A unit for collecting both ears and stems and pulling and picking the ears

Abstract

The present invention discloses an ear-stem collecting, stem-pulling and ear-picking unit. The ear-stem collecting, stem-pulling and ear-picking unit includes a pair of feed rollers installed on the front side of the top of a stem-pulling and ear-picking gear box and transmission-connected to the stem-pulling and ear-picking gear box; a pair of ear-picking and stem-pulling rollers corresponding to the feed rollers and installed on the rear side of the top of the stem-pulling and ear-picking gear box and transmission-connected to the stem-pulling and ear-picking gear box. The ear-picking and stem-pulling rollers include an upper ear-picking roller and a lower stem-pulling roller. The top of one of the ear-picking rollers is transmission-connected to a reversing gear box that provides power to the roller. A clamping sprocket and a clamping chain that cooperates with the clamping sprocket are connected to the upper part of the feed roller. The probability of the stem-pulling roller malfunctioning due to being entangled by broken leaves is reduced, thereby improving production efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of corn harvesters, and in particular to a stem-pulling and ear-picking unit for harvesting both ears and stems. Background Art

[0002] Existing corn harvesters are equipped with a clamping chain and a stalk-pulling roller, arranged in sequence from front to back. The stalk-pulling roller is connected to an ear-picking roller, and a clamping sprocket is installed between the stalk-pulling roller and the ear-picking roller to drive the clamping chain. During operation, the two clamping sprockets drive the corn stalks backward. When the corn stalks reach the ear-picking roller, the stalk-pulling roller and ear-picking roller continue to pull the corn stalks and remove the corn ears.

[0003] The above technical solution has the following disadvantages: the stem pulling roller and the clamping sprocket are coaxially arranged, and the corn stalks are easily driven by the clamping chain to bypass the stem pulling roller and move forward again when they reach the back of the stem pulling roller, which can easily cause the stem pulling roller and the clamping chain to be entangled by broken leaves. Summary of the Invention

[0004] The purpose of the present invention is to provide an ear-stem collecting and stem-pulling ear-picking unit in order to solve the above problems, reduce the probability of failure of the stem-pulling roller due to entanglement by broken leaves, and improve production efficiency.

[0005] In order to achieve the above-mentioned purpose, the present invention discloses an ear of stem collecting, stem pulling and ear picking unit, which includes a pair of feeding rollers installed on the front side of the top of a stem pulling and ear picking gear box and connected to the stem pulling and ear picking gear box, a pair of ear picking and stem pulling rollers corresponding to the feeding rollers, installed on the rear side of the top of the stem pulling and ear picking gear box and connected to the stem pulling and ear picking gear box, the ear picking and stem pulling rollers include an upper ear picking roller and a lower stem pulling roller, the top of one of the ear picking rollers is connected to the reversing gear box that provides power to it, and the upper part of the feeding roller is connected to a clamping sprocket and a clamping chain that cooperates with the clamping sprocket.

[0006] The clamping chain is wrapped around a clamping sprocket located in front of the stalk-pulling roller. During operation, the two stalk-pulling rollers rotate in opposite directions, as do the two feed rollers. The clamping chain drives the corn stalks backward. When the corn stalks reach the clamping sprockets, the stalk-pulling rollers and ear-removing rollers continue pulling the stalks and remove the ears. The clamping chain then continues to rotate, completing the delivery of the next stalk. This prevents corn stalks from bypassing the stalk-pulling rollers under the clamping chain, reducing the chance of stalk-pulling roller failure due to entanglement in broken leaves and improving production efficiency.

[0007] Preferably, the stem pulling and ear picking gear box is rotatably connected to two vertically arranged stem pulling rollers, the stem pulling rollers are installed on the stem pulling rollers, and the two stem pulling rollers are arranged one on the left and one on the right. The stem pulling and ear picking gear box is also rotatably connected to two vertically arranged feeding rollers located in front of the stem pulling rollers, the feeding rollers are installed on the feeding rollers, and the two feeding rollers are arranged one on the left and one on the right. The two stem pulling rollers are transmission connected, the two feeding rollers are transmission connected, and one of the stem pulling rollers is transmission connected to one of the feeding rollers.

[0008] Preferably, one of the stem pulling roller shafts is equipped with a first stem pulling roller gear and a second stem pulling roller gear, the other stem pulling roller shaft is equipped with a third stem pulling roller gear meshing with the second stem pulling roller gear, one of the feeding roller shafts is equipped with a second feeding roller gear and a first feeding roller gear meshing with the first stem pulling roller gear, the other feeding roller shaft is equipped with a third feeding roller gear meshing with the second feeding roller gear, and the stem pulling roller shaft equipped with the first stem pulling roller gear is diagonally arranged to the feeding roller shaft equipped with the first feeding roller gear. During operation, the reversing gearbox of the ear-picking roller transmits power to the first ear-picking roller, driving the first ear-picking roller and the first stalk-pulling roller shaft to rotate. The first stalk-pulling roller shaft drives the second stalk-pulling roller shaft via the second and third stalk-pulling roller gears. The first stalk-pulling roller shaft drives the first feed roller shaft via the first stalk-pulling roller gear and the first feed roller gear. The first feed roller shaft drives the second feed roller shaft via the second and third feed roller gears. This compact structure provides reliable transmission.

[0009] Preferably, the first stalk pulling roller gear and the first feed roller gear are located in the lower inner portion of the stalk pulling and ear picking gear housing, the second stalk pulling roller gear and the third stalk pulling roller gear are located in the upper inner portion of the stalk pulling and ear picking gear housing, and the second feed roller gear and the third feed roller gear are located in the middle inner portion of the stalk pulling and ear picking gear housing. When in use, the gears in the stalk pulling and ear picking gear housing are arranged in three layers, reducing the risk of mutual interference and improving space utilization. This structure is compact and the transmission is reliable.

[0010] Preferably, the height of the upper end of the feed roller shaft is greater than that of the upper end of the stalk pulling roller shaft. When in use, the feed roller shaft is used to mount the feed roller. Since the upper end of the feed roller is suspended, the longer length of the feed roller shaft is beneficial to improving the stability of the feed roller. The stalk pulling roller shaft is used to mount the stalk pulling roller and the ear picking roller. Since the upper end of the ear picking roller is suspended, the stalk pulling roller shaft can be shorter.

[0011] Preferably, a feeding roller sleeve is mounted on the stem pulling and ear picking gear housing, and the feeding roller shaft is rotatably connected to the upper end of the feeding roller sleeve. When in use, the feeding roller is sleeved on the feeding roller shaft, and the feeding roller sleeve can improve the stability of the feeding roller shaft and the feeding roller.

[0012] Preferably, the upper end of the stem pulling roller has a spline shaft structure, and the upper end of the feeding roller has a spline shaft structure, which is convenient for installation when in use.

[0013] Preferably, the upper end of the gear box body for pulling the stems and picking the ears is open, and a gear box cover for pulling the stems and picking the ears is detachably installed on the upper end of the gear box body.

[0014] Preferably, the lower end of the stem pulling roller is rotatably connected to the bottom of the stem pulling and ear picking gear box, the stem pulling roller passes through the stem pulling and ear picking gear box cover and is rotatably connected to the stem pulling and ear picking gear box cover, the lower end of the feed roller is rotatably connected to the bottom of the stem pulling and ear picking gear box, the feed roller passes through the stem pulling and ear picking gear box cover and is rotatably connected to the stem pulling and ear picking gear box cover, which facilitates the manufacture and installation of the stem pulling and ear picking gear box.

[0015] Preferably, the distance between the central axes of the two pulling rollers is smaller than the distance between the central axes of the two feeding rollers; and the width of the gap between the two pulling rollers is smaller than the width of the gap between the two feeding rollers, so as to facilitate the transportation of corn stalks during use.

[0016] Preferably, the shape of the gear box body of the stem pulling and ear picking gear box body is rectangular, and the four corners of the gear box body are rounded, so as to facilitate the installation of each gear.

[0017] Preferably, the feed roller side portion is connected with several feed ridges, which extend in the vertical direction and have several convex teeth on the outside of the feed ridge. During use, as the feed roller rotates, the feed ridges move the corn stalks to the rear of the feed roller.

[0018] Preferably, the diameter of the upper end of the pulling roller is larger than the diameter of the lower end thereof, and the side of the pulling roller is connected to a plurality of pulling ridges, which extend in a vertical direction and are arranged vertically on the outer sides of the pulling ridges. When in use, the gap between the lower ends of the two pulling rollers is large, which facilitates the feeding of corn stalks and reduces blockage.

[0019] Preferably, the cross-section of the side portion of the ear picking roller is octagonal, and the side portion of the ear picking roller is connected to a plurality of first ear picking ridges, the first ear picking ridges extending in a vertical direction. When in use, as the ear picking roller rotates, the first ear picking ridges push the corn stalks to the rear of the ear picking roller, thereby facilitating separation of the corn ears from the corn stalks.

[0020] Preferably, the cross-section of the first ear picking ridge is circular. Preferably, the first ear picking ridge is made of threaded round steel to increase the friction between the ear picking roller and the corn stalks. The first ear picking ridge pushes the corn stalks to the rear of the ear picking roller, making it easier to separate the corn ears from the corn stalks.

[0021] Preferably, the number of the first ear picking ridges is four, and the four first ear picking ridges are arranged in a one-to-one correspondence with the four corners of the side of the ear picking roller. When in use, the first ear picking ridges cooperate with the ear picking roller to push the corn stalks left and right, thereby conveniently separating the corn ears from the corn stalks.

[0022] Preferably, the cross-section of the side portion of the ear picking roller is circular, and the side portion of the ear picking roller is connected to a plurality of first ear picking ridges, each of which is U-shaped. The open end of the ear picking roller faces the direction of rotation of the ear picking roller, and the plurality of first ear picking ridges are spirally distributed. During use, as the ear picking roller rotates, the first ear picking ridges push the corn stalks to the rear of the ear picking roller, thereby facilitating separation of the corn ears from the corn stalks.

[0023] Preferably, the length of the lower side of the first ear picking ridge is greater than the length of the upper side of the first ear picking ridge. When in use, the friction between the ear picking roller and the corn stalk is increased, and the first ear picking ridge pushes the corn stalk to the rear of the ear picking roller, making it easier to separate the corn ears from the corn stalk.

[0024] Preferably, the lower side end of the first ear picking ridge is tilted downward to increase the friction between the ear picking roller and the corn stalks during use, so that the first ear picking ridge pushes the corn stalks to the rear of the ear picking roller, making it easier to separate the corn ears from the corn stalks.

[0025] Preferably, the cross-section of the side portion of the ear picking roller is circular, and the side portion of the ear picking roller is connected to a second spiral ear picking ridge. When in use, as the ear picking roller rotates, the second ear picking ridge pushes the corn stalks to the rear of the ear picking roller, making it easier to separate the corn ears from the corn stalks.

[0026] Preferably, the side of the ear picking roller is further connected to a plurality of first ear picking ridges, which extend in a vertical direction and have notches for the passage of second ear picking ridges. When in use, the friction between the ear picking roller and the corn stalks is increased, and the first and second ear picking ridges push the corn stalks to the rear of the ear picking roller, making it easier to separate the corn ears from the corn stalks.

[0027] Preferably, the cross-section of the first and second ear-picking ridges is circular. Preferably, the first ear-picking ridge is made of threaded round steel to increase the friction between the ear-picking roller and the corn stalks. The first and second ear-picking ridges push the corn stalks to the rear of the ear-picking roller, making it easier to separate the corn ears from the corn stalks.

[0028] Preferably, the stem pulling roller and the ear picking roller are hollow structures, which are convenient for manufacturing and installation.

[0029] Preferably, the lower end of the stem pulling roller has a spline groove structure, and the upper end of the ear picking roller has a spline shaft structure, which is convenient for manufacturing and installation.

[0030] In summary, the present invention has the following beneficial effects: a clamping chain is wrapped around a clamping sprocket located in front of the stalk-pulling roller. During use, the two stalk-pulling rollers rotate in opposite directions, and the two feed rollers rotate in opposite directions. The clamping chain drives the corn stalks backward. When the corn stalks reach the clamping sprocket, the stalk-pulling roller and the ear-removing roller continue to pull the corn stalks and remove the ears of corn. The clamping chain continues to rotate to complete the delivery of the next corn stalk. The corn stalks will not bypass the stalk-pulling rollers under the drive of the clamping chain, reducing the probability of the stalk-pulling rollers malfunctioning due to entanglement with broken leaves, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a structural schematic diagram of an ear-stem collecting and stem-pulling ear-picking unit and a clamping chain of the present invention;

[0032] Figure 2 This is a schematic diagram of the three-dimensional structure of a unit for collecting both ears and stems and pulling and picking ears of the present invention;

[0033] Figure 3 This is a front view structural schematic diagram of an ear-stem collecting and stem-pulling ear-picking unit of the present invention;

[0034] Figure 4 yes Figure 3 Structural diagram of the middle section AA;

[0035] Figure 5 yes Figure 3 Schematic diagram of the top view structure;

[0036] Figure 6 yes Figure 3 Schematic diagram of the structure of the middle section BB;

[0037] Figure 7 It is a schematic diagram of the three-dimensional structure of a stem-pulling and ear-picking gearbox in a stem-pulling and ear-picking unit for simultaneously collecting and picking ears of the present invention;

[0038] Figure 8 It is a front view structural schematic diagram of a stem pulling and ear picking gearbox in a stem pulling and ear picking unit for simultaneously collecting and removing ears of the present invention;

[0039] Figure 9 It is a schematic top view of the structure of a stem pulling and ear picking gearbox in a stem pulling and ear picking unit for simultaneously collecting and removing ears of the present invention;

[0040] Figure 10 yes Figure 9 Schematic diagram of the structure of the middle section CC;

[0041] Figure 11 yes Figure 9 Schematic diagram of the structure of the middle section DD;

[0042] Figure 12It is a schematic diagram of the three-dimensional structure of the interior of a stem-pulling and ear-picking gearbox in a stem-pulling and ear-picking unit for simultaneously collecting and picking ears of the present invention;

[0043] Figure 13 It is a front view structural schematic diagram of the interior of a stem pulling and ear picking gear box in a stem pulling and ear picking unit for simultaneously collecting and removing ears of the present invention;

[0044] Figure 14 It is a schematic top view of the internal structure of a stem pulling and ear picking gear box in a stem pulling and ear picking unit for simultaneously collecting and removing ears of the present invention;

[0045] Figure 15 yes Figure 14 Schematic diagram of the structure of the middle section EE;

[0046] Figure 16 yes Figure 14 Schematic diagram of the structure of the FF in the middle section;

[0047] Figure 17 This is a schematic diagram of the three-dimensional structure of the ear-picking roller and the stem-pulling roller in Example 1 of the ear-stem-collecting and stem-pulling ear-picking unit of the present invention;

[0048] Figure 18 This is a schematic diagram of the cross-sectional structure of the ear-picking roller in Example 1 of an ear-stem-collecting and stem-pulling ear-picking unit of the present invention;

[0049] Figure 19 This is a schematic diagram of the cross-sectional structure of the stem pulling roller in Example 1 of the ear-stem and ear-picking unit of the present invention;

[0050] Figure 20 This is a schematic diagram of the three-dimensional structure of the ear-picking roller and the stem-pulling roller in Example 2 of the ear-stem and stem-collecting unit of the present invention;

[0051] Figure 21 This is a schematic diagram of the cross-sectional structure of an ear-picking roller in Example 2 of an ear-stem-collecting and stem-pulling ear-picking unit of the present invention;

[0052] Figure 22 This is a schematic cross-sectional structural diagram of a stem pulling roller in Example 2 of a stem pulling and ear picking unit for simultaneously collecting and removing ears of the present invention;

[0053] Figure 23 This is a schematic diagram of the three-dimensional structure of the ear-picking roller and the stem-pulling roller in Example 3 of the ear-stem and stem-collecting and ear-picking unit of the present invention;

[0054] Figure 24 This is a schematic diagram of the cross-sectional structure of the ear-picking roller in Example 3 of an ear-stem-collecting and stem-pulling ear-picking unit of the present invention;

[0055] Figure 25 It is a schematic diagram of the cross-sectional structure of the stem pulling roller in Example 3 of the ear-stem and ear-picking unit of the present invention.

[0056] In the picture:

[0057] 602, clamping chain;

[0058] 703, clamping sprocket;

[0059] 801, picking roller; 802, picking roller reversing gear box; 803, first picking ridge; 804, second picking ridge;

[0060] 901, stem pulling roller; 902, stem pulling ridge;

[0061] 1001, stem pulling and ear picking gear box; 1002, feed roller shaft; 1003, stem pulling roller shaft; 1004, feed roller sleeve; 1005, first stem pulling roller gear; 1006, second stem pulling roller gear; 1007, third stem pulling roller gear; 1008, first feed roller gear; 1009, second feed roller gear; 1010, third feed roller gear; 1011, stem pulling and ear picking gear box cover;

[0062] 1101. Feed roller; 1102. Feed flute. DETAILED DESCRIPTION

[0063] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0064] In the description of this application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0065] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout this application, unless otherwise specified, "plurality" means two or more.

[0066] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0067] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0068] like Figures 1 to 25 As shown, a stem collecting, stem pulling and ear picking unit includes a pair of feeding rollers 1101 installed on the top front side of the stem pulling and ear picking gear box 1001 and connected to the stem pulling and ear picking gear box, a pair of ear picking and stem pulling rollers corresponding to the feeding rollers 1101, installed on the top rear side of the stem pulling and ear picking gear box 1001 and connected to the stem pulling and ear picking gear box, the ear picking and stem pulling rollers include an upper ear picking roller 801 and a lower stem pulling roller 901, the top of one of the ear picking rollers 801 is connected to the reversing gear box 802 that provides power for it, and the upper part of the feeding roller 1101 is connected to a clamping sprocket 703 and a clamping chain 602 that cooperates with the clamping sprocket 703.

[0069] Two vertically arranged stem pulling rollers 1003 are rotatably connected to the stem pulling and ear picking gear box 1001, and the stem pulling roller 901 is installed on the stem pulling roller 1003. The two stem pulling rollers 1003 are arranged one on the left and one on the right. The stem pulling and ear picking gear box 1001 is also rotatably connected to two vertically arranged feeding rollers 1002 located in front of the stem pulling roller 1003, and the feeding roller 1101 is installed on the feeding roller 1002. The two feeding rollers 1002 are arranged one on the left and one on the right. The two stem pulling rollers 1003 are transmission connected to each other, and the two feeding rollers 1002 are transmission connected to each other, and one of the stem pulling rollers 1003 is transmission connected to one of the feeding rollers 1002.

[0070] The clamping chain 602 is wrapped around a clamping sprocket 703, which is located in front of the stalk-pulling roller 901. During operation, the two stalk-pulling rollers 901 rotate in opposite directions, and the two feed rollers 1101 rotate in opposite directions. The clamping chain 602 drives the corn stalks backward. When the corn stalks reach the clamping sprocket 703, the stalk-pulling rollers 901 and the ear-removing rollers 801 continue to pull the stalks and remove the ears of corn. The clamping chain 602 continues to rotate to complete the delivery of the next corn stalk. Driven by the clamping chain 602, the corn stalks will not bypass the stalk-pulling rollers 901, reducing the probability of the stalk-pulling rollers 901 malfunctioning due to entanglement with broken leaves, thereby improving production efficiency.

[0071] like Figure 10 、 11 As shown, one of the stem pulling roller shafts 1003 is equipped with a first stem pulling roller gear 1005 and a second stem pulling roller gear 1006, and the other stem pulling roller shaft 1003 is equipped with a third stem pulling roller gear 1007 meshing with the second stem pulling roller gear 1006. One of the feeding roller shafts 1002 is equipped with a second feeding roller gear 1009 and a first feeding roller gear 1008 meshing with the first stem pulling roller gear 1005, and the other feeding roller shaft 1002 is equipped with a third feeding roller gear 1010 meshing with the second feeding roller gear 1009. The stem pulling roller shaft 1003 equipped with the first stem pulling roller gear 1005 and the feeding roller shaft 1002 equipped with the first feeding roller gear 1008 are diagonally arranged. During use, the ear-picking roller reversing gearbox 802 transmits power to the first ear-picking roller 801, driving the first ear-picking roller 801 and the first stem-pulling roller shaft 1003 to rotate. The first stem-pulling roller shaft 1003 drives the second stem-pulling roller shaft 1003 to rotate via the second stem-pulling roller gear 1006 and the third stem-pulling roller gear 1007. The first stem-pulling roller shaft 1003 drives the first feeding roller shaft 1002 to rotate via the first stem-pulling roller gear 1005 and the first feeding roller gear 1008. The first feeding roller shaft 1002 drives the second feeding roller shaft 1002 to rotate via the second feeding roller gear 1009 and the third feeding roller gear 1010. This structure is compact and the transmission is reliable.

[0072] like Figure 13 As shown, the first stalk pulling roller gear 1005 and the first feed roller gear 1008 are located in the lower inner portion of the stalk pulling and ear picking gear housing 1001, the second stalk pulling roller gear 1006 and the third stalk pulling roller gear 1007 are located in the upper inner portion of the stalk pulling and ear picking gear housing 1001, and the second feed roller gear 1009 and the third feed roller gear 1010 are located in the middle inner portion of the stalk pulling and ear picking gear housing 1001. When in use, the gears in the stalk pulling and ear picking gear housing 1001 are arranged in three layers, reducing the risk of mutual interference and improving space utilization. This structure is compact and the transmission is reliable.

[0073] like Figure 4 As shown, the height of the upper end of the feed roller shaft 1002 is greater than the height of the upper end of the stalk pulling roller shaft 1003. When in use, the feed roller shaft 1002 is used to mount the feed roller 1101. Since the upper end of the feed roller 1101 is suspended in the air, the longer length of the feed roller shaft 1002 is beneficial to improving the stability of the feed roller 1101. The stalk pulling roller shaft 1003 is used to mount the stalk pulling roller 901 and the ear picking roller 801. Since the upper end of the ear picking roller 801 is suspended in the air, the stalk pulling roller shaft 1003 can be shorter.

[0074] like Figure 7As shown, the stem pulling and ear picking gear box 1001 is equipped with a feeding roller sleeve 1004 that is sleeved on the feeding roller shaft 1002. The feeding roller shaft 1002 is rotatably connected to the upper end of the feeding roller sleeve 1004. When in use, the feeding roller 1101 is sleeved on the feeding roller shaft 1002, and the feeding roller sleeve 1004 can improve the stability of the feeding roller shaft 1002 and the feeding roller 1101.

[0075] like Figure 7 As shown, the upper end of the stem pulling roller 1003 has a spline shaft structure, and the upper end of the feeding roller 1002 has a spline shaft structure. When in use, it is easy to install.

[0076] like Figure 4 As shown, the upper end of the stem pulling and ear picking gear box 1001 is open, and the upper end of the stem pulling and ear picking gear box 1001 is detachably mounted with a stem pulling and ear picking gear box cover 1011, which facilitates the manufacture and installation of the stem pulling and ear picking gear box 1001.

[0077] like Figure 11 、 12 As shown, the lower end of the stem pulling roller 1003 is rotatably connected to the bottom of the stem pulling and ear picking gear box 1001, and the stem pulling roller 1003 passes through the stem pulling and ear picking gear box cover 1011 and is rotatably connected to the stem pulling and ear picking gear box cover 1011. The lower end of the feeding roller 1002 is rotatably connected to the bottom of the stem pulling and ear picking gear box 1001, and the feeding roller 1002 passes through the stem pulling and ear picking gear box cover 1011 and is rotatably connected to the stem pulling and ear picking gear box cover 1011. This facilitates the manufacture and installation of the stem pulling and ear picking gear box 1001.

[0078] like Figure 2 、 7 As shown, the distance between the center axes of the two pulling rollers 1003 is smaller than the distance between the center axes of the two feeding rollers 1002; the width of the gap between the two pulling rollers 901 is smaller than the width of the gap between the two feeding rollers 1101. This facilitates the transportation of corn stalks during use.

[0079] The shape of the gear box 1001 for pulling the stems and picking the ears is rectangular, and the four corners of the gear box 1001 are rounded, which is convenient for installing the gears.

[0080] like Figure 3 As shown, the side of the feeding roller 1101 is connected with a plurality of feeding ridges 1102, which extend in the vertical direction and have a plurality of convex teeth on the outside of the feeding ridge 1102. During use, as the feeding roller 1101 rotates, the feeding ridge 1102 pushes the corn stalks to the rear of the feeding roller 1101.

[0081] like Figure 17As shown, the diameter of the upper end of the pulling roller 901 is larger than the diameter of the lower end. The side of the pulling roller 901 is connected to a plurality of pulling ridges 902, which extend in the vertical direction and are arranged vertically on the outer sides of the pulling ridges 902. When in use, the gap between the lower ends of the two pulling rollers 901 is large, which facilitates the feeding of corn stalks and reduces blockage.

[0082] Example 1: Figures 17 to 19 As shown, the side cross-section of the ear picking roller 801 is octagonal, and the side of the ear picking roller 801 is connected to a plurality of first ear picking ridges 803, which extend in the vertical direction. When in use, as the ear picking roller 801 rotates, the first ear picking ridges 803 push the corn stalks to the rear of the ear picking roller 801, making it easier to separate the corn ears from the corn stalks.

[0083] The cross-section of the first ear picking ridge 803 is circular. Preferably, the first ear picking ridge 803 is made of threaded round steel to increase the friction between the ear picking roller 801 and the corn stalks. The first ear picking ridge 803 pushes the corn stalks to the rear of the ear picking roller 801, making it easier to separate the corn ears from the corn stalks.

[0084] There are four first ear picking ridges 803, which are arranged one-to-one with the four corners of the side of the ear picking roller 801. When in use, the first ear picking ridges 803 cooperate with the ear picking roller 801 to push the corn stalks left and right, making it easier to separate the corn ears from the corn stalks.

[0085] Example 2: Figures 20 to 22 As shown, the side cross-section of the ear picking roller 801 is circular, and the side of the ear picking roller 801 is connected to a plurality of first ear picking ridges 803. The first ear picking ridges 803 are U-shaped, and the open end of the ear picking roller 801 faces the direction of rotation of the ear picking roller 801. The plurality of first ear picking ridges 803 are distributed in a spiral shape. When in use, as the ear picking roller 801 rotates, the first ear picking ridges 803 push the corn stalks to the rear of the ear picking roller 801, making it easier to separate the corn ears from the corn stalks.

[0086] The length of the lower side of the first ear picking ridge 803 is greater than the length of the upper side of the first ear picking ridge 803. When in use, the friction between the ear picking roller 801 and the corn stalk is increased, and the first ear picking ridge 803 pushes the corn stalk to the rear of the ear picking roller 801, making it easier to separate the corn ears from the corn stalk.

[0087] The lower side end of the first ear picking ridge 803 is tilted downward. When in use, the friction between the ear picking roller 801 and the corn stalk is increased, and the first ear picking ridge 803 pushes the corn stalk to the rear of the ear picking roller 801, making it easier to separate the corn ears from the corn stalk.

[0088] Example 3: Figures 23 to 25As shown, the cross-section of the side of the ear picking roller 801 is circular, and the side of the ear picking roller 801 is connected to the spiral second ear picking ridge 804. When in use, as the ear picking roller 801 rotates, the second ear picking ridge 804 pushes the corn stalks to the rear of the ear picking roller 801, making it easier to separate the corn ears from the corn stalks.

[0089] The side of the picking roller 801 is also connected to a plurality of first picking ridges 803. The first picking ridges 803 extend in the vertical direction and have notches that allow the second picking ridges 804 to pass through. When in use, the friction between the picking roller 801 and the corn stalks is increased, and the first picking ridges 803 and second picking ridges 804 push the corn stalks to the rear of the picking roller 801, making it easier to separate the corn ears from the corn stalks.

[0090] The cross-sections of the first and second ear-picking ridges 803 and 804 are circular. Preferably, the first ear-picking ridges 803 are made of threaded round steel to increase the friction between the ear-picking roller 801 and the corn stalks. The first and second ear-picking ridges 803 and 804 push the corn stalks to the rear of the ear-picking roller 801, making it easier to separate the corn ears from the corn stalks.

[0091] The stem pulling roller 901 and the ear picking roller 801 are hollow structures, which are convenient for manufacturing and installation.

[0092] The lower end of the stem pulling roller 901 has a spline groove structure, and the upper end of the ear picking roller 801 has a spline shaft structure, which is convenient for manufacturing and installation.

[0093] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A unit for collecting and pulling the stems of ears and picking the ears, characterized in that: The invention comprises a pair of feeding rollers (1101) mounted on the front side of the top of the stem pulling and ear picking gear box (1001) and connected to the stem pulling and ear picking gear box, and a pair of ear picking and stem pulling rollers corresponding to the feeding rollers (1101) and mounted on the rear side of the top of the stem pulling and ear picking gear box (1001) and connected to the stem pulling and ear picking gear box. The ear picking and stem pulling rollers comprise an upper ear picking roller (801) and a lower stem pulling roller (901). The top of one of the ear picking rollers (801) is connected to a reversing gear box (802) for providing power thereto. The upper part of the feeding roller (1101) is connected to a clamping sprocket (703) and a clamping chain (602) matched with the clamping sprocket (703). Two vertically arranged stem pulling rollers (1003) are rotatably connected to the stem pulling and ear picking gear box (1001), the stem pulling roller (901) is mounted on the stem pulling roller (1003), and the two stem pulling rollers (1003) are arranged one on the left and one on the right. The stem pulling and ear picking gear box (1001) is also rotatably connected to two vertically arranged feeding rollers (1002) located in front of the stem pulling roller (1003), the feeding roller (1101) is mounted on the feeding roller (1002), and the two feeding rollers (1002) are arranged one on the left and one on the right. The two stem pulling rollers (1003) are transmission-connected to each other, the two feeding rollers (1002) are transmission-connected to each other, and one of the stem pulling rollers (1003) is transmission-connected to one of the feeding rollers (1002). A first stem pulling roller gear (1005) and a second stem pulling roller gear (1006) are mounted on one of the stem pulling roller shafts (1003); a third stem pulling roller gear (1007) meshing with the second stem pulling roller gear (1006) is mounted on the other stem pulling roller shaft (1003); a second feed roller gear (1009) and a first feed roller gear (1008) meshing with the first stem pulling roller gear (1005) are mounted on one of the feed roller shafts (1002); a third feed roller gear (1010) meshing with the second feed roller gear (1009) is mounted on the other feed roller shaft (1002); the stem pulling roller shaft (1003) mounted with the first stem pulling roller gear (1005) and the feed roller shaft (1002) mounted with the first feed roller gear (1008) are arranged diagonally.

2. The ear-stem collecting, stem-pulling and ear-picking unit according to claim 1, characterized in that: The first stem pulling roller gear (1005) and the first feeding roller gear (1008) are located at the lower inner part of the stem pulling and ear picking gear housing (1001), the second stem pulling roller gear (1006) and the third stem pulling roller gear (1007) are located at the upper inner part of the stem pulling and ear picking gear housing (1001), and the second feeding roller gear (1009) and the third feeding roller gear (1010) are located at the middle inner part of the stem pulling and ear picking gear housing (1001).

3. The ear stem collecting, stem pulling and ear picking unit according to claim 1, characterized in that: The height of the upper end of the feeding roller (1002) is greater than the height of the upper end of the stem pulling roller (1003); A feeding roller sleeve (1004) sleeved on the feeding roller shaft (1002) is installed on the stem pulling and ear picking gear box (1001), and the feeding roller shaft (1002) and the upper end of the feeding roller sleeve (1004) are rotatably connected.

4. The ear-stem collecting, stem-pulling and ear-picking unit according to claim 1, characterized in that: The lower end of the stem pulling roller (1003) is rotatably connected to the bottom of the stem pulling and ear picking gear box (1001), the stem pulling roller (1003) passes through the stem pulling and ear picking gear box cover (1011) and is rotatably connected to the stem pulling and ear picking gear box cover (1011), the lower end of the feeding roller (1002) is rotatably connected to the bottom of the stem pulling and ear picking gear box (1001), the feeding roller (1002) passes through the stem pulling and ear picking gear box cover (1011) and is rotatably connected to the stem pulling and ear picking gear box cover (1011); The distance between the center axes of the two stem pulling rollers (1003) is smaller than the distance between the center axes of the two feeding rollers (1002); and the width of the gap between the two stem pulling rollers (901) is smaller than the width of the gap between the two feeding rollers (1101).

5. The ear stem collecting, stem pulling and ear picking unit according to claim 1, characterized in that: The diameter of the upper end of the stem pulling roller (901) is greater than the diameter of the lower end thereof, and a plurality of stem pulling ridges (902) are connected to the side of the stem pulling roller (901).

6. The ear stem collecting, stem pulling and ear picking unit according to claim 5, characterized in that: The cross section of the side of the picking roller (801) is octagonal in shape, and the side of the picking roller (801) is connected to a plurality of first picking ridges (803), and the first picking ridges (803) extend in the vertical direction; The cross-section of the first ear picking ridge (803) is circular; The number of the first ear-picking ridges (803) is four, and the four first ear-picking ridges (803) are arranged in a one-to-one correspondence with the four corners spaced apart from the side of the ear-picking roller (801).

7. The ear stem collecting, stem pulling and ear picking unit according to claim 5, characterized in that: The cross-section of the side of the picking roller (801) is circular, and a plurality of first picking ridges (803) are connected to the side of the picking roller (801). The shape of the first picking ridges (803) is U-shaped. The open end of the picking roller (801) faces the rotation direction of the picking roller (801), and the plurality of first picking ridges (803) are distributed in a spiral shape. The length of the lower side of the first picking ridge (803) is greater than the length of the upper side of the first picking ridge (803); The end portion of the lower side of the first ear-picking ridge (803) is tilted downward.

8. The ear stem collecting, stem pulling and ear picking unit according to claim 5, characterized in that: The cross-section of the side of the ear picking roller (801) is circular, and the side of the ear picking roller (801) is connected to a second ear picking ridge (804) in a spiral shape; The side of the ear picking roller (801) is further connected to a plurality of first ear picking ridges (803), the first ear picking ridges (803) extending in a vertical direction, and having a notch for allowing the second ear picking ridges (804) to pass through. The cross-sections of the first ear-picking ridge (803) and the second ear-picking ridge (804) are circular.

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