Cotton picker with easily serviceable cotton picking head assembly

Abstract

The present application relates to cotton picker technical field, specifically to a kind of cotton picker of cotton picking head subassembly easy to maintain, with rack, the rack is equipped with cotton picking head subassembly, the cotton picking head subassembly includes cotton picking head, fixed frame, multiple cotton picking heads are equipped on rack by fixed frame, the shell of cotton picking head is provided with cotton stripping disc assembly and reduction gearbox, the reduction gearbox has box, the box is equipped with spline horizontal shaft and spline vertical shaft, spline horizontal shaft and spline vertical shaft are connected by bevel gear transmission, spline vertical shaft is connected with cotton stripping disc assembly, the spline horizontal shaft of reduction gearbox of adjacent two cotton picking heads is connected by transmission rod, fixed frame is equipped with guide rod, cotton picking head is equipped on fixed frame by fixed bolt, the bolt sleeve of fixed bolt is equipped with guide skirt, guide skirt is equipped on guide rod.In the present application, the connection mode of the reduction gearbox of the cotton picker is changed, and a forward and reverse cotton picking head structure is used, so that the cotton picker has stronger applicability and is more convenient to install and maintain.

Description

Technical Field

[0001] This invention relates to the field of cotton harvester manufacturing technology, and in particular to a cotton harvester with a cotton harvesting head assembly that is easy to maintain. Background Technology

[0002] Cotton cultivation is widespread in my country. Previously, cotton harvesting relied primarily on manual labor, which was labor-intensive and inefficient. With the continuous improvement of agricultural mechanization in my country, large-scale mechanized cotton harvesting has become an inevitable trend in the cotton industry, leading to the emergence of cotton harvesters on the market. Using cotton harvesters can effectively increase harvesting speed and generate higher incomes for cotton harvesters. However, the harvesting effect, cleaning rate, and cotton removal efficiency of existing mechanized cotton harvesters in my country are far from ideal. The main reason for this is the unreasonable design of the harvester head. The core component affecting the harvesting effect, cleaning rate, and cotton removal efficiency is the harvesting head itself, which typically consists of multiple harvesting heads driven by a single hydraulic cylinder, with adjacent harvesting heads connected by a reduction gearbox.

[0003] The transmission between the cotton harvester head reduction gearboxes is achieved by connecting the horizontal shaft of the adjacent reduction gearboxes through a linkage shaft. However, due to the limitation of the distance between the harvester heads, the transmission rods need to be of various specifications, and the debugging during installation is also very troublesome.

[0004] The cotton harvester deceleration gearbox is used on the cotton harvester head. The spacing between the cotton harvester heads is designed according to the cotton planting density. After installation, the large inspection door on the side of the cotton harvester head cannot be opened. When a problem occurs and the cotton harvester head needs maintenance, due to space constraints, the connecting rod must be removed to move the cotton harvester head to meet the required opening distance. This disassembly and reassembly is also very troublesome each time. Furthermore, the current design of the cotton harvester head is based on the 90 cm spacing of cotton rows in the United States, while the standard cotton row spacing in some regions of my country is only 76 cm. Figure 1 As shown, the two arms of the existing cotton harvesting head assembly are set apart to the sides, but this kind of large-spacing harvesting head cannot harvest when the row spacing is less than 76 cm, and its applicability is poor when used in my country. Summary of the Invention

[0005] To address the aforementioned problems, the purpose of this invention is to provide a cotton harvester with a cotton harvesting head assembly that is highly adaptable, easy to install and maintain, and convenient to maintain.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a cotton harvester with an easy-to-maintain cotton harvesting head assembly, having a frame, on which a cotton harvesting head assembly is mounted, the cotton harvesting head assembly including a cotton harvesting head and a fixing frame, multiple cotton harvesting heads being mounted on the frame via the fixing frame, and a cotton stripping disc assembly and a reduction gearbox being provided in the housing of the cotton harvesting head.

[0007] The gearbox has a housing, in which a splined horizontal shaft and a splined vertical shaft are provided. The splined horizontal shaft and the splined vertical shaft are connected by bevel gear transmission. The splined vertical shaft is connected to the cotton removal disc assembly. The splined horizontal shafts of the gearboxes of two adjacent cotton picking heads are connected by transmission rods.

[0008] The transmission rod has a connecting pipe and a connecting rod. The outer end of the connecting pipe is fixedly connected to a first cross-shaped connector, and the outer end of the connecting rod is fixedly connected to a second cross-shaped connector. The inner end of the connecting rod is inserted into the connecting pipe. An anti-rotation structure is provided between the connecting pipe and the first cross-shaped connector, and an anti-rotation structure is also provided between the connecting pipe and the connecting rod.

[0009] The cotton picking head is equipped with a row divider, which includes a first row divider arm and a second row divider arm, with the first row divider arm being vertically arranged on the cotton picking head.

[0010] The fixed frame is equipped with a guide rod, and the cotton picking head is mounted on the fixed frame by a fixing bolt. The bolt sleeve of the fixing bolt is equipped with a guide skirt, and the guide skirt is mounted on the guide rod.

[0011] In the above technical solution, the anti-rotation structure between the connecting pipe and the first cross joint is provided by an inner spline and an outer spline on the inner side of the first outer sleeve and the outer side of the connecting pipe. The anti-rotation structure between the connecting pipe and the connecting rod is provided by the inner hole of the connecting pipe being an internal hexagonal hole and the cross section of the connecting rod being hexagonal.

[0012] In the above technical solution, a stop structure is provided at the connection between the first cross-shaped connector and the first outer sleeve, and a stop structure is provided at the connection between the first outer sleeve and the connecting rod.

[0013] In the above technical solution, the end of the spline horizontal shaft is provided with a limiting groove, a flange is fitted on the shaft end of the spline horizontal shaft, a ball hole is provided on the flange, a ball is provided in the ball hole, the lower part of the ball is provided in the limiting groove, and a retaining ring is fitted on the flange at the outer periphery of the ball hole.

[0014] In the above technical solution, the fixed frame is provided with three cotton picking heads, two of which are arranged in a mirror image, and the first dividing arms of the two cotton picking heads abut against each other.

[0015] In the above technical solution, the cotton picking head shell is provided with a cotton inlet at the position corresponding to the row divider, and the side of the cotton picking head is provided with an inspection door.

[0016] In the above technical solution, the fixing frame includes a main support and a side support, the cotton picking head is mounted on the main support, and the side support is hinged to the machine frame.

[0017] In the above technical solution, a storage platform is also provided. One end of the platform frame of the storage platform is provided with a hinge shaft and a tilting cylinder. The platform frame can rotate along the hinge shaft under the drive of the tilting cylinder. The other end of the platform frame is provided with a film feeding frame and a tray side beam on both sides. The upper part of the tray side beam is provided with an upper film roller fixing groove. The film feeding frame includes a support part and an installation part. The support part is hinged to the side of the platform frame. The installation part is mounted on the support part. The upper part of the tray side beam is provided with an upper film roller fixing groove. The upper part of the installation part is provided with a lower film roll fixing groove.

[0018] In summary, the advantages of the technical solution of this invention compared with traditional technical means are as follows: the connection method of the cotton harvester reducer in this invention is changed from keyway tapered connection to ball connection. During installation, it is only necessary to first fit the flange onto the end of the spline horizontal shaft, then put the balls into the ball holes of the flange, and finally fit the retaining ring to achieve fixation. The structure is simple, easy to install and disassemble, and the connection strength is better after installation. When used on a high-torque reducer like a cotton harvester, it has high impact resistance, greatly reduces the failure rate, and achieves smooth transmission.

[0019] The transmission rod structure, which previously relied on tapered and keyway connections, has been changed to a telescopic structure composed of a connecting pipe and a connecting rod. After a flange is installed at the end, it is fixed to the flange of the splined horizontal shaft of the gearbox. The length can be adjusted according to actual needs, making it highly adaptable and easy to install. When the cotton picking head malfunctions and needs maintenance, there is no need to remove the connecting rod. Simply pull the transmission rod to change its length to move the cotton picking head. There is no need to reinstall the connecting rod each time, making it more convenient.

[0020] The row divider on the cotton picking head has also been optimized. The first row dividing arm is perpendicular to the shell, so the two cotton picking heads can be placed in both directions. During the cotton picking process, this row divider can actually be used for various row spacings of more than 40 cm, greatly improving its applicability.

[0021] The fixed frame is equipped with guide rods. When it is necessary to adjust the spacing of the cotton picking heads, the fixing bolts are dislodged and retracted into the bolt sleeves. The bolt sleeves can move along the guide rods by means of the guide skirts, without the need for repositioning. Attached Figure Description

[0022] The foregoing and other objects, features and advantages of the present invention will become apparent from the following detailed description taken in conjunction with the accompanying drawings.

[0023] Figure 1 A three-dimensional schematic diagram of the invention;

[0024] Figure 2 This is a three-dimensional schematic diagram of the cotton picking head assembly in this invention;

[0025] Figure 3 This is a top view of the cotton picking head assembly in this invention;

[0026] Figure 4 This is a cross-sectional view of the gearbox in this invention;

[0027] Figure 5 for Figure 4 Sectional view of the end of the horizontal axis of the middle spline;

[0028] Figure 6 This is a cross-sectional schematic diagram of the transmission rod in the stretched state in this invention;

[0029] Figure 7 This is a cross-sectional schematic diagram of the transmission rod in the retracted state in this invention;

[0030] Figure 8 This is a three-dimensional schematic diagram of the cotton removal disc assembly in this invention;

[0031] Figure 9 This is a front view schematic diagram of the cotton removal disc assembly in this invention;

[0032] Figure 10 for Figure 1 A magnified view of a portion of the image;

[0033] Figure 11 This is a three-dimensional schematic diagram of the registration platform in this invention;

[0034] Figure 12 This is a three-dimensional schematic diagram of the film delivery frame in this invention;

[0035] The following are the labels: Frame 100; Guide rod 110; Cotton picking head 210; Cotton inlet 211; Inspection door 212; Fixed frame 220; Fixing bolt 220; Main support 222; Side support 223; Fixing bolt 230; Guide skirt 240; Cotton removal disc assembly 300; Gearbox 400; Housing 410; Splined horizontal shaft 420; Limit groove 421; Splined vertical shaft 430; Flange 440; Ball bearing hole 441; Ball bearing 450; Retaining ring 460; Drive rod 500; connecting pipe 510; first cross joint 511; first outer sleeve 512; connecting rod 520; second cross joint 521; row divider 600; first row dividing arm 610; second row dividing arm 620; storage platform 700; platform frame 710; hinge support shaft 720; tilting cylinder 730; film feeding frame 740; support part 741; mounting part 742; lower film roll fixing groove 743; tray side beam 750; upper film roller fixing groove 751. Detailed Implementation

[0036] Based on the preferred embodiments of the present invention, and through the following description, those skilled in the art can make various changes and modifications without departing from the technical concept of the present invention. The technical scope of the present invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

[0037] The invention will be further described with reference to the following figures:

[0038] like Figures 1-11 As shown, a cotton harvester with an easy-to-maintain cotton harvesting head assembly has a frame 100, on which a cotton harvesting head assembly 200 is mounted. The cotton harvesting head assembly 200 includes a cotton harvesting head 210 and a fixing frame 220. Multiple cotton harvesting heads 210 are mounted on the frame 100 through the fixing frame 220. The housing of the cotton harvesting head 210 is provided with a cotton stripping disc assembly 300 and a reduction gearbox 400.

[0039] The gearbox 400 has a housing 410, in which a splined horizontal shaft 420 and a splined vertical shaft 430 are provided. The splined horizontal shaft 420 and the splined vertical shaft 430 are connected by bevel gear transmission. The splined vertical shaft 430 is connected to the cotton removal disc assembly 300. The splined horizontal shafts 420 of the gearbox 400 of two adjacent cotton picking heads 210 are connected by transmission rods 500.

[0040] The transmission rod 500 has a connecting pipe 510 and a connecting rod 520. The outer end of the connecting pipe 510 is fixedly connected to a first cross joint 511, and the outer end of the connecting rod 520 is fixedly connected to a second cross joint 521. The inner end of the connecting rod 520 is inserted into the connecting pipe 510. An anti-rotation structure is provided between the connecting pipe 510 and the first cross joint 511, and an anti-rotation structure is also provided between the connecting pipe 510 and the connecting rod 520.

[0041] The cotton picking head 210 is equipped with a row divider 600, which includes a first row divider arm 610 and a second row divider arm 620. The first row divider arm 610 is vertically arranged on the cotton picking head 210.

[0042] The fixed frame 220 is provided with a guide rod 110, and the cotton picking head 210 is mounted on the fixed frame 220 by a fixing bolt 230. The bolt sleeve 231 of the fixing bolt 230 is provided with a guide skirt 240, and the guide skirt 240 is mounted on the guide rod 110.

[0043] The anti-rotation structure between the connecting pipe 510 and the first cross-shaped connector 511 consists of an inner spline and an outer spline located on the inner side of the first outer sleeve 512 and the outer side of the connecting pipe 510. The anti-rotation structure between the connecting pipe 510 and the connecting rod 520 consists of an inner hexagonal hole in the connecting pipe 510 and a hexagonal cross-section in the connecting rod 520.

[0044] The connection between the first cross-shaped connector 511 and the first outer sleeve 512 is provided with a stop structure, and the connection between the first outer sleeve 512 and the connecting rod 520 is provided with a stop structure.

[0045] The end of the spline horizontal shaft 420 is provided with a limiting groove 421. A flange 440 is fitted on the shaft end of the spline horizontal shaft 420. The flange 440 is provided with a ball hole 441. A ball 450 is provided in the ball hole 441. The lower part of the ball 450 is provided in the limiting groove 421. A retaining ring 460 is fitted on the flange 440 at the outer periphery of the ball hole 441.

[0046] like Figure 3 As shown, the fixed frame 220 is provided with three cotton picking heads 210, two of which are arranged in a mirror image and the first row dividing arms 610 of the two cotton picking heads 210 abut against each other. When the adjacent cotton picking heads 210 are arranged in a mirror image, the first row dividing arms 610 are arranged vertically, which can achieve the application of various row spacings of more than 40 cm during cotton picking, greatly improving the applicability.

[0047] Meanwhile, the cotton picking head 210 housing is provided with a cotton inlet 211 at the position corresponding to the row divider 600, and the cotton picking head 210 is provided with a maintenance door 212 on the side. Normally, maintenance is carried out at the maintenance door 212. In order to ensure the door can be opened, it is necessary to move the adjacent cotton picking head 210 on the corresponding side so that personnel can enter. Thus, each time, all cotton picking heads 210 need to be disassembled to enter for maintenance. However, when the cotton picking heads 210 are set up in a mirror image, the number of heads that need to be disassembled can be greatly reduced. With the telescopic transmission rod 500, under ideal conditions, only one cotton picking head 210 needs to be disassembled. By moving the other cotton picking heads 210, sufficient space for opening the door and personnel to enter can be provided, which greatly facilitates maintenance.

[0048] The fixed frame 220 includes a main support 222 and a side support 223. The cotton picking head 210 is mounted on the main support 222, and the side support 223 is hinged to the frame 100.

[0049] like Figure 1 , 11As shown, the rear of the frame 100 also has a storage platform 700. One end of the platform frame 710 of the storage platform 700 is provided with a hinge shaft 720 and a tilting cylinder 730. The platform frame 710 can rotate along the hinge shaft 720 under the drive of the tilting cylinder 730. The other end of the platform frame 710 has a film feeding frame 740 and a tray side beam 750 on both sides. The upper part of the tray side beam 750 is provided with an upper film roller fixing groove 751. The film feeding frame 740 includes a support part 741 and a mounting part 742. The support part 741 is hinged to the side of the platform frame 710, and the mounting part 742 is mounted on the support part 741. The tray side beam 750... The upper part is provided with an upper film roller fixing groove 751. The upper part of the mounting part 742 has a lower film roll fixing groove 743. An adjustable film feeding frame is provided on the platform frame 710. Compared with the prior art where the film feeding frame 740 is fixedly set on the packing bin, the film feeding frame 740 of the present invention is hinged to the platform frame through a connecting shaft. Two film rollers are respectively installed on the film feeding frame 740 and the side beam 750 of the support bin. This installation method of the film feeding frame 740 can make it easier to adjust and retract the film feeding rollers. When working, the film feeding frame 740 is rotated to the working position. When the cotton harvester is in the transport state, the film feeding frame can be rotated to retract it, which greatly saves space. At the same time, the distance between the two film feeding rollers can be easily adjusted.

[0050] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A cotton harvester with an easy-to-maintain cotton harvesting head assembly, comprising a frame (100), characterized in that: The frame (100) is equipped with a cotton picking head assembly (200), which includes a cotton picking head (210) and a fixing frame (220). Multiple cotton picking heads (210) are mounted on the frame (100) through the fixing frame (220). The housing of the cotton picking head (210) is provided with a cotton stripping disc assembly (300) and a gearbox (400). The gearbox (400) has a housing (410), in which a splined horizontal shaft (420) and a splined vertical shaft (430) are provided. The splined horizontal shaft (420) and the splined vertical shaft (430) are connected by a bevel gear transmission. The splined vertical shaft (430) is connected to the cotton removal disc assembly (300). The splined horizontal shafts (420) of the gearboxes (400) of two adjacent cotton picking heads (210) are connected by a transmission rod (500). The transmission rod (500) is a telescopic structure. The transmission rod (500) has a connecting pipe (510) and a connecting rod (520). The outer end of the connecting pipe (510) is fixedly connected to a first cross-shaped connector (511), and the outer end of the connecting rod (520) is fixedly connected to a second cross-shaped connector (521). The inner end of the connecting rod (520) is inserted into the connecting pipe (510). An anti-rotation structure is provided between the connecting pipe (510) and the first cross-shaped connector (511), and an anti-rotation structure is also provided between the connecting pipe (510) and the connecting rod (520). The cotton picking head (210) is equipped with a row divider (600), which includes a first row dividing arm (610) and a second row dividing arm (620). The first row dividing arm (610) is vertically arranged on the cotton picking head (210). The fixing frame (220) is provided with a guide rod (110). The cotton picking head (210) is mounted on the fixing frame (220) by a fixing bolt (230). The bolt sleeve (231) of the fixing bolt (230) is provided with a guide skirt (240). The guide skirt (240) is mounted on the guide rod (110). The anti-rotation structure between the connecting pipe (510) and the first cross-shaped connector (511) consists of an inner spline and an outer spline located on the inner side of the first outer sleeve (512) and the outer side of the connecting pipe (510); the anti-rotation structure between the connecting pipe (510) and the connecting rod (520) consists of an inner hexagonal hole for the connecting pipe (510) and a hexagonal cross-section for the connecting rod (520). The first cross connector (511) and the first outer sleeve (512) are provided with a stop structure at the connection point, and the first outer sleeve (512) and the connecting rod (520) are provided with a stop structure at the connection point.

2. The cotton harvester with an easy-to-maintain cotton harvesting head assembly according to claim 1, characterized in that: The end of the spline horizontal shaft (420) is provided with a limiting groove (421). A flange (440) is fitted on the shaft end of the spline horizontal shaft (420). A ball hole (441) is provided on the flange (440). A ball (450) is provided in the ball hole (441). The lower part of the ball (450) is located in the limiting groove (421). A retaining ring (460) is fitted on the flange (440) at the outer periphery of the ball hole (441).

3. The cotton harvester with an easy-to-maintain cotton harvesting head assembly according to claim 1, characterized in that: The fixed frame (220) is provided with three cotton picking heads (210), of which two adjacent cotton picking heads (210) are arranged in a mirror image, and the first dividing arms (610) of the two cotton picking heads (210) abut against each other.

4. The cotton harvester with an easy-to-maintain cotton harvesting head assembly according to claim 1, characterized in that: The cotton picking head (210) shell is provided with a cotton inlet (211) at the position corresponding to the row divider (600), and the cotton picking head (210) is provided with an inspection door (212) on the side.

5. The cotton harvester with an easy-to-maintain cotton harvesting head assembly according to claim 1, characterized in that: The fixed frame (220) includes a main support (222) and a side support (223). The cotton picking head (210) is mounted on the main support (222), and the side support (223) is hinged to the frame (100).

6. The cotton harvester with an easy-to-maintain cotton harvesting head assembly according to claim 1, characterized in that: It also has a storage platform (700), on one end of the platform frame (710) of the storage platform (700) is provided a hinge shaft (720) and a tilting cylinder (730). The platform frame (710) can rotate along the hinge shaft (720) under the drive of the tilting cylinder (730). The other end of the platform frame (710) is provided with a film feeding frame (740) and a tray side beam (750). The upper part of the tray side beam (750) is provided with an upper film roller fixing groove (751). The film feeding frame (740) includes a support part (741) and an installation part (742). The support part (741) is hinged to the side of the platform frame (710). The installation part (742) is mounted on the support part (741). The upper part of the tray side beam (750) is provided with an upper film roller fixing groove (751). The upper part of the installation part (742) is provided with a lower film roll fixing groove (743).

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