.g., a cotton harvester). Fig.32 In the system 3200, a multi-header or picking unit assembly 3204 is shown. Specifically, an assembly 3204 having four picking units is shown. By way of example, the agricultural machine includes a first picking unit 3206, a second picking unit 3208, a third picking unit 3210, and a fourth picking unit 3212. The lubrication system 3200 is designed to provide lubricant from the pump system 202 to each picking unit, as described below.

[0072] Similar to Figure 2 , the pump system 202 includes a pump 204 and a reservoir 206. The reservoir 206 stores lubricant and is fluidly coupled to the pump 204. The pump 204 supplies the lubricant into a supply line 244. A pressure limiting valve 208 is located downstream of the pump 204 and is fluidly coupled to the reservoir 206 via a return line 246. In other embodiments, a pressure sensor and a pressure switch may be used. In some embodiments, a pressure limiting valve 208 and a pressure switch and / or a pressure sensor may be used.

[0073] exist Fig.32 262 or a filter screen. A pressure sensor 260 and a pressure switch 264 are located downstream of the pump 204 along the supply line 244. The pressure switch 264 may be located upstream of the filter 262 and configured to detect a flow blockage or restriction in the filter 262. The pressure sensor 260 is located downstream of the filter 262 and configured to sense the fluid or lubricant pressure in the supply line 244. In other embodiments, other arrangements of the pressure switch 264 and the pressure sensor 260 are possible. For example, in one embodiment, the pressure sensor 260 and the pressure switch 264 may be located upstream of the filter 262. In another embodiment, the pressure sensor 260 and the pressure switch 264 may be located downstream of the filter 262. In yet another embodiment, there may be one or more pressure sensors 260 and pressure switches 264 located upstream and / or downstream of the filter 262. Although not shown, each pressure sensor 260 and the pressure switch 264 may communicate with a controller or control system to transmit a signal thereto. The controller or control system may provide alerts or status information to an operator of the machine, such as on a display in the cab of the machine, or to a laptop, mobile phone, or other device located remotely from the machine.

[0074] The lubricant is supplied via the pump 204 through the supply line 244 to the primary distributor 3202 located downstream of the pump system 202. The primary distributor 3202 (also referred to as a progressive distributor) is configured to distribute the lubricant to each picking unit sequentially. More specifically, the primary distributor 3202 is configured to distribute a specific volume of lubricant to the first picking unit 3206, then the second picking unit 3208, the third picking unit 3210, and the fourth picking unit 3212. During operation, the primary distributor 3202 ensures that: each cycle, each picking unit receives the same volume of lubricant as the other picking units. Therefore, Fig.32 The lubrication system 3200 is not a restriction based lubrication system. Instead, the primary dispenser 3202 includes a sensor, such as a proximity switch 212, configured to count cycles. The proximity switch 212 can be used to determine the amount or volume of lubricant dispensed to each picking unit. In addition, the proximity switch 212 can be used to determine how many cycles are required to achieve a threshold or sufficient amount of lubrication at each picking unit. The proximity switch 212 is not affected by temperature changes in the lubricant, but rather counts or detects the number of cycles that lubrication is dispensed to each picking unit.

[0075] like Fig.32 As shown in , there are multiple fluid lines or hoses connected to the primary distributor 3202 for supplying fluid to the downstream of the primary distributor 3202 and to one of the multiple picking units. For example, a first fluid line 3214 is connected to the primary distributor 3202 and supplies lubricant to the first picking unit 3206. A second fluid line 3216 of the multiple fluid lines is connected to the primary distributor 3202 and supplies lubricant to the second picking unit 3208. A third fluid line 3218 of the multiple fluid lines is connected to the primary distributor 3202 and supplies lubricant to the third picking unit 3210. A fourth fluid line 3220 of the multiple fluid lines is connected to the primary distributor 3202 and supplies lubricant to the fourth picking unit 3212. The primary distributor 3202 may also include a pair of fluid connections 3222 that are blocked. These fluid connections 3222 may be used in the event that additional picking units are coupled to the picking header assembly 3204. Due to the location of the blocked fluid connections, the amount of lubricant that would otherwise be distributed to the fluid line coupled to the fluid connection 3222 may now be distributed to the fluid connection on the opposite side of the primary distributor 3202. In other words, additional lubricant may be distributed through the first fluid line 3214 and the fourth fluid line 3220 because the side of the primary distributor 3202 opposite these fluid lines is the blocked fluid connection 3222. In other embodiments, the same amount of lubricant may be fluidly distributed to the first fluid line 3214 and the fourth fluid line 3220. Fig.32 Each of the four fluid lines shown in .

[0076] Similar to Figure 2 The harvesting header assembly 214, Fig.32 Each harvesting unit of the harvesting header assembly 3204 may include its own secondary distributor. Figure 6 As described, each secondary distributor may include an inlet for receiving lubricant from the primary distributor 3202. The lubricant is then distributed by the secondary distributor to different locations on a particular picking unit via one of a plurality of ports. Figure 6 The secondary distributor 600 of the present invention, the first picking unit 3206 may include a secondary distributor having eight (8) ports. In other embodiments, the secondary distributor may include fewer or additional ports.

[0077] A separate fluid line or hose may be coupled to each of the ports of the secondary distributor for delivering lubricant to various locations on each picking unit. Fig.32 , for example, the first supplementary fluid line 3224 can be fluidly coupled to the first port of the secondary distributor. The second supplementary fluid line 3226 can be fluidly coupled to the second port of the secondary distributor. The third supplementary fluid line 3228 and the fourth supplementary fluid line 3230 can be fluidly coupled to the third port and the fourth port, respectively. Similarly, the fifth supplementary fluid line 3232 and the sixth supplementary fluid line 3236 can be fluidly coupled to the fifth port and the sixth port, respectively, of the secondary distributor. Fig.32 The primary distributor 3202 in the embodiment includes a blocked fluid connector 3222 or port to which a fluid line or hose is not connected. In this way, the first blocked port 3234 and the second blocked port 3238 are blocked at the secondary distributor so that lubricant is not distributed from the primary distributor 3202 through any port.

[0078] exist Fig.32In an exemplary embodiment of the present invention, the first supplemental fluid line 3224 can be configured to supply lubricant to the front cam track on the first picking unit 3206. The second fluid line 3226 can be configured to supply lubricant to the rear cam track on the first picking unit 3206. The third supplemental fluid line 3228 and the fourth supplemental fluid line 3230 can be configured to supply lubricant to the front idler gear assembly and the rear idler gear assembly on the first picking unit 3206, respectively. The fifth supplemental fluid line 3232 and the sixth supplemental fluid line 3236 can be configured to supply lubricant to the front roller assembly and the rear roller assembly on the first picking unit 3206, respectively. In this exemplary embodiment, in a first cycle, the secondary distributor on the first picking unit 3206 can distribute a specific volume of lubricant from two ports in the secondary distributor into the fifth supplemental fluid line 3232, and then distribute a specific volume of lubricant from two ports in the secondary distributor into the sixth supplemental fluid line 3236. Sequentially, the secondary distributor is capable of supplying a predefined amount of lubricant to each of the make-up fluid lines in each cycle.

[0079] Reference to the present disclosure Fig.33 , another exemplary embodiment of a lubrication system 3300 is shown. The lubrication system 3300 includes a lubrication or grease pump system 202 for supplying lubricant to one or more headers or picking units of an agricultural machine (e.g., a cotton harvester). Fig.33 In the system 3300 of FIG. 20 , a multi-header or picking unit assembly 3304 is shown. Specifically, an assembly 3304 having three picking units is shown. By way of example, the agricultural machine includes a first picking unit 3306, a second picking unit 3308, and a third picking unit 3210. The lubrication system 3300 is designed to provide lubricant from the pump system 202 to each picking unit, as described below.

[0080] Fig.33 The pump system 202 is similar to Figure 2 and Fig.32 200 and 210. The pump system of the present invention is a pump system in a pump 204 and includes a pump 204 and a reservoir 206. The reservoir 206 stores lubricant and is fluidly coupled to the pump 204. The pump 204 supplies the lubricant into a supply line 244. A pressure limiting valve 208 is located downstream of the pump 204 and is fluidly coupled to the reservoir 206 via a return line 246. In other embodiments, a pressure sensor and a pressure switch may be used. In some embodiments, a pressure limiting valve 208 and a pressure switch and / or a pressure sensor may be used.

[0081] exist Fig.33262 or a filter screen. A pressure sensor 260 and a pressure switch 264 are located downstream of the pump 204 along the supply line 244. The pressure switch 264 may be located upstream of the filter 262 and configured to detect a flow blockage or restriction in the filter 262. The pressure sensor 260 is located downstream of the filter 262 and configured to sense the fluid or lubricant pressure in the supply line 244. In other embodiments, other arrangements of the pressure switch 264 and the pressure sensor 260 are possible. For example, in one embodiment, the pressure sensor 260 and the pressure switch 264 may be located upstream of the filter 262. In another embodiment, the pressure sensor 260 and the pressure switch 264 may be located downstream of the filter 262. In yet another embodiment, there may be one or more pressure sensors 260 and pressure switches 264 located upstream and / or downstream of the filter 262. Although not shown, each pressure sensor 260 and the pressure switch 264 may communicate with a controller or control system to transmit a signal thereto. The controller or control system may provide alerts or status information to an operator of the machine, such as on a display in the cab of the machine, or to a laptop, mobile phone, or other device located remotely from the machine.

[0082] The lubricant is supplied via the pump 204 through the supply line 244 to the primary distributor 3302 located downstream of the pump system 202. The primary distributor 3302 (also referred to as a progressive distributor) is configured to distribute the lubricant sequentially to each picking unit. More specifically, the primary distributor 3302 is configured to distribute a specific volume of lubricant to the first picking unit 3306, then the second picking unit 3308, and then the third picking unit 3310. During operation, the primary distributor 3302 ensures that: each cycle, each picking unit receives the same volume of lubricant as the other picking units. Therefore, Fig.33 The lubrication system 3300 is not a restriction based lubrication system. Instead, the primary dispenser 3302 includes a sensor, such as a proximity switch 212, configured to count cycles. The proximity switch 212 can be used to determine the amount or volume of lubricant dispensed to each picking unit. In addition, the proximity switch 212 can be used to determine how many cycles are required to achieve a threshold or sufficient amount of lubrication at each picking unit. The proximity switch 212 is not affected by temperature changes in the lubricant, but rather counts or detects the number of cycles that lubrication is dispensed to each picking unit.

[0083] like Fig.33As shown in , there are multiple fluid lines or hoses connected to the primary distributor 3302 for supplying fluid downstream of the primary distributor 3302 and to one of the multiple picking units. For example, a first fluid line 3314 is connected to the primary distributor 3302 and supplies lubricant to the first picking unit 3306. A second fluid line 3316 of the multiple fluid lines is connected to the primary distributor 3302 and supplies lubricant to the second picking unit 3308. A third fluid line 3318 of the multiple fluid lines is connected to the primary distributor 3302 and supplies lubricant to the third picking unit 3310. The primary distributor 3302 may also include one or more fluid connectors 3320 that are blocked. These fluid connectors 3320 may be used when additional picking units are connected to the picking header assembly 3304. Due to the location of the blocked fluid connection, the amount of lubricant that would otherwise be distributed to the fluid lines coupled to the fluid connection 3320 is now distributed to the fluid connections on the opposite side of the primary distributor 3302. In other words, additional lubricant (e.g., approximately 1.5 to 2.0 times the amount) can be distributed through the first fluid line 3314, the second fluid line 3316, and the third fluid line 3318 because the side of the primary distributor 3302 opposite these fluid lines is the blocked fluid connection 3320. In other embodiments, the same amount of lubricant can be fluidly distributed to the fluid lines. Fig.33 Each of the three fluid lines shown in .

[0084] Similar to Figure 2 The harvesting header assembly 214, Fig.33 Each harvesting unit of the harvesting header assembly 3304 may include its own secondary distributor. Figure 6 and Fig.32 As described, each secondary distributor may include an inlet for receiving lubricant from the primary distributor 3302. The lubricant is then distributed by the secondary distributor to different locations on a particular picking unit via one of a plurality of ports. Figure 6 The secondary distributor 600 of the present invention, the first picking unit 3306 may include a secondary distributor having eight (8) ports. In other embodiments, the secondary distributor may include fewer or additional ports.

[0085] A separate fluid line or hose may be coupled to each of the ports of the secondary distributor for delivering lubricant to various locations on each picking unit. Fig.33, for example, the first supplementary fluid line 3324 can be fluidly coupled to the first port of the secondary distributor. The second supplementary fluid line 3326 can be fluidly coupled to the second port of the secondary distributor. The third supplementary fluid line 3328 and the fourth supplementary fluid line 3330 can be fluidly coupled to the third port and the fourth port, respectively. Similarly, the fifth supplementary fluid line 3332 and the sixth supplementary fluid line 3334 can be fluidly coupled to the fifth port and the sixth port, respectively, of the secondary distributor. Fig.33 The primary distributor 3302 in the embodiment includes a blocked fluid connector 3320 or port to which a fluid line or hose is not connected. In this way, the first port 3334 and the second port 3338 are blocked at the secondary distributor so that lubricant is not distributed from the primary distributor 3302 through any port.

[0086] exist Fig.33 In an exemplary embodiment of the present invention, the first supplemental fluid line 3324 can be configured to supply lubricant to the front cam track on the first picking unit 3306. The second fluid line 3326 can be configured to supply lubricant to the rear cam track on the first picking unit 3306. The third supplemental fluid line 3328 and the fourth supplemental fluid line 3330 can be configured to supply lubricant to the front idler gear assembly and the rear idler gear assembly on the first picking unit 3306, respectively. The fifth supplemental fluid line 3332 and the sixth supplemental fluid line 3336 are configured to supply lubricant to the front roller assembly and the rear roller assembly on the first picking unit 3306, respectively. In this exemplary embodiment, in a first cycle, the secondary distributor on the first picking unit 3306 can distribute a specific volume of lubricant from two ports in the secondary distributor into the fifth supplemental fluid line 3332, and then distribute a specific volume of lubricant from two ports in the secondary distributor into the sixth supplemental fluid line 3336. Sequentially, the secondary distributor is capable of supplying a predefined amount of lubricant to each of the make-up fluid lines in each cycle.

[0087] Now refer to the present disclosure Figure 7 , showing a portion of a picking unit 700. The picking unit 700 may be similar to Figure 2216, the second picking unit 218, the third picking unit 220, the fourth picking unit 222, the fifth picking unit 224 and / or the sixth picking unit 226. The picking unit 700 may include a first or front assembly 704 and a second or rear assembly 706. The first or front assembly 704 includes a first cam track assembly 708, a first drive gear assembly 720, a first idler gear assembly 722 and a first roller assembly 760. The second or rear assembly 706 includes a second cam track assembly 710, a second drive gear assembly 724, a second idler gear assembly 726 and a second roller assembly 762. A first roller assembly 760 including a first star member 756 is shown, and a second roller assembly 762 including a second star member 758 is shown. The star members will be described in further detail below.

[0088] Similar to Figures 2 to 6 The lubrication system depicted in the lubrication system can be used to supply lubricant to each location in the picking unit 700. Figure 7 In an embodiment, for example, the picking unit 700 includes a secondary distributor 600 coupled to a frame or support member on the picking unit 700. The secondary distributor 600 is fluidly coupled to a supply line 752, which supplies lubricant to the secondary distributor 600 via a fluid supply source 702. The fluid supply source 702 can be a first fluid line 248, a second fluid line 250, a third fluid line 252, a fourth fluid line 254, a fifth fluid line 256, or a sixth fluid line 258. As described above, the fluid supply source 702 can be fluidly coupled to the primary distributor 210. The secondary distributor 600 includes an inlet port 754, such as Figure 7 As shown in FIG. 6 , a supply line 752 is fluidly coupled to an inlet port 754 for supplying lubricant to the secondary distributor 600 .

[0089] As described above, the secondary distributor 600 meters a specific volume of lubricant to each location on the picking unit 700 per cycle. In an exemplary embodiment, the secondary distributor 600 distributes the lubricant to the first cam track assembly 708 via the fluid line 716. The fluid line 716 may correspond to Figure 2 The secondary distributor 600 may be coupled to the first replenishment fluid line 228 of the secondary distributor 600. A fluid connector or coupling 712 may be coupled to the first cam track assembly 708 for delivering lubricant to the first cam track assembly 708. Once the lubricant is supplied to the first cam track assembly 708, the secondary distributor 600 distributes a predefined amount of lubricant to the second cam track assembly 710 via another fluid line 718. The fluid line 718 may be coupled to the secondary distributor 600. Figure 2The second supplementary fluid line 230 corresponds to the second supplementary fluid line 230. The second joint or coupling 714 can be coupled to the second cam track assembly 710 for supplying lubricant to the second cam track assembly 710. The manner in which lubricant is supplied to each cam track assembly will be described in further detail below.

[0090] Once each cam track assembly receives lubricant, the secondary distributor 600 is configured to distribute the lubricant to the first idler gear assembly 722. As will be described below, the first idler gear assembly 722 is meshedly engaged with the first drive gear assembly 720 such that lubrication of the first idler gear assembly 722 also distributes lubricant to lubricate the first drive gear assembly 720. In the same manner, lubricating the second idler gear assembly 726 also distributes lubricant to lubricate the second drive gear assembly 724. In any case, in Figure 7 In the embodiment of the present invention, the secondary distributor 600 distributes a predefined amount of lubricant to the first idler gear assembly 722 via the fluid line 732. The fluid line 732 can be connected to the first idler gear assembly 722. Figure 2 The third supplementary fluid pipeline 232 corresponds to. Figure 7 As shown in FIG. 1 , a fluid connector or coupling 728 can be coupled to the first idler gear assembly 722 for supplying lubricant to the first idler gear assembly 722. Once the lubricant is supplied to the first idler gear assembly 722, the secondary distributor 600 distributes a predefined amount of lubricant to the second idler gear assembly 724 via another fluid line 734. The fluid line 734 can be connected to the Figure 2 Another fluid connector or coupling 730 may be coupled to the second idler gear assembly 724 for supplying lubricant into the second idler gear assembly 724.

[0091] Once both idler gear assemblies are lubricated, the secondary distributor 600 can operatively distribute lubricant to the first roller assembly 760 via the fluid line 740. The fluid line 740 can be connected to the first roller assembly 760. Figure 2 The fluid connector or coupling 736 may be coupled to the first roller assembly 760 for delivering lubricant to the first roller assembly 760. Once the first roller assembly 760 is lubricated, the secondary distributor 600 is configured to supply lubricant to the second roller assembly 762 via another fluid conduit 742. The fluid conduit 742 may be coupled to the first roller assembly 760. Figure 2 The sixth supplementary fluid line 236 of the embodiment of the present invention corresponds to the sixth supplementary fluid line 236 of the embodiment of the present invention. A fluid connector or coupling 738 can be coupled to the second roller assembly 762 for delivering lubricant to the second roller assembly 762.

[0092] like Figure 7As shown in FIG, fluid connector 736 can be coupled to first roller assembly 760 via first plate 744. First plate 744 can be coupled to first roller assembly 760 via fastener 746. Similarly, fluid connector 738 can be coupled to second roller assembly 762 via second plate 748. Second plate 748 can be coupled to second roller assembly 762 via another fastener 750.

[0093] Although the secondary distributor 600 is described in an exemplary embodiment above in a sequential order in which it distributes lubricant to each position, in other embodiments, the secondary distributor 600 can be configured to supply lubricant to the positions in a different sequential order. For example, in one embodiment, the secondary distributor 600 can distribute lubricant to the first idler gear assembly and the second idler gear assembly or the first roller assembly and the second roller assembly before the cam track assembly. In other embodiments, the first or front cam track assembly, the first idler gear assembly, and the first roller assembly can be lubricated, and then the second or rear cam track assembly, the second idler gear assembly, and the second roller assembly can be lubricated. In other words, the order in which the various positions are lubricated can vary in different embodiments, and the present disclosure is not intended to limit the different positions to any particular order in which they receive lubrication.

[0094] exist Figure 8 and Fig. 9 In FIG. 1 , an exemplary embodiment of one or more cam track assemblies is shown. Figure 8 In the embodiment of the present invention, for example, a cam track assembly 800 is shown. The cam track assembly 800 may be similar to Figure 7 The first cam track assembly 708 and the second cam track assembly 710 are shown. The cam track assembly 800 includes a track 802 defined between an inner wall surface 806 and an outer wall surface 808. One or more rollers 804 are configured to be operably driven around the track 802. When the one or more rollers 804 are driven around the track 802, the rollers 804 can contact the inner wall surface 806 and the outer wall surface 808. The one or more rollers 804 can be in rolling or sliding contact with both surfaces 806, 808.

[0095] Each roller 804 is coupled to a cam arm (not shown) and a picking bar (not shown). The picking bar is directly coupled to the cam arm, and the cam arm is directly coupled to the roller 804. The geometry or shape of the cam track 802 helps to align and orient the picking bars relative to each other and the cotton plant during the harvesting operation. The cam arm can be oriented via the roller 804 and the cam track 800 so that the picking bar or spindle can pull or pick cotton from the plant during the picking operation. As done, the picking bar or spindle is moved to sweep across the doffer to remove cotton from the spindle. Each roller 804 moves around the track 802 to manipulate and orient the picking bar and spindle for removing cotton from the plant, thereby moving the spindle across the doffer to remove cotton from the spindle, and then moving the spindle under the water vapor column (not shown) to clean and wet the spindle for another picking operation.

[0096] During the lubrication process, the cam track assembly 800 receives lubricant into a chamber that allows the rollers 804 to help distribute the lubricant around the track 802. Fig. 9 The locations where lubricant is dispensed into the cam track assembly are shown in FIG. Fig. 9 , an embodiment of a first cam track 900 and a second cam track 902 is shown. A plurality of rollers 804 are shown in the first cam track, while the rollers are removed from the second cam track 902 to better illustrate the location where the lubricant enters. As shown, in one embodiment, a first opening 904 is shown in the first cam track 900, and a second opening 906 is shown in the second cam track 902. Each of the first opening 904 and the second opening 906 is located between an inner wall 908 and an outer wall 910 that defines the cam track. Each opening can be threaded to allow a connector (e.g., connectors 708, 710) to be threadedly coupled to the opening for dispensing lubricant into the cam track via the opening. In other embodiments, the connector can be coupled to the opening via a press fit, a mechanical fastener, welding, an adhesive, or in another known manner.

[0097] In some embodiments, the first opening 904 and the second opening 906 can be positioned anywhere in the cam track between the inner wall 908 and the outer wall 910. In several embodiments, the first opening 904 and the second opening 906 can be positioned offset from the center of the track and adjacent to the inner wall 908. In other embodiments, the first opening 904 and the second opening 906 can be positioned offset from the center of the track and adjacent to the outer wall 910. Fig. 9In the illustrated embodiment of the present invention, the first opening 904 and the second opening 906 are offset from the center of the cam tracks 900, 902, respectively, and are positioned against or in close proximity to the outer wall 910. In this embodiment, the roller 804 is designed to move around the cam track quickly enough to prevent or reduce the amount of lubricant leaking past the roller 804. In addition, as the lubricant is dispensed into the chamber formed by the cam tracks 900, 902, the roller 804 contacts the lubricant and increases the contact of the roller and the lubricant with the track. The lubricant can also flow along the outer wall 910, so that the roller 804 can evenly distribute the lubricant around the outer wall 910 around the periphery of the cam track. In addition, as the roller 804 moves around the cam tracks 900, 902, the contact between the roller 804 and the lubricant can also distribute the lubricant along the inner wall 908 and between the inner wall 908 and the outer wall 910 at locations along the tracks 900, 902.

[0098] As previously described, in some embodiments, the secondary distributor 600 is configured to distribute lubricant to the first cam track assembly 708 and the second cam track assembly 710 during a lubrication operation. As also described above, in other embodiments, the secondary distributor 600 can be configured to first distribute lubrication to the idler gear assembly or the roller assembly. In any case, reference is made to Figures 10 to 17 With reference to the embodiment shown in FIG. 1 , lubrication of the drive gear assembly and the idler gear assembly will now be described.

[0099] As described above, during the lubrication process of a conventional picking unit, the cotton harvester is reduced to a low idle speed and / or switched to a parking mode before starting the lubrication process. Therefore, the lubrication process cannot be performed while the cotton harvester is performing a harvesting operation. A timer is typically used to trigger when it is time to perform another lubrication process. Therefore, the operator may perform a lubrication process before a harvesting operation (e.g., in the morning), and then after a period of time (e.g., several hours of operation), the timer warns the operator to reduce the machine to a slow idle speed to perform another lubrication process. By interrupting the harvesting operation to re-lubricate the machine, this reduces productivity and takes more time to perform the harvesting operation.

[0100] In the present disclosure, the use of a primary distributor and a secondary distributor helps overcome the volume distribution problem in conventional lubrication systems. In addition, the lubrication system of the present disclosure also allows agricultural machines to continue to perform harvesting operations while performing a lubrication process. In conventional machines, operating at high speeds typically results in lubricant being thrown everywhere and not arriving at the desired location consistently. This is particularly true for drive gear assemblies that rotate at high speeds during harvesting operations. To overcome this problem, the lubrication system of the present disclosure is designed to distribute lubricant along different flow paths formed in an idle gear assembly so that the lubricant can flow to the drive gear assembly and lubricate the gears. The idle gear assembly allows lubrication at high operating speeds as well as during harvesting at low idle speeds. This flexibility allows for improved productivity.

[0101] exist Fig.10 , a drum and drive gear assembly 1000 is depicted in meshing engagement with an idler gear assembly 1002. The drum and drive gear assembly 1000 includes a central drive shaft 1004 defining a second rotational axis 1020. A drum drive gear 1012 is coupled to the drive shaft 1004 and is configured to be rotatably driven about the second rotational axis 1020 via a first idler gear 1008. The first idler gear 1008 is part of the idler gear assembly 1002, and the first idler gear 1008 is rotatably driven about a first rotational axis 1018. The first idler gear 1008 includes a plurality of teeth 1106 radially disposed about its circumference, and the drum drive gear 1012 includes a plurality of teeth radially disposed about its circumference. The gear teeth 1106 of the first idler gear 1008 are in meshing engagement with the gear teeth of the drum drive gear 1012. Power from an engine or generator on the agricultural machine can be used to rotatably drive the idler gear 1008, and thus drive the drum drive gear 1012. The roller drive gear 1012 is in turn operative to drive a roller assembly (not shown) that carries a picking bar (not shown).

[0102] Also like Fig.10 As shown in FIG. 1 , the drum and drive gear assembly 1000 includes a spindle drive gear 1014. The spindle drive gear 1014 is located below the drum drive gear 1012 along a second rotation axis 1020. The spindle drive gear 1014 is operable to drive a spindle (not shown) and is rotatably driven about the second rotation axis 1020 via a second idler gear 1010. The first idler gear 1008 and the second idler gear 1010 can be coupled to each other via one or more fasteners 1700 so that the pair of idler gears rotate together, as shown in FIG. Fig.17 In an alternative embodiment (e.g., Fig.26 ), the first idler gear 1008 and the second idler gear 1010 may not be coupled to each other, so that the two idler gears are free to rotate independently of each other. Fig.17, the second idler gear 1010 is part of the idler gear assembly 1002, and the second idler gear 1010 is rotatably driven around the first rotation axis 1018. The second idler gear 1010 includes a plurality of teeth 1108 radially arranged around its circumference, and the spindle drive gear 1014 includes a plurality of teeth radially arranged around its circumference. The gear teeth 1108 of the second idler gear 1010 mesh with the gear teeth of the spindle drive gear 1014.

[0103] In addition, the drum and drive gear assembly 1000 includes a doffer drive gear 1016. The doffer drive gear 1016 is operable to drive a doffer assembly (not shown) for removing cotton from the spindles during a harvesting operation. The doffer drive gear 1016 is located at a position below the spindle drive gear 1014 along the second rotational axis 1020. Fig.12 and Fig.14 As best shown in FIG. 1 , the brush fin 1212 can be coupled to the idler gear assembly 1002 (e.g., the second idler gear 1010) for engaging with and operably driving the doffer drive gear 1016. Fig.14 An embodiment of the Fig.24 As shown in another embodiment shown in , the doffer drive gear 1016 includes a plurality of gear teeth 1400 radially arranged around its outer circumference. The plurality of gear teeth 1400 of the doffer drive gear 1016 are configured to engage with the brush fins 1212, and the brush fins 1212 operably rotate the doffer drive gear 1016 about the second rotation axis 1020. In some embodiments, there are a plurality of brush fins 1212 operably coupled to the second idler gear 1010 at different radial positions along the underside of the second idler gear 1010. During operation, each of the plurality of brush fins 1212 can contact or engage with the gear teeth 1400 of the doffer drive gear 1016.

[0104] In one embodiment, the second idler gear of the front assembly (e.g., front assembly 704) and the second idler gear of the rear assembly (e.g., rear assembly 706) can be similarly sized, e.g., the diameters are the same. In another embodiment, the second idler gear of the front assembly can be sized differently than the second idler gear of the rear assembly. Fig.14 In, for example, the second idler gear 1010 can have a different diameter. For example, the front assembly can include a second idler gear having a larger diameter than the second idler gear on the rear assembly. In other embodiments, the rear assembly can have a second idler gear having a larger diameter than the second idler gear on the front assembly. Fig.24, the front assembly can include a second idler gear 2400 having a diameter approximately the same as the diameter of the second idler gear 1010 on the rear assembly. However, each second idler gear 1010, 2400 includes a brush fin 1212, as shown.

[0105] exist Fig.10 In the embodiment, the idler gear assembly 1002 includes a pin 1006. The pin 1006 is designed with a fluid passage for receiving a fluid from a fluid connector (e.g., Figure 7 The connectors 728, 730) receive lubricant. Figure 11 to Figure 13 , the pins 1006 are shown as first pins 1100 and second pins 1112 for the first or front idler gear assembly 722 and the second or rear idler gear assembly 726, respectively. The first pins 1100 and the second pins 1112 include inlets fluidly coupled to fluid passages that allow lubricant to flow along the inner diameter of the respective pins before the fluid passages intersect with fluid channels that distribute lubricant radially outward from the idler gear assembly. Specifically, the first pin 1100 includes an inner hole defined therethrough, such as Fig.13 The first inlet 1104 is formed in the first pin 1100 via the inlet channel 1302. The fluid connector (e.g., Figure 7 The fluid fitting 728 can be coupled to the first inlet 1104. In some embodiments, the first inlet 1104 can be threaded such that the fluid fitting is threadably coupled to the first inlet 1104. In other embodiments, the fluid fitting 728 can be coupled to the first inlet 1104 via a press fit, mechanical fasteners, welding, adhesives, or any other known means.

[0106] The first bolt 1102 passes through the inner hole 1300 of the first pin shaft 1100 and is used to couple a plurality of idle gears to each other in the idle gear assembly. The first bolt 1102 has an outer diameter that is smaller than the inner diameter of the inner hole 1300. Therefore, lubricant can be distributed from the fluid line 732 connected between the secondary distributor 600 and the fluid connector 728 to the first inlet 1104. When the lubricant is supplied to the first inlet 1104, the lubricant flows through the inlet channel 1302 and enters the fluid passage formed between the first pin shaft 1100 and the first bolt 1102. Fig.12 As shown in , lubricant can flow between the first bolt 1102 and the inner diameter of the first pin 1100 in a first flow direction indicated by arrow 1200 .

[0107] like Fig.12 and Fig.13As shown in the embodiment of FIG. 1 , the first pin 1100 includes a cross-drilled opening 1202 that intersects the fluid passage. As the lubricant flows down the fluid passage, the lubricant reaches the intersection of the opening 1202, allowing the lubricant to flow radially outward. More specifically, referring to FIG. Fig.12 , a first portion of the lubricant flows radially outward in a second flow direction 1204, and a second portion of the lubricant flows in a third flow direction 1206. The idler gear assembly may include one or more bearings, for example, a first bearing 1214 and a second bearing 1216. Alternatively, the first bearing 1214 and the second bearing 1216 may be a single bearing. Fig.17 As shown in FIG. 1 , the second bearing 1216 may be located below the first bearing 1214 and may be formed by a portion of the cam track assembly 1702 (eg, Figure 7 The first bearing 1214, the second bearing 1216, and the distributor plate 1110 may be supported by the first cam track assembly 708 or the second cam track assembly 710 of the embodiment of the present invention. The cam track assembly 1702 may form a surface that the second bearing 1216 contacts to form the interface 1704. Between the one or more fasteners 1700 and the cam track assembly 1702, the first bearing 1214, the second bearing 1216, and the distributor plate 1110 may be compressed together. In this way, the lubricant can flow through or around the bearings 1214, 1216 for lubrication.

[0108] When the lubricant flows along the second flow direction 1204, the lubricant can lubricate the first idler gear 1008 and the roller drive gear 1012. Fig.15 , the first idler gear 1008 includes an inner diameter 1514 and an outer diameter 1516. In addition, the first idler gear 1008 includes a plurality of fluid channels formed therein between the inner diameter 1514 and the outer diameter 1516. Fig.15 In the embodiment of the present invention, the fluid channel is formed on the bottom surface of the first idler gear 1008. In other embodiments, the fluid channel can be formed through different surfaces of the gear and / or through an opening in the gear. Fig.15 In the illustrated embodiment of , the plurality of fluid channels include a first fluid channel 1502 , a second fluid channel 1504 , a third fluid channel 1506 , a fourth fluid channel 1508 , a fifth fluid channel 1510 , and a sixth fluid channel 1512 .

[0109] In several embodiments, one or more of the plurality of fluid channels are configured to distribute lubricant to the spindle drive gear 1014 and the doffer drive gear 1016. In one embodiment, for example, two or more of the plurality of fluid channels distribute lubricant to the spindle drive gear 1014, and two or more of the plurality of fluid channels distribute lubricant to the doffer drive gear 1016. In another embodiment, three or more of the plurality of fluid channels distribute lubricant to the spindle drive gear 1014, and three or more of the plurality of fluid channels distribute lubricant to the doffer drive gear 1016.

[0110] In some embodiments, the first idler gear 1008 includes two or more fluid channels. In other embodiments, the first idler gear 1008 includes three or more fluid channels. In another embodiment, the first idler gear 1008 includes four or more fluid channels. In a different embodiment, the first idler gear 1008 includes five or more fluid channels. In yet another embodiment, the first idler gear 1008 includes six or more fluid channels. In other embodiments, the first idler gear 1008 is configured to distribute lubricant to the drum drive gear 1012, the spindle drive gear 1014, and / or the doffer drive gear 1016.

[0111] As the second portion of the lubricant flows along the third flow direction 1206, a portion of the lubricant flows along the fourth flow direction 1208 toward the brush fin 1212, and another portion of the lubricant flows along the fifth flow direction 1210 toward the outer diameter of the second idler gear 1010. The portion of the lubricant flowing along the fourth flow direction 1208 can lubricate the doffer drive gear 1016, while the portion of the lubricant flowing along the fifth flow direction 1210 can lubricate the drum drive gear 1012.

[0112] The idler gear assembly also includes Figures 11 to 17 The distributor plate 1110 shown in FIG. FIG. 16A to FIG. 16B In the embodiment, the distributor plate 1110 is formed as a body having a plurality of arm portions. For example, in the illustrated embodiment, the distributor plate 1110 includes a first arm portion 1606, a second arm portion 1608, and a third arm portion 1610. Each arm portion extends radially outward. In one embodiment, each arm portion is angularly offset from the other arm portions. FIG. 16A to FIG. 16B In an embodiment with four arm portions, for example, each arm portion may be angularly offset by up to 120° from the other arm portions. In an embodiment with four arm portions, for example, each arm portion may be angularly offset by up to 90° from two of the other three arm portions. In some embodiments, the arm portions may not be angularly offset by an equal distance from the other arm portions.

[0113] exist Fig.16A , the top surface 1600 of the distributor plate 1110 is shown. The top surface 1600 of the distributor plate 1110 includes an inner radius d1. One or more fluid cutouts 1604 or chambers are formed in the top surface 1600 of the distributor plate 1110 along a portion of the inner radius d1. Fig.16A In the illustrated embodiment of the present invention, there are three fluid cutouts 1604 formed in the top surface 1600. In another embodiment, there may be two or more fluid cutouts 1604. In other embodiments, there may be four or more fluid cutouts 1604. In some embodiments, there may be five or more fluid cutouts 1604. During the lubrication process, the lubricant flows along the second flow direction 1204 and fills each of the one or more fluid cutouts 1604 formed in the top surface 1600 of the distributor plate 1110. As the lubricant fills each of the one or more fluid cutouts 1604, the first idler gear 1008 is lubricated. Specifically, the lubricant can flow to the gear teeth 1106 of the first idler gear 1008, where the lubricant is distributed to the gear teeth of the drum drive gear 1012. Some of the lubricant may also be distributed to the second idler gear 1010 and / or the spindle drive gear 1014.

[0114] like Fig. 16B , the bottom surface 1602 of the distributor plate 1110 includes an inner radius d2. In one embodiment, the inner radius d1 of the top surface 1600 is the same as the inner radius d2 of the bottom surface 1602. In other embodiments, the inner radius d1 of the top surface 1600 is different from the inner radius d2 of the bottom surface 1602. As shown on the bottom surface 1602, each arm portion includes a fluid passage 1612 formed therein. Each fluid passage 1612 can be formed from the inner radius d2 of the bottom surface 1602 to the outermost portion of the arm portion (e.g., the outer diameter of the distributor plate 1110). In some embodiments, the outermost portion of each arm portion can be opened to form a collection area or chamber 1614. In some other embodiments, the fluid passage 1612 can have one or more openings or ports formed along the fluid passage 1612. In one embodiment, the fluid passage 1612 has a first width or diameter, and the chamber 1614 has a second width or diameter. The first width or diameter of fluid passage 1612 is less than the second width or diameter of chamber 1614. The outlet of each fluid passage 1612 may intersect chamber 1614 such that chamber 1614 has a width or diameter at the intersection with the outlet of the fluid passage that is less than its width or diameter at the outermost end of the arm portion. Fig. 16BIn the embodiment of the present invention, the chamber 1614 can form a Y-shaped or V-shaped chamber. When the lubricant flows through the fluid passage 1612 in each arm portion and the chamber 1614, the lubricant can flow in the fourth flow direction 1208 to lubricate the doffer drive gear 1016, or flow in the fifth flow direction 1210 to lubricate the second idler gear 1010 and the spindle drive gear 1014.

[0115] FIG. 25A to FIG. 25B Another embodiment of a distributor plate 2500 is shown in FIG. The distributor plate 2500 is similar to FIG. 16A to FIG. 16B Specifically, the distributor plate 2500 includes a top surface 2502 ( Fig.25A ) and bottom surface 2504 ( Fig.25B ). As shown, the top surface 2502 of the distributor plate 2500 includes a first inner radius r1, and the bottom surface 2504 includes a second inner radius r2. The distributor plate 2500 may also include one or more cutouts 2510 or cavities formed in the top surface 2502. The cutouts 2510 may facilitate the transfer of lubricant to lubricate the various idler gears, as described above. FIG. 25A to FIG. 25B In the embodiment, there are three fluid cutouts 2510. In other embodiments, there may be four or more fluid cutouts 2510. In some embodiments, there may be five or more fluid cutouts 2510. During the lubrication process and similar to Fig.12 In the embodiment of the present invention, the lubricant flows along the second flow direction 1204 and fills each of the one or more fluid cutouts 2510 formed in the top surface 2502 of the distributor plate 2500. When the lubricant fills each of the one or more fluid cutouts 2510, the first idle gear 1008 is lubricated. Specifically, the lubricant can flow to the gear teeth 1106 of the first idle gear 1008, where the lubricant is distributed to the gear teeth of the drum drive gear 1012. Some of the lubricant can also be distributed to the second idle gear 1010 and / or the spindle drive gear 1014.

[0116] exist FIG. 25A to FIG. 25B In the embodiment, the distributor plate 2500 is formed as a body having a plurality of arm portions similar to the arm portions of the distributor plate 1110. For example, in FIG. 25A to FIG. 25B In the illustrated embodiment of the present invention, the distributor plate 2500 includes a first arm portion 2504, a second arm portion 2506, and a third arm portion 2508. Each arm portion extends radially outward. In one embodiment, each arm portion is angularly offset from the other arm portions. FIG. 25A to FIG. 25BIn an embodiment with four arm portions, for example, each arm portion may be angularly offset by up to 120° from the other arm portions. In an embodiment with four arm portions, for example, each arm portion may be angularly offset by up to 90° from two of the other three arm portions. In some embodiments, the arm portions may not be angularly offset by an equal distance from the other arm portions.

[0117] refer to Fig.25B , the bottom surface 2504 of the distributor plate 2500 includes an inner radius r2. In one embodiment, the inner radius r1 of the top surface 2502 is the same as the inner radius r2 of the bottom surface 2504. In other embodiments, the inner radius r1 of the top surface 2502 is different from the inner radius r2 of the bottom surface 2504. As shown on the bottom surface 2504, each arm portion includes a fluid passage 2514 formed therein. Each fluid passage 2514 can be formed from the second inner radius r2 of the bottom surface 2504 to the outermost portion of the arm portion (e.g., the outer diameter of the distributor plate 2500). At the second inner radius r2, the fluid passage 2514 can form an inlet or inlet chamber 2512 for lubricant or other fluid to enter the fluid passage 2514. The lubricant or other fluid can flow from the inlet 2512 through the fluid passage 2514 to the outlet or outlet chamber 2516. Similar to the distributor plate 1110 described above, the outermost portion of each arm portion can be open to form an outlet or chamber 2516. In yet other embodiments, the fluid passage 2512 can have one or more openings or ports formed along the fluid passage 2514. In one embodiment, the fluid passage 2514 has a first width or diameter, and the inlet 2512 has a second width or diameter, and the outlet has a third width or diameter. The first width or diameter of the fluid passage 2514 can be smaller than the second width or diameter of the inlet 2512 and the third width or diameter of the outlet 2516, respectively. The outlet 2516 of each fluid passage 2514 can intersect with the fluid passage 2514 so that the outlet or outlet chamber 2516 has a width or diameter at the intersection with the fluid passage 2514 that is smaller than its width or diameter at the outermost end of the arm portion. The same is true with respect to the inlet 2512. Fig.25B In the embodiment of the present invention, the inlet and outlet can form a Y-shaped or V-shaped chamber. When the lubricant flows through the fluid passage 2514 and the outlet 2516 in each arm portion, for example, the lubricant can flow in the fourth flow direction 1208 to lubricate the doffer drive gear 1016, or flow in the fifth flow direction 1210 to lubricate the second idler gear 1010 and the spindle drive gear 1014. Fig.11, the structure of the second pin 1112 is similar to the first pin 1100. The second bolt 1114 can be disposed in the inner hole 1300 of the second pin 1112 so that a flow passage is formed between the inner hole and the second pin 1112 to facilitate lubrication of the second roller and the drive gear assembly.

[0118] Reference to the present disclosure Fig.26 , illustrates an alternative embodiment of an idler gear assembly 2600. In this embodiment, the idler gear assembly 2600 may be similar to Fig.10 The idler gear assembly 1002 of FIG. The idler gear assembly 2600 may include, for example, a first idler gear 2602 and a second idler gear 2604. A distributor plate 2608 may be disposed between the first idler gear and the second idler gear. The pin 2606 may allow the idler gear assembly 2600 to operably rotate about the axis of rotation. However, Fig.10 The idler gear assembly 1002, in contrast, provides Fig.26 The idle gear assembly 2600 is configured such that the first idle gear 2602 and the second idle gear 2604 are not coupled to each other by fasteners. In this embodiment, the first idle gear 2602 and the second idle gear 2604 can rotate independently of each other. In some embodiments, the first idle gear 2602 can be larger than the first idle gear 2602. Fig.10 The first idle gear 1008 of the idle gear assembly 1002 in the embodiment is larger (e.g., has a larger diameter). In several embodiments, the first idle gear 2602 and the second idle gear 2604 may include diameters of different sizes. For example, for some embodiments, the first idle gear 2602 may have at least a smaller diameter, and in other embodiments, the first idle gear 2602 may have a larger diameter. In other embodiments, the first idle gear 2602 may have two or more different diameters. Similarly, the second idle gear 2604 may have two or more different diameters. In addition, the distributor plate 2608 may include different sizes based on the diameters of the corresponding idle gears 2602, 2604. In any case, the first idle gear 2602 may include a plurality of gear teeth 2610 spaced apart at its outer diameter. In addition, the second idle gear 2604 may include a plurality of gear teeth 2612 radially spaced apart from each other around the outer diameter of the second idle gear 2604.

[0119] exist Fig. 27 2702. The idler gear assembly 2600 is shown in greater detail in FIG. Here, the pin 2606 includes an inner bore 2700 having a first opening 2702 formed therein. A second cross-drilled opening 2704 is also formed in the pin 2606 at a location longitudinally offset from the first opening 2702. The idler gear assembly 2600 may include one or more bearings. Fig. 27In FIG. 2 , a first bearing 2706 and a second bearing 2708 are shown. The first bearing and the second bearing may be similar to those described above and Fig.12 12. The first bearing 1214 and the second bearing 1216 are shown in FIG. In some embodiments, the first bearing 2706 and the second bearing 2708 can be a single bearing.

[0120] The distributor plate 2608 can be at least partially disposed between the first bearing 2706 and the second bearing 2708 of the idler gear assembly 2600. The spacer 2710 is also located between the first bearing and the second bearing. In addition, the spacer 2710 can be radially spaced between the pin 2606 and the distributor plate 2608.

[0121] exist Fig.28 27. Here, the spacer 2710 may include an inner diameter and an outer diameter. Fig.28 As shown in , the bottom surface of the spacer 2710 may include one or more slots 2800. In some embodiments, there may be multiple slots 2800. In other embodiments, there may be two or more slots 2800. Fig.28 , the spacer 2710 includes four slots 2800. Each slot can be radial in shape. Other geometric shapes of the slots 2800 are possible, including square, rectangular, triangular or polygonal. The slots 2800 can allow lubricant to flow therethrough, as will be described below.

[0122] exist Fig.29 2900. Here, the pin 2606 may include a generally cylindrical body 2900. At one portion of the body 2900, the pin 2606 may include a reduced radial portion 2906. As shown, the first opening 2702 may be formed in the reduced radial portion 2906. At another portion of the body 2900, the pin 2606 may include a second cross-drilled opening 2704. The second opening 2704 may include a pair of openings 2704 radially offset from each other. In one embodiment, the pair of second openings 2704 may be radially offset by at least 90°. In another embodiment, the pair of second openings 2704 may be radially offset by at least 120°. In another embodiment, the pair of second openings 2704 may be radially offset by at least 150°. In yet another embodiment, the pair of second openings 2704 may be radially offset by approximately 180°. In yet other embodiments, there may be more than two second openings 2704 radially offset from each other.

[0123] The second opening 2704 can be formed in a groove 2908 in the body 2900. The second opening 2704 can be fluidly coupled to the first opening 2702 via the hole 2700. In other words, fluid can flow between the first opening 2702 and the second opening 2704 through the hole 2700. The pin 2606 can also include a shoulder of a flange portion 2902 that protrudes radially outward from the body 2900. The shoulder or flange portion 2902 can form a surface 2904 that is Fig. 27 In the configuration of the connection, the first bearing 2706 can contact the surface 2904. Similar to Fig.17 In an embodiment, the second bearing 2708 can contact the cam track body (e.g., the cam track body 1702) and form a Fig.17 In this manner, the first bearing 2706, the second bearing 2708, the distributor plate 2608 and the spacer 2710 are disposed between the shoulder portion 2902 of the pin 2606 and the cam track body.

[0124] refer to Fig. 27 , lubricant can be distributed from a fluid line (e.g., fluid line 732) coupled between the secondary distributor 600 and the fluid connector 728 into the first opening 2702 of the pin 2606. When the lubricant is supplied to the first opening 2702, the lubricant flows through the first opening 2702 in a first flow direction 2714 and enters a fluid passage formed between the pin 2606 and the bolt (e.g., bolts 1102, 1114). Fig. 27 As shown in FIG. 26 , the lubricant is able to flow along the fluid passage defined in the pin shaft 2606 in a second flow direction indicated by arrow 2716 .

[0125] As described above, and as Fig. 27 As shown in FIG. 2 , the pin 2606 includes a second opening 2704 in the form of a cross-drilled opening that intersects the fluid passage. As the lubricant flows down the fluid passage in the second flow direction 2716, the lubricant reaches the intersection of the second opening 2704, allowing the lubricant to flow radially outward. More specifically, referring to FIG. Fig. 27 , a first portion of the lubricant flows radially outward in a third flow direction 2718, and a second portion of the lubricant flows in a seventh flow direction 1726. As previously described, the idler gear assembly 2600 can include one or more bearings, for example, a first bearing 2706 and a second bearing 2708.

[0126] When the lubricant flows along the third flow direction 2718, the lubricant can lubricate the first idler gear 2602 and the roller drive gear (not shown). The first idler gear 2602 can be similar in structure to the first idler gear 1008, having similar fluid channels, such as Fig.15 In several embodiments, one or more of the plurality of fluid passages formed in the first idler gear 2602 is configured to distribute lubricant to the spindle drive gear (e.g., spindle drive gear 1014) and the doffer drive gear (e.g., doffer drive gear 1016).

[0127] As the second portion of the lubricant flows along the third flow direction 2718, a portion of the lubricant flows along the fourth flow direction 2720 toward the brush fin 2712, and another portion of the lubricant flows along the fifth flow direction 2722 to the outer diameter of the second idler gear 2604. The portion of the lubricant flowing along the fourth flow direction 2720 can lubricate the doffer drive gear, while the portion of the lubricant flowing along the fifth flow direction 2722 can lubricate the drum drive gear. Fig. 27 The brush fin 2712 may be similar in structure and function to Fig.12 Brush fin 1212.

[0128] like Fig. 27 As best shown in FIG. 2 , first idler gear 2602 may include a plurality of fluid channels that allow lubricant to flow along a sixth flow direction indicated by arrow 2722. The flow of lubricant along sixth flow direction 2722 is similar to the flow of lubricant along Fig.12 Flow in the flow direction 1204.

[0129] exist Fig.30 , lubricant flowing along the third flow direction 2718 and the seventh flow direction 2726 through the second opening 2704 in the pin 2606 and the slot 2800 in the spacer 2710 is shown. The lubricant can then flow through one or more fluid passages or channels 3112 formed in the distributor plate 2608. This will be described in further detail below. Fig.30 As shown in , a gap 3000 is formed between the interface of the spacer 2710 and the distributor plate 2608. The gap 3000 is formed as a maze or circuitous path with a reduced cross-section compared to the size of the second opening 2704 and the slot 2800. In this way, the size difference between the second opening 2704 and the slot 2800 relative to the gap 3000 allows all or most of the lubricant to flow radially outward along the flow directions 2718, 2726. In some embodiments, a small portion of the lubricant can flow into the gap 3000. In one embodiment, the lubricant is encouraged not to flow through the gap 3000. In other embodiments, most of the lubricant flows radially outward without entering the gap 3000. In several embodiments, the size of the gap 3000 is restrictive so that the lubricant does not flow into the gap 3000.

[0130] exist FIG. 31A to FIG. 31B Another embodiment of a distributor plate 2608 according to the present disclosure is illustrated in FIG. The distributor plate 2608 is similar to FIG. 16A to FIG. 16B and FIG. 25A to FIG. 25B Specifically, the distributor plate 2608 includes a top surface 3100 ( Fig.31A ) and bottom surface 3102 ( Fig.31B As shown, the top surface 3100 of the distributor plate 2608 includes a first inner radius R1, and the bottom surface 3102 includes a second inner radius R2. At the first inner radius R1, a latch feature is formed to engage or interface with the spacer 2710, as described above.

[0131] and FIG. 25A to FIG. 25B Unlike the distributor plate 2500 of the present invention, the distributor plate 2608 does not include one or more cutouts or chambers formed in the top surface 3100. As described above, during lubrication, the lubricant flows in the third flow direction 2718 and along the bottom surface 3102 of the distributor plate 2608. The lubricant is able to flow to the roots of the gear teeth 2610 of the first idler gear 2602, where the lubricant is distributed to the gear teeth of the drum drive gear. Some of the lubricant may also be distributed to the second idler gear 2604 and / or the spindle drive gear.

[0132] exist FIG. 31A to FIG. 31B In the embodiment, the distributor plate 2608 is formed as a body having multiple arm portions similar to the arm portions of the other distributor plates 2500, 1110 described herein. For example, in FIG. 31A to FIG. 31B In the illustrated embodiment of the distributor plate 2608, the distributor plate 2608 includes a first arm portion 3104, a second arm portion 3106, and a third arm portion 3108. Each arm portion extends radially outward. In one embodiment, each arm portion is angularly offset from the other arm portions. FIG. 31A to FIG. 31B In an embodiment with four arm portions, for example, each arm portion may be angularly offset by up to 120° from the other arm portions. In an embodiment with four arm portions, for example, each arm portion may be angularly offset by up to 90° from two of the other three arm portions. In some embodiments, the arm portions may not be angularly offset by an equal distance from the other arm portions.

[0133] refer to Fig.31B, the bottom surface 3102 of the distributor plate 2608 includes an inner radius R2. In one embodiment, the inner radius R1 of the top surface 3100 is the same as the inner radius R2 of the bottom surface 3102. In other embodiments, the inner radius R1 of the top surface 3100 is different from the inner radius R2 of the bottom surface 3102. As shown on the bottom surface 3102, each arm portion includes a fluid passage 3112 formed therein. Each fluid passage 3112 can be formed from the second inner radius R2 of the bottom surface 3102 to the outermost portion of the arm portion (e.g., the outer diameter of the distributor plate 2608). At the second inner radius R2, the fluid passage 3112 can form an inlet 3110 for lubricant or other fluid to enter the fluid passage 3112. Lubricant or other fluid can flow from the inlet 3110 through the fluid passage 3112 to the outlet 3114. Similar to the distributor plate described above, the outermost portion of each arm portion can be opened to form an outlet 3114. In yet other embodiments, the fluid pathway 3112 can have one or more openings or ports formed along the fluid pathway 3112. In one embodiment, the fluid pathway 3112 has a first width or diameter, and the inlet 3110 has a second width or diameter, and the outlet 3114 has a third width or diameter. The first width or diameter of the fluid pathway 3112 can be smaller than the second width or diameter of the inlet 3110 and the third width or diameter of the outlet 3114, respectively. In one embodiment, the second width or diameter can be larger than the third width or diameter. In another embodiment, the second width or diameter can be smaller than the third width or diameter. In yet another embodiment, the second width or diameter can be approximately the same as the third width or diameter. The outlet 3114 of each fluid pathway 3112 can intersect with the fluid pathway 3112 such that the outlet 3114 has a width or diameter at the intersection with the fluid pathway 3112 that is smaller than its width or diameter at the outermost end of the arm portion. The same is true with respect to the inlet 3110. In Fig.31B In the embodiment of the present invention, the inlet 3110 and the outlet 3114 can form a Y-shaped or V-shaped chamber. When the lubricant flows through the fluid passage 3112 and the outlet 3114 in each arm portion, for example, the lubricant can flow in the fourth flow direction 2720 to lubricate the doffer drive gear, or flow in the sixth flow direction 2724 to lubricate the second idler gear 2604 and the spindle drive gear.

[0134] The lubrication system 200 of the present disclosure also supplies lubricant to the roller assembly. Fig.18, a roller assembly 1800 similar to the first roller assembly 760 and the second roller assembly 762 is shown. The roller assembly 1800 includes a shaft 1802 defining an inner bore 1804. One end of the bore 1804 formed in the shaft 1802 defines an inlet opening 1806 for receiving lubricant. A fluid connector (e.g., the first roller connector 736 or the second roller connector 738) can be used to distribute lubricant into the bore 1804 of the shaft 1802. When the lubricant is supplied to the bore 1804, the lubricant is Fig.18 Once the lubricant flows through the shaft 1802, the lubricant then fills the chamber formed on the rear portion 1814 of the star-shaped member 1810. The star-shaped member 1810 may be similar to Figure 7 The first star member 756 and the second star member 758 are provided. The star member 1810 includes a base portion 1812 coupled to the shaft 1802 and one or more arm portions 1818 extending radially outward relative to the base portion 1812. The nut 1816 is coupled to the shaft 1802 at the end proximate the inlet opening 1806. The nut 1816 can be adjusted to secure the drum assembly 1800 or release a portion thereof from the drum assembly 1800.

[0135] The rear portion 1814 of the star-shaped member 1810 is formed as Fig.19 1900. When the chamber 1900 is filled with lubricant, the lubricant can be distributed to the individual picking rods. More specifically, referring to Fig.19 In the embodiment of the present invention, when the lubricant fills the chamber 1900, the lubricant can flow through one or more fluid inlets 1904 and out of one or more fluid outlets 1902 for lubricating each picking bar. When the star-shaped member 1810 rotates about the rotation axis formed through the shaft 1802, the centrifugal force can push or induce the lubricant to flow radially outward toward and through one or more of the multiple fluid inlets 1904.

[0136] exist Fig.19 In the illustrated embodiment, each fluid inlet 1904 is fluidly coupled to a corresponding fluid outlet 1902. More specifically, each fluid inlet 1904 and fluid outlet 1902 are fluidly coupled to a corresponding picking bar (not shown) that is coupled to the drum assembly 1800. In the illustrated embodiment, only centrifugal force is used to induce lubricant to flow through each fluid inlet 1904 and fluid outlet 1902 for lubricating each picking bar.

[0137] In an alternative embodiment, the chamber of the star-shaped member 1810 may include a plurality of channels formed on the rear portion 1814 thereof for restricting the flow of lubricant from the hole 1804 to each fluid inlet 1904. The plurality of channels may be filled with lubricant so that the chamber 1900 is not as large as in the embodiment of the present invention. Fig.19 In this alternative embodiment, the distribution of lubricant to each picking bar does not depend solely on centrifugal force. In addition, the plurality of channels may be grooves formed in the rear side of the star-shaped member 1810. Alternatively, a fluid channel, opening or passage may be formed to fluidly couple the hole 1804 to each of the plurality of fluid inlets 1904 and fluid outlets 1902 for lubricating each picking bar.

[0138] like Fig. 20 1806, the roller assembly 1800 may include one or more seals coupled to the shaft 1802 at or adjacent to the inlet opening 1806. As shown, the first seal 2000 is coupled to an internal groove formed in the bore 1804 of the shaft 1802 that is closest to the inlet opening 1806. The first seal 2000 may be a dust seal or the like that is configured to reduce or prevent dust and other contaminants from entering the inner bore 1804 of the shaft 1802. The second seal 2002 may be coupled to an internal groove or location in the inner bore 1804 that is located below the first seal 2000. The second seal 2002 may be configured to prevent lubricant from entering the inner bore 1804 of the shaft 1802. Fig.18 1808 in the opposite direction of the flow direction 1808 in the shaft 1802. In other words, the second seal 2002 may include a lip or other feature that prevents the lubricant from flowing back toward the inlet opening 1806. The third seal 2004 may be disposed in an internal groove or position in the inner bore 1804 of the shaft 1802. The third seal 2004 may be located below the first seal 2000 and the second seal 2002. The third seal 2004 may be a wear-resistant seal or ring. The seal may allow pressure to build up in the inner bore 1804 of the shaft 1802 to induce the lubricant to flow through the shaft 1802 in the flow direction 1808 toward the star member 1810.

[0139] In order to distribute the lubricant into the inlet opening 1806 of the shaft 1802, a fluid connector or a drum fluid connector can be connected to the inlet opening 1806. Fig.21 In the embodiment of the present invention, a fluid connector 2102 having a fly pin 2108 can be disposed within the inlet opening 1806 for distributing lubricant into the shaft 1802. Fig.21In addition to the fluid connector in FIG. 21, other types and styles of connectors may be used, and no particular type or style of connector is intended to limit the scope of the present disclosure. In some embodiments, the connector can be threadedly coupled to the shaft 1802 via external threads on the pin 2108 and internal threads in the inner hole 1804 of the shaft 1802. Another embodiment of a fluid connector that can be used is as shown in FIG. Fig.23 Compression style connector 2300 may include a rod portion 2304 disposed within the inner bore 1804 of shaft 1802. Connector 2300 may include a connector portion 2302 coupled to fluid line 2100 via fastener 2306. Fig.21 In FIG. 2 , fasteners 2104 may be used to couple fluid connector 2102 to fixing plate 2106. Fixing plate 2106 may be similar to Figure 7 The first plate 744 and the second plate 748 in the embodiment. The fixing plate 2106 can be connected to the frame member 2200 of the picking unit. Fig. 22 In the embodiment of the present invention, for example, the frame member 2200 can include a mounting plate 2202 coupled thereto. The mounting plate 2202 can include an opening 2204 through which the post 2118 is positioned. The first fastener 2110 and the second fastener 2116 can couple the post 2118 to the mounting plate 2202.

[0140] Lubricant may be supplied to the inlet opening 1806 in the shaft 1802 via the fluid line 2100. The fluid line 2100 may be connected to the Figure 7 21. The fluid lines 2100 correspond to the fluid lines 740, 742 in the figure. The fluid line 2100 can be, for example, a rubber or plastic hose or a metal line. In any case, the fluid line 2100 can be fluidly coupled to the fluid connector 2102. In some embodiments, the fluid line 2100 can have a long length and therefore it is coupled to the fixing plate 2106. The fixing plate 2106 includes an opening through which the wire post 2114 of the line attachment 2112 is coupled. The line attachment 2112 can securely position and orient the fluid line 2100 so that the fluid line 2100 does not form kinks or other restrictions.

[0141] During operation, the roller assembly 1800 rotates about an axis of rotation formed through the shaft 1802. However, the pin 2108 does not rotate, and thus Fig. 20 One or more seals shown in are supported in shaft 1802.

[0142] One or more pressure sensors may be incorporated in a lubrication system at different locations along various fluid lines. Each pressure sensor may be configured to sense a blockage or other flow restriction in a fluid line. In this manner, one or more pressure sensors form a diagnostic system for a lubrication system. Each sensor may communicate with a controller or control unit and may alert an operator of an agricultural machine when there is a flow blockage or restriction in a line. The sensor may sense the pressure in the fluid line and compare the pressure to a threshold. If the pressure exceeds or otherwise does not meet the threshold, the sensor may transmit a signal to the controller or control unit indicating a possible flow blockage or restriction and a possible location of the blockage based on where the sensor is coupled to the fluid line.

[0143] Although the present disclosure has been described with respect to at least one embodiment, the present disclosure can be further modified within the spirit and scope of the present disclosure. Therefore, the present application is intended to cover any variation, use or modification of the present disclosure using its general principles. In addition, the present application is intended to cover such deviations from the present disclosure within known or customary practices in the field to which the present disclosure belongs, and the deviations are attributed to the limitations of the appended claims.

Claims

1. A lubrication system (200, 3200) for lubricating a plurality of picking units connected to an agricultural machine, each of the plurality of picking units comprising a cam track assembly (708, 710), an idler gear assembly (722, 726), a roller and drive gear assembly (1000), and a roller assembly (760, 762, 1800), the lubrication system comprising: a supply source (206) of lubricant; a pump (204) fluidly coupled to the supply source (206), the pump (204) being configured to supply the lubricant to a supply line (244); a primary distributor (210) fluidly coupled to the pump via the supply line (244), the primary distributor (210) comprising a plurality of outlets configured to be fluidly coupled to each of the plurality of picking units; a plurality of secondary distributors (600), each secondary distributor being fluidly coupled to one of the plurality of outlets of the primary distributor (210), each of the plurality of secondary distributors (600) being fluidly coupled to one of the plurality of picking units; The primary distributor (210) is configured to distribute an equal amount of lubricant to each of the plurality of secondary distributors (600) in a given cycle.

2. The lubrication system according to claim 1, wherein: Each secondary distributor (600) is configured to supply a first amount of lubricant to the cam track assembly (708, 710), a second amount of lubricant to the idler gear assembly (722, 726), and a third amount of lubricant to the roller assembly (760, 762).

3. The lubrication system according to claim 2, wherein: The secondary distributor (600) supplies lubricant to the cam track assemblies (708, 710), the idler gear assemblies (722, 726), and the roller assemblies (760, 762) in the same order in each given cycle.

4. The lubrication system according to claim 1, wherein: The cam track assembly (708, 710) of each of the plurality of picking units includes a cam track formed between an inner wall (806) and an outer wall (808), the cam track defining a path around which a plurality of rollers (804) move; An opening (904, 906) is formed in the cam track at a position offset from a centerline of the cam track and adjacent to the outer wall (808), and the opening (904, 906) is fluidly connected to an outlet port located at a corresponding secondary distributor (600).

5. The lubrication system of claim 4, further comprising a fluid line (716, 718) fluidly coupled between the outlet port at the corresponding secondary distributor (600) and the cam track assembly (708, 710), the fluid line including a fitting coupled to the opening (904, 906) formed in the cam track; in, Lubricant is supplied from the corresponding secondary distributor (600) to the cam track assemblies (708, 710) via the fluid lines.

6. The lubrication system according to claim 1, wherein: The idler gear assembly comprises: a first idler gear (1008), the first idler gear (1008) comprising a plurality of gear teeth (1106), the first idler gear (1008) being configured to engage with a drum drive gear (1012) of the drum and drive gear assembly (1000); a second idler gear (1010), the second idler gear (1010) comprising a plurality of gear teeth (1108), the second idler gear (1010) being configured to engage with a spindle drive gear (1014) of the drum and drive gear assembly (1000); a brush fin (1212) coupled to the second idler gear (1010), the brush fin (1212) being configured to engage with a doffer drive gear (1016) of the drum and drive gear assembly (1000); A pin shaft (1100, 1112, 2606) defines a rotation axis, the first idler gear (1008) and the second idler gear (1010) are driven to be rotatable around the rotation axis, the pin shaft (1100, 1112, 2606) includes an inner hole and an inlet opening (1104, 2702) connected to the inner hole, and the inlet opening (1104, 2702) is configured to receive lubricant from the corresponding secondary distributor (600).

7. The lubrication system according to claim 6, wherein: The pin (1100, 1112, 2606) includes a second opening (1202, 2704) and a third opening (1202, 2704) defined in the pin, the second opening and the third opening (1202, 2704) being fluidly coupled to the inlet opening (1104, 2702) via the inner bore, wherein lubricant supplied to the inlet opening (1104, 2702) flows through the inner bore and out of the inner bore through the second opening and the third opening (1202, 2704).

8. The lubrication system according to claim 7, wherein: The first idler gear (1008) includes one or more fluid channels (1502-1512) formed in the first idler gear, and the one or more fluid channels (1502-1512) are fluidly coupled to the second opening or the third opening (1202, 2704) defined in the pin shaft (1100, 1112, 2606).

9. The lubrication system of claim 7, further comprising a distributor plate (1110, 2500) positioned between the first idler gear (1008) and the second idler gear (1010), the distributor plate (1110, 2500) comprising a top surface (1600) and a bottom surface (1602).

10. The lubrication system according to claim 9, wherein: One or more fluid cutouts (1604) are formed in the top surface (1600) of the distributor plate (1110, 2500), and the one or more fluid cutouts (1604) are fluidly connected to one of the second opening and the third opening (1202, 2704) in the pin shaft (1100, 1112, 2606).

11. The lubrication system according to claim 10, wherein: One or more fluid passages (1612) are formed in the bottom surface (1602) of the distributor plate (1110, 2500), the one or more fluid passages (1612) being fluidly coupled to the other of the second opening and the third opening (1202, 2704).

12. The lubrication system according to claim 10, wherein: A plurality of flow paths are formed between the inlet opening (1104, 2702) and the drum and drive gear assembly (1000), the plurality of flow paths comprising: a first flow path (2714) defined between the inlet opening (1104, 2702) and the inner bore in the pin (1100, 1112, 2606); a second flow path (1200, 2716) defined in the inner bore and located between the first flow path and the second opening; a third flow path (2710) defined in the inner bore and located between the first flow path (2714) and the third opening (1202, 2704); a fourth flow path (1204) defined between the second opening or the third opening (1202, 2704) and one or more fluid passages (1502-1512) formed in the first idler gear (1008); a fifth flow path (1206) defined between the second opening or the third opening (1202, 2704) and at least one of the one or more fluid cutouts (1604) formed in the top surface (1600) of the distributor plate (1110, 2500); a sixth flow path (1210, 2726) defined between the second opening or the third opening (1202, 2704) and at least one of the one or more fluid passages (1612) formed in the bottom surface (1602) of the distributor plate (1110, 2500); and A seventh flow path (2720) is fluidly coupled to the fourth flow path, one of the fifth flow path and the sixth flow path and the brush fin (2712).

13. The lubrication system of claim 1, wherein: The roller assembly (760, 762, 1800) includes: a shaft (1802) having a defined inner bore (1804), the inner bore (1804) including an inlet opening (1806) at one end of the inner bore, the inlet opening (1806) being configured to receive lubricant from the corresponding secondary distributor (600); and a star-shaped member (1810) coupled to the shaft (1802), the star-shaped member (1810) defining a chamber (1900) for receiving lubricant flowing through the inner bore (1804); Therein, the star-shaped member (1810) includes a plurality of fluid outlets (1902), the plurality of fluid outlets (1902) being formed in the chamber (1900) and being fluidically coupled to the inner bore (1804) via the chamber (1900).

14. The lubrication system according to claim 13, wherein: Each of the plurality of fluid outlets (1902) formed in the chamber (1900) is fluidly coupled to a separate picking bar coupled to the drum assembly (760, 762, 1800).

15. The lubrication system of claim 13, further comprising a fluid line (2100) fluidly coupled between the corresponding secondary distributor (600) and the inlet opening (1806) in the shaft (1802), the fluid line (2100) comprising a fitting (2102, 2300) coupled to the inlet opening (1806) formed in the shaft (1802); in, Lubricant is supplied to the shaft (1802) by the corresponding secondary distributor (600) via the fluid line.

Images