Combine

Abstract

The present invention relates to a combine harvester comprising: an engine coupled to a vehicle body to generate a drive; a cutting unit for cutting crops; a threshing unit for threshing crops transported from the cutting unit; a transmission unit for performing a gear shift in response to the drive generated by the engine; a forward transmission unit for operating the cutting unit in a forward direction so that crops are transported from the cutting unit to the threshing unit; and a reverse transmission unit for operating the cutting unit in a reverse direction opposite to the forward direction.

Description

Technology Field

[0001] The present invention relates to a combine used for harvesting crops. Background Technology

[0002] A combine is a harvesting machine that performs the work of harvesting crops such as rice, barley, wheat, and soybeans, and is a name used to signify combination in that it simultaneously performs the cutting and conveying work of cutting and conveying crops such as rice, barley, wheat, and soybeans, and the threshing work of threshing the cut crops.

[0003] Such a combine includes a cutting unit and a threshing unit. The cutting unit is responsible for cutting crops and transporting them to the threshing unit. The threshing unit is responsible for threshing the crops transported by the cutting unit.

[0004] Here, if a load exceeding a preset standard load is applied to the cutting unit, such as when abnormal crops like weeds or foreign matter are introduced into the cutting unit or when an excessive amount of crops are introduced into the cutting unit, the cutting unit cannot operate normally due to clogging. To resolve this clogging phenomenon, the combine is provided with a cutting unit reverse rotation device capable of reversing the cutting unit.

[0005] A combine according to the prior art is implemented such that the reverse rotation device of the harvesting unit rotates at a constant rotational speed even if the degree of clogging of the harvesting unit varies depending on the type of crop or the condition of the crop. Therefore, since the rotational speed of the reverse rotation device of the harvesting unit in a combine according to the prior art is always maintained at a constant speed even when the working environment changes, there is a problem in that the responsiveness to changes in the working environment is reduced. Prior art literature

[65535] Japanese Patent Publication No. JP 2001-178246 (Published July 3, 2001) Korean Patent Publication No. 10-2017-0100296 (Published September 4, 2017) The problem to be solved

[0006] The present invention was devised to solve the problems described above and aims to provide a combine that can improve the responsiveness of the reverse rotation device of the harvesting unit to changes in the working environment. means of solving the problem

[0007] In order to solve the above problems, the present invention may include the following configuration.

[0008] A combine harvester according to the present invention may include: an engine coupled to a vehicle body to generate drive; a cutting unit for cutting crops; a threshing unit for threshing crops transported from the cutting unit; a transmission unit for performing a transmission in response to the drive generated by the engine; a forward transmission unit for operating the cutting unit in a forward direction so that crops are transported from the cutting unit to the threshing unit; and a reverse transmission unit for operating the cutting unit in a reverse direction opposite to the forward direction. The forward transmission unit may transmit the drive generated from the engine to the cutting unit so that the cutting unit operates in the forward direction. The reverse transmission unit may transmit the drive transmitted from the transmission unit to the cutting unit so that the speed at which the cutting unit operates in the reverse direction is adjusted. Effects of the invention

[0009] According to the present invention, the following effects can be achieved.

[0010] The present invention can be implemented to enable stable mowing operations in various working environments by improving responsiveness to changes in the working environment. Brief explanation of the drawing

[0011] FIG. 1 is a schematic perspective view of an example of a combine according to the present invention. FIG. 2 is a schematic perspective view showing a forward transmission unit and a reverse transmission unit installed in a combine according to the present invention. FIG. 3 is a schematic block diagram of a combine according to the present invention. FIG. 4 is a schematic power transmission diagram for a combine according to the present invention. FIG. 5 is a schematic power transmission diagram illustrating the forward transmission of drive in a combine according to the present invention. FIG. 6 is a schematic power transmission diagram illustrating the transmission of drive in the reverse direction in a combine according to the present invention. FIG. 7 is a schematic power transmission diagram for a comparative example in which a reverse selection mechanism is installed between a transmission unit and a reverse transmission unit. FIGS. 8 and 9 are schematic block diagrams for explaining the control unit and the sensing unit of a combine according to the present invention. Specific details for implementing the invention

[0012] Hereinafter, an embodiment of the combine according to the present invention will be described in detail with reference to the attached drawings.

[0013] Referring to FIG. 1, the combine harvester (1) according to the present invention is intended for harvesting crops such as rice, barley, wheat, and soybeans. The combine harvester (1) according to the present invention can perform a cutting operation to cut crops and a threshing operation to thresh the cut crops.

[0014] Referring to FIGS. 1 to 4, the combine (1) according to the present invention comprises an engine (10a) coupled to a vehicle body (11) to generate a drive, a cutting unit (2) for cutting crops, a threshing unit (3) for threshing crops transported from the cutting unit (2), a transmission unit (4) for performing a gear shift in response to the drive generated by the engine (10a), a forward transmission unit (5) for operating the cutting unit (2) in a forward direction so that crops are transported from the cutting unit (2) to the threshing unit (3), and a reverse transmission unit (6) for operating the cutting unit (2) in a reverse direction opposite to the forward direction.

[0015] The forward direction transmission unit (5) transmits the drive generated from the engine (10a) to the cutting unit (2) so that the cutting unit (2) operates in the forward direction. The forward direction is the direction from the cutting unit (2) toward the threshing unit (3), and may be the same direction as the direction in which crops cut from the cutting unit (2) move toward the threshing unit (3).

[0016] The reverse transmission unit (6) transmits the drive generated from the engine (10a) to the harvesting unit (2) so that the harvesting unit (2) operates in the reverse direction. The reverse direction is the direction from the threshing unit (3) toward the harvesting unit (2), and may be the opposite direction to the forward direction.

[0017] The reverse transmission unit (6) transmits the drive transmitted from the transmission unit (4) to the cutting unit (2) so that the speed at which the cutting unit (2) operates in the reverse direction is adjusted. Accordingly, the combine (1) according to the present invention is implemented such that when the degree of clogging of the cutting unit (2) varies depending on the type or condition of the crop, the operating speed of the cutting unit (2) is changed through the transmission unit (4). Therefore, the combine (1) according to the present invention is implemented such that cutting operations can be performed stably in various working environments by improving responsiveness to changes in the working environment.

[0018] Hereinafter, the above-mentioned cutting unit (2), the above-mentioned threshing unit (3), the above-mentioned transmission unit (4), the above-mentioned forward transmission unit (5), and the above-mentioned reverse transmission unit (6) will be described in detail with reference to the attached drawings. The solid arrows shown in FIGS. 5 to 7 schematically represent the transmission of the drive generated from the engine (10a) in the above-mentioned forward direction, and the dotted arrows schematically represent the transmission of the drive generated from the engine (10a) in the above-mentioned reverse direction.

[0019] Referring to FIGS. 1 to 9, the cutting unit (2) is intended for cutting crops. The cutting unit (2) can perform the function of harvesting crops such as rice, barley, wheat, and soybeans, and transporting the harvested crops toward the threshing unit (3). The cutting unit (2) is installed to be located at the front of the vehicle body (11, shown in FIG. 1). The vehicle body (11) functions as the main body of the combine (1) according to the present invention. The front corresponds to the same direction as the forward direction of the vehicle body (11) and may also correspond to the same direction as the reverse direction.

[0020] The above-mentioned mowing unit (2) can be operated by a driving unit (10) installed on the vehicle body (11). The driving unit (10) generates a drive to operate the combine (1) according to the present invention. The driving unit (10) may include the engine (10a), a drive transmission member (10b), a first drive driven mechanism (10c), and a second drive driven mechanism (10d).

[0021] The engine (10a) can be coupled to the vehicle body (11) to generate drive. The engine (10a) can be supported by the vehicle body (11).

[0022] The above drive transmission member (10b) is intended to transmit the drive generated from the engine (10a) to the forward transmission unit (5) and the reverse transmission unit (6). The above drive transmission member (10b) may be rotatably coupled to the engine (10a) so as to be able to rotate by the drive generated from the engine (10a).

[0023] The first drive driven mechanism (10c) is coupled to the drive transmission member (10b) so as to rotate together as the drive transmission member (10b) rotates. The first drive driven mechanism (10c) can transmit the drive generated from the engine (10a) to the forward transmission unit (5). The first drive driven mechanism (10c) can be installed to be connected to the forward transmission unit (5). The first drive driven mechanism (10c) can be connected to the forward transmission unit (5) by a connecting mechanism (not shown). The connecting mechanism can be implemented as a belt or a chain. The first drive driven mechanism (10c) can rotate the forward transmission unit (5) by rotating together as the drive transmission member (10b) rotates. Accordingly, the drive generated from the engine (10a) can be transmitted to the forward transmission unit (5). The first drive driven mechanism (10c) can be implemented as a pulley around which a belt or chain is wound. The first drive driven mechanism (10c) can be implemented as a multi-stage pulley. FIG. 4 illustrates the first drive driven mechanism (10c) being implemented as a two-stage pulley.

[0024] The second drive driven mechanism (10d) is coupled to the drive transmission member (10b) at a position spaced apart from the first drive driven mechanism (10c) so as to rotate together with the drive transmission member (10b) as the drive transmission member (10b) rotates. The second drive driven mechanism (10d) can transmit the drive generated from the engine (10a) to the reverse transmission unit (6). The second drive driven mechanism (10d) can be connected to the reverse transmission unit (6) by the connecting mechanism. The second drive driven mechanism (10d) can rotate the reverse transmission unit (6) by rotating together with the drive transmission member (10b) as the drive transmission member (10b) rotates. Accordingly, the drive generated from the engine (10a) can be transmitted to the reverse transmission unit (6). The second drive driven mechanism (10d) can be implemented as a pulley around which a belt or chain is wound. The above second driving driven mechanism (10d) can be implemented as a multi-stage pulley.

[0025] The second drive driven mechanism (10d) and the first drive driven mechanism (10c) can be combined together with the drive transmission member (10b). Accordingly, the combine (1) according to the present invention can be implemented to transmit the drive generated from the engine (10a) to the forward transmission unit (5) and the reverse transmission unit (6), respectively, by simply rotating one drive transmission member (10b).

[0026] Referring to FIGS. 2 to 7, the cutting unit (2) may include a conveying mechanism (2a), a reel mechanism (2b), an auger drum (2c), and an interlocking mechanism (2d).

[0027] The above transport mechanism (2a) is intended to transport crops collected by the above harvesting unit (2) to the above threshing unit (3). The above transport mechanism (2a) can be operated by a drive generated by the above engine (10a). The above transport mechanism (2a) can be installed to be located at the rear side for each of the above reel mechanism (2b) and the above auger drum (2c). The rear side corresponds to a direction opposite to the above front side, and may also correspond to the same direction as the above forward direction. The above transport mechanism (2a) can transport crops to the above threshing unit (3) using a conveyor belt (not shown).

[0028] The reel mechanism (2b) is intended for collecting crops, such as by standing crops upright. The crops collected by the reel mechanism (2b) can be transported to the threshing unit (3) via the auger drum (2c) and the transport mechanism (2a). The reel mechanism (2b) can be operated by a drive generated by the engine (10a). The reel mechanism (2b) can be installed so as to be positioned at the front side for each of the auger drum (2c) and the transport mechanism (2a).

[0029] The auger drum (2c) is intended to transport crops collected by the reel mechanism (2b) to the transport mechanism (2a). The auger drum (2c) can be operated by the drive generated by the engine (10a). The auger drum (2c) can be installed so as to be located at the rear side relative to the reel mechanism (2b) and also so as to be located at the front side relative to the transport mechanism (2a).

[0030] The above interlocking mechanism (2d) is installed to be connected to each of the above conveying mechanism (2a), the above auger drum (2c), and the above reel mechanism (2b). The above interlocking mechanism (2d) can operate the above conveying mechanism (2a), the above auger drum (2c), and the above reel mechanism (2b) in the same direction of operation. For example, when the above cutting unit (2) operates in the above forward direction by driving generated from the engine (10a), the above interlocking mechanism (2d) can rotate the above conveying mechanism (2a), the above auger drum (2c), and the above reel mechanism (2b) in a first direction of rotation so that the above conveying mechanism (2a), the above auger drum (2c), and the above reel mechanism (2b) all operate in the above forward direction. The above first direction of rotation may be a direction of rotation in which the above cutting unit (2) operates so that crops are transported in the above forward direction. When the cutting unit (2) operates in the reverse direction by the drive generated from the engine (10a), the interlocking mechanism (2d) can rotate the transport mechanism (2a), the auger drum (2c), and the reel mechanism (2b) in a second rotational direction so that the transport mechanism (2a), the auger drum (2c), and the reel mechanism (2b) all operate in the reverse direction. The second rotational direction may be a different rotational direction in which the cutting unit (2) operates to transport crops in the reverse direction. That is, the second rotational direction may be a rotational direction opposite to the first rotational direction. In this way, the combine (1) according to the present invention can be implemented such that the transport mechanism (2a), the reel mechanism (2b), and the auger drum (2c) all operate in the same direction by including the interlocking mechanism (2d).

[0031] Although not shown, the above-mentioned cutting unit (2) may include a cutting mechanism.

[0032] The above cutting mechanism is intended for cutting crops. The cutting mechanism may be operated by a drive generated by the engine (10a). The cutting mechanism may be installed so as to be located at the rear side relative to the auger drum (2c), and also installed so as to be located at the front side relative to the transport mechanism (2a).

[0033] A converter mechanism (not shown) may be connected to the cutting mechanism. The converter mechanism is responsible for converting rotational motion into linear motion. The converter mechanism may be operated by a drive generated from the engine (10a). When the cutting unit (2) rotates by the drive generated from the engine (10a), the cutting mechanism can cut crops while moving linearly by the converter. The converter mechanism may be implemented as a cam.

[0034] Referring to FIGS. 4 to 7, the cutting unit (2) may include a cutting connecting member (21).

[0035] The above cutting connection member (21) is connected to each of the forward direction transmission unit (5) and the reverse direction transmission unit (6). The cutting connection member (21) can be rotatably coupled to the transport mechanism (2a). The forward direction transmission unit (5) can operate the cutting unit (2) in the forward direction by rotating the cutting connection member (21) in the first rotational direction by drive generated from the engine (10a). The reverse direction transmission unit (6) can operate the cutting unit (2) in the reverse direction by rotating the cutting connection member (21) in the second rotational direction by drive generated from the engine (10a). In the following description, the cutting connecting member (21) is described based on the assumption that it is rotatably coupled to the conveying mechanism (2a), but it will be obvious to a person skilled in the art to which the present invention belongs that the cutting connecting member (21) is rotatably coupled to the reel mechanism (2b) or the auger drum (2c).

[0036] An interlocking mechanism (2d) may be coupled to the above cutting connecting member (21). Accordingly, when the cutting connecting member (21) rotates in the first rotational direction, the interlocking mechanism (2d) can rotate the conveying mechanism (2a), the reel mechanism (2b), and the auger drum (2c) all in the first rotational direction. When the cutting connecting member (21) rotates in the second rotational direction, the interlocking mechanism (2d) can rotate the conveying mechanism (2a), the reel mechanism (2b), and the auger drum (2c) all in the second rotational direction.

[0037] Referring to FIGS. 4 to 7, the cutting unit (2) may include a first cutting follower mechanism (22) and a second cutting follower mechanism (23).

[0038] The first mowing driven mechanism (22) is coupled to the mowing connecting member (21). The first mowing driven mechanism (22) may be coupled to the mowing connecting member (21) so as to rotate together with the mowing connecting member (21). The first mowing driven mechanism (22) may be installed to be connected to the forward direction transmission unit (5). Accordingly, when the forward direction transmission unit (5) rotates the first mowing driven mechanism (22) in the first rotational direction, the first mowing driven mechanism (22) and the mowing connecting member (21) may rotate together in the first rotational direction. The first mowing driven mechanism (22) may be implemented as a pulley around which a belt or chain is wound.

[0039] The second mowing driven mechanism (23) is coupled to the mowing connecting member (21) at a position spaced apart from the first mowing driven mechanism (22). The second mowing driven mechanism (23) may be coupled to the mowing connecting member (21) so as to rotate together with the mowing connecting member (21). The second mowing driven mechanism (23) may be installed to be connected to the reverse transmission unit (6). Thus, when the reverse transmission unit (6) rotates the second mowing driven mechanism (23) in the second rotational direction, the second mowing driven mechanism (23) and the mowing connecting member (21) may rotate together in the second rotational direction. The second mowing driven mechanism (23) may be implemented as a pulley around which a belt or chain is wound.

[0040] The second cutting driven mechanism (23) and the first cutting driven mechanism (22) are connected together to the cutting connecting member (21) at positions spaced apart from each other. Accordingly, the second cutting driven mechanism (23), the first cutting driven mechanism (22), and the cutting connecting member (21) can rotate together in the same rotational direction. For example, when the forward direction transmission unit (5) rotates the first cutting driven mechanism (22) in the first rotational direction, the second cutting driven mechanism (23) can rotate together in the first rotational direction as the cutting connecting member (21) rotates in the first rotational direction. When the reverse transmission unit (6) rotates the second cutting driven mechanism (23) in the second rotational direction, the first cutting driven mechanism (22) can rotate together with the cutting connecting member (21) in the second rotational direction as the cutting connected member (21) rotates in the second rotational direction.

[0041] Referring to FIGS. 1 to 3, the threshing unit (3) is intended to thresh crops transported from the harvesting unit (2). The threshing unit (3) may be operated by a drive generated from the engine (10a). The threshing unit (3) may be installed to be located at the rear side relative to the harvesting unit (2). The threshing unit (3) may include a threshing mechanism (31). The threshing mechanism (31) is responsible for the function of threshing crops transported from the transporting unit (2a). The threshing unit (3) may include a blower mechanism (32). The blower mechanism (32) may be coupled to the threshing mechanism (31). The blower mechanism (32) is responsible for the function of providing wind power to the threshing mechanism (31) to discharge the threshed crops to the outside of the threshing unit (3).

[0042] Referring to FIGS. 3 to 9, the transmission unit (4) performs a gear shift for the drive generated by the engine (10a). The transmission unit (4) can be used to adjust torque, speed, etc. as needed during the driving of the vehicle body (11) and the mowing operation of the mowing unit (2). The transmission unit (4) can be coupled to the vehicle body (11).

[0043] Referring to FIGS. 4 to 7, the transmission unit (4) may include a transmission mechanism (41) and a transmission transmission mechanism (42).

[0044] The transmission mechanism (41) is installed to be connected to the engine (10a) and performs a transmission for the drive generated by the engine (10a). Accordingly, the combine (1) according to the present invention can implement a control force that controls the speed at which the cutting unit (2) operates in the reverse direction through the transmission mechanism (41). The transmission mechanism (41) may be installed to be connected to the engine (10a) and the reverse transmission unit (6), respectively. The transmission mechanism (41) can perform a transmission for the vehicle body (11) by controlling the torque, speed, etc. of the drive generated by the engine (10a). An operator can perform driving and cutting operations of the vehicle body (11) by riding in the vehicle body (11) and operating the transmission mechanism (41). The transmission mechanism (41) may be implemented as a hydrostatic transmission (HST).

[0045] The above-mentioned transmission mechanism (42) transmits the drive transmitted from the above-mentioned transmission mechanism (41) to the above-mentioned reverse transmission unit (6). Accordingly, the above-mentioned transmission mechanism (42) can transmit the drive with the transmission performed to the above-mentioned reverse transmission unit (6) so that the reverse operating speed of the above-mentioned harvesting unit (2) is adjusted.

[0046] The above-mentioned transmission mechanism (42) can be installed to be connected to each of the above-mentioned transmission mechanism (41) and the above-mentioned reverse transmission unit (6). Accordingly, compared to conventional technology in which a separate control device is required to control the speed at which the above-mentioned harvesting unit (2) operates in the reverse direction, the combine (1) according to the present invention can be implemented to control the speed at which the above-mentioned harvesting unit (2) operates in the reverse direction using an existing transmission device that performs transmission for the vehicle body (11). Therefore, the combine (1) according to the present invention can reduce the equipment cost required to control the reverse operation speed of the above-mentioned harvesting unit (2).

[0047] Referring to FIGS. 4 to 7, the transmission mechanism (42) may include a transmission member (421) and a transmission output member (422).

[0048] The transmission member (421) is connected to the transmission mechanism (41). The transmission member (421) may be rotatably coupled to the transmission mechanism (41) so as to rotate by the drive transmitted from the transmission mechanism (41). The transmission member (421) may rotate in the same direction as the drive transmission member (10b). For example, if the drive transmission member (10b) rotates in the first rotational direction by the drive generated from the engine (10a), it may rotate in the first rotational direction by the drive transmitted from the transmission mechanism (41).

[0049] The above-mentioned transmission output member (422) is coupled to the transmission transmission member (421) so as to rotate together as the transmission transmission member (421) rotates. The above-mentioned transmission output member (422) can transmit the drive transmitted from the transmission mechanism (41) to the reverse transmission unit (6). The above-mentioned transmission output member (422) can be installed to be connected to the reverse transmission unit (6). The above-mentioned transmission output member (422) can rotate the reverse transmission unit (6) by rotating together as the transmission transmission member (421) rotates. The above-mentioned transmission output member (422) can be implemented as a pulley around which a belt or chain is wound. The above-mentioned transmission output member (422) can be implemented as a multi-stage pulley.

[0050] Referring to FIGS. 2 to 9, the forward transmission unit (5) operates the cutting unit (2) in the forward direction so that crops are transported from the cutting unit (2) to the threshing unit (3). The forward transmission unit (5) can transmit the drive generated from the engine (10a) to the cutting unit (2) so that the cutting unit (2) operates in the forward direction. The forward transmission unit (5) can be coupled to the vehicle body (11).

[0051] The forward transmission unit (5) is connected to each of the driving unit (10) and the cutting unit (2). The forward transmission unit (5) may be installed to be connected to each of the first driving driven mechanism (10c) and the first cutting driven mechanism (22). The forward transmission unit (5) may be connected to each of the first driving driven mechanism (10c) and the first cutting driven mechanism (22) through the connecting mechanism.

[0052] Referring to FIGS. 4 to 7, the forward transmission unit (5) may include a first forward mechanism (51) and a second forward mechanism (52).

[0053] The first forward direction mechanism (51) transmits the drive transmitted from the engine (10a) to the second forward direction mechanism (52) to operate the cutting unit (2) in the forward direction. The first forward direction mechanism (51) may be installed to be connected to the drive unit (10) and the second forward direction mechanism (52).

[0054] The first forward direction mechanism (51) is rotatably installed in the blower mechanism (32) to transmit the drive generated from the engine (10a) to the cutting unit (2). Accordingly, the combine (1) according to the present invention can be implemented to operate the cutting unit (2) as well as the blower mechanism (32) in the process of transmitting the drive generated from the engine (10a) to the cutting unit (2).

[0055] Referring to FIGS. 4 to 7, the first forward mechanism (51) may include a first forward input member (511), a first forward transmission member (512), and a first forward output member (513).

[0056] The first forward input member (511) is connected to the first driving driven mechanism (10c). The first forward input member (511) may be connected to the first driving driven mechanism (10c) by the connecting mechanism. The first forward input member (511) may rotate together with the first driving driven mechanism (10c) as the first driving driven mechanism (10c) rotates in the first rotational direction. Accordingly, the first forward input member (511) may receive the drive generated from the engine (10a) from the first driving driven mechanism (10c). The first forward input member (511) may be implemented as a pulley around which a belt or chain is wound. The first forward input member (511) may be implemented as a multi-stage pulley.

[0057] The first forward transmission member (512) is coupled to the first forward input member (511) so as to rotate together as the first forward input member (511) rotates. The first forward transmission member (512) can rotate together in the first rotational direction as the first forward input member (511) rotates in the first rotational direction. Accordingly, the first forward transmission member (512) can transmit the drive generated from the engine (10a) from the first forward input member (511) to the first forward output member (513). The first forward transmission member (512) can be rotatably coupled to the blower mechanism (32). The first forward transmission member (512) can function as an axis for the first forward mechanism (51) to rotate.

[0058] The first forward output member (513) is coupled to the first forward transmission member (512) at a position spaced apart from the first forward input member (511) so as to rotate together with the first forward transmission member (512) as the first forward transmission member (512) rotates. The first forward output member (513) can rotate together with the first forward transmission member (512) as the first forward transmission member (512) rotates in the first rotational direction. Accordingly, the first forward output member (513) can receive the drive generated from the engine (10a) from the first forward transmission member (512).

[0059] The first forward output member (513) is connected to the second forward mechanism (52). The first forward output member (513) may be connected to the second forward mechanism (52) by the connecting mechanism. The first forward output member (513) can rotate in the first rotational direction by means of a drive transmitted from the first forward transmission member (512), thereby rotating the second forward mechanism (52) in the first rotational direction. The first forward output member (513) may be implemented as a pulley around which a belt or chain is wound. The first forward output member (513) may be implemented as a multi-stage pulley.

[0060] Referring to FIGS. 4 to 7, the second forward direction mechanism (52) transmits the drive transmitted from the first forward direction mechanism (51) to the cutting unit (2) in order to operate the cutting unit (2) in the forward direction. The second forward direction mechanism (52) may be installed to be connected to the first forward direction mechanism (51) and the cutting unit (2).

[0061] The second forward direction mechanism (52) is rotatably installed on the threshing mechanism (31) to transmit the drive generated from the engine (10a) to the cutting unit (2). Accordingly, the combine (1) according to the present invention is implemented to operate the cutting unit (2) as well as the threshing mechanism (31) in the process of transmitting the drive generated from the engine (10a) to the cutting unit (2).

[0062] Referring to FIGS. 4 to 7, the second forward mechanism (52) may include a second forward input member (521), a second forward transmission member (522), and a second forward output member (523).

[0063] The second forward input member (521) is connected to the first forward output member (513). The second forward input member (521) can be connected to the first forward output member (513) by the connecting mechanism. The second forward input member (521) can rotate together with the first forward output member (513) as the first forward output member (513) rotates in the first rotational direction. Accordingly, the second forward input member (521) can receive the drive generated from the engine (10a) from the first forward output member (513). The second forward input member (521) can be implemented as a pulley around which a belt or chain is wound. The second forward input member (521) can be implemented as a multi-stage pulley.

[0064] The second forward transmission member (522) is coupled to the second forward input member (521) so as to rotate together as the second forward input member (521) rotates. The second forward transmission member (522) can rotate together in the first rotational direction as the second forward input member (521) rotates in the first rotational direction. Accordingly, the second forward transmission member (522) can transmit the drive generated from the engine (10a) from the second forward input member (521) to the second forward output member (523). The second forward transmission member (522) can be rotatably coupled to the threshing mechanism (31). The second forward transmission member (522) can function as an axis for the second forward mechanism (52) to rotate.

[0065] The second forward output member (523) is coupled to the second forward transmission member (522) at a position spaced apart from the second forward input member (521) so as to rotate together with the second forward transmission member (522) as the second forward transmission member (522) rotates. The second forward output member (523) can rotate together with the second forward transmission member (522) as the second forward transmission member (522) rotates in the first rotational direction. Accordingly, the second forward output member (523) can receive the drive generated from the engine (10a) from the second forward transmission member (522).

[0066] The second forward output member (523) is connected to the cutting unit (2). The second forward output member (523) may be connected to the first cutting driven mechanism (22) by the connecting mechanism. The second forward output member (523) can rotate in the first rotational direction by the drive transmitted from the second forward transmission member (522), thereby rotating the first cutting driven mechanism (22) in the first rotational direction. Accordingly, the cutting unit (2) can be operated in the forward direction. The second forward output member (523) may be implemented as a pulley around which a belt or chain is wound. The second forward output member (523) may be implemented as a multi-stage pulley.

[0067] Referring to FIGS. 2 to 9, the reverse transmission unit (6) operates the cutting unit (2) in the reverse direction. The reverse transmission unit (6) can transmit the drive generated from the engine (10a) to the cutting unit (2) so that the cutting unit (2) operates in the reverse direction. The reverse transmission unit (6) can be coupled to the vehicle body (11) at a position spaced apart from the forward transmission unit (5).

[0068] The reverse transmission unit (6) transmits the drive transmitted from the transmission unit (4) to the cutting unit (2) so that the speed at which the cutting unit (2) operates in the reverse direction is controlled. Accordingly, the combine (1) according to the present invention can change the operating speed of the cutting unit (2) through the transmission unit (4) when the degree of clogging of the crop on the cutting unit (2) varies depending on the type or condition of the crop. The reverse transmission unit (6) is connected to the transmission unit (4) and the cutting unit (2), respectively. The reverse transmission unit (6) can be installed to be connected to the transmission output member (422) and the second cutting driven mechanism (23), respectively. The reverse transmission unit (6) can be connected to the transmission output member (422) and the second cutting driven mechanism (23), respectively, through the connecting mechanism.

[0069] Referring to FIGS. 4 to 7, the reverse transmission unit (6) may include a reverse input mechanism (61) and a reverse output mechanism (62).

[0070] The reverse input mechanism (61) is installed to be connected to the transmission unit (4). The reverse input mechanism (61) can be connected to the transmission unit (4) through the connecting mechanism. The reverse input mechanism (61) can be connected to the transmission unit (4) and the reverse output mechanism (62), respectively. The reverse input mechanism (61) can transmit the drive transmitted from the transmission unit (4) to the reverse output mechanism (62).

[0071] Referring to FIGS. 4 to 7, the reverse input mechanism (61) may include a reverse input gear (611), a reverse input member (612), and an input transmission member (613).

[0072] The reverse input gear (611) receives the drive transmitted from the transmission unit (4). The reverse input gear (611) rotates in the first rotational direction by the drive transmitted from the transmission unit (4). The reverse input gear (611) is coupled to the input transmission member (613) at a position spaced apart from the reverse input member (612) so as to rotate together with the input transmission member (613) as the input transmission member (613) rotates. The reverse input gear (611) can rotate in the first rotational direction together with the input transmission member (613) as the input transmission member (613) rotates in the first rotational direction. As the reverse input gear (611) rotates in the first rotational direction, it can transmit the drive transmitted from the transmission unit (4) to the reverse output mechanism (62). The above reverse input gear (611) can transmit the drive transmitted from the transmission unit (4) to the reverse output mechanism (62) using a plurality of gears.

[0073] The reverse input member (612) is connected to the transmission output member (422). The reverse input member (612) can be connected to the transmission output member (422) by the connecting mechanism. The reverse input member (612) can rotate together with the transmission output member (422) as the transmission output member (422) rotates in the first rotation direction. Accordingly, the reverse input member (612) can receive the drive shifted from the transmission mechanism (41) from the transmission output member (422). The reverse input member (612) can be implemented as a pulley around which a belt or chain is wound. The reverse input member (612) can be implemented as a multi-stage pulley.

[0074] The input transmission member (613) is coupled to the reverse input member (612) so as to rotate together as the reverse input member (612) rotates. The input transmission member (613) can rotate together in the first rotation direction as the reverse input member (612) rotates in the first rotation direction. Accordingly, the input transmission member (613) can transmit the drive transmitted from the transmission unit (4) from the reverse input member (612) to the reverse input gear (611). The input transmission member (613) can function as an axis for the reverse input mechanism (61) to rotate.

[0075] Referring to FIGS. 4 to 7, the reverse output mechanism (62) is installed to be connected to the reverse input mechanism (61) and the cutting unit (2), respectively. The reverse output mechanism (62) can be connected to the cutting unit (2) through the connecting mechanism. The reverse output mechanism (62) can transmit the drive transmitted from the reverse input mechanism (61) to the cutting unit (2).

[0076] Referring to FIGS. 4 to 7, the reverse output mechanism (62) may include a reverse output gear (621), an output transmission member (622), and a reverse output member (623).

[0077] The reverse output gear (621) outputs the drive transmitted from the transmission unit (4) to the cutting unit (2). The reverse output gear (621) is engaged with the reverse input gear (611). Accordingly, the reverse output gear (621) can rotate in the second rotational direction as the reverse input gear (611) rotates in the first rotational direction. Therefore, the reverse output gear (621) can provide reverse rotational force for the cutting unit (2) to operate in the reverse direction. As the reverse output gear (621) rotates in the second rotational direction, it can transmit the drive transmitted from the reverse input mechanism (61) to the cutting unit (2). The reverse output gear (621) can transmit the drive transmitted from the reverse input mechanism (61) to the cutting unit (2) using a plurality of gears.

[0078] The output transmission member (622) is coupled to the reverse output gear (621) so as to rotate together as the reverse output gear (621) rotates. The output transmission member (622) can rotate together in the second rotational direction as the reverse output gear (621) rotates in the second rotational direction. Accordingly, the drive transmitted from the reverse input mechanism (61) can be transmitted from the reverse output gear (621) to the reverse output member (623). The output transmission member (622) can function as an axis on which the reverse output mechanism (62) rotates.

[0079] The reverse output member (623) is connected to the cutting unit (2). The reverse output member (623) may be connected to the second cutting driven mechanism (23) by the connecting mechanism. The reverse output member (623) can rotate in the second rotational direction by the drive transmitted from the output transmission member (622), thereby rotating the second cutting driven mechanism (23) in the second rotational direction. Accordingly, the cutting unit (2) can be operated in the reverse direction. The reverse output member (623) may be implemented as a pulley around which a belt or chain is wound. The reverse output member (623) may be implemented as a multi-stage pulley.

[0080] Referring to FIGS. 3 to 9, the combine (1) according to the present invention may include a selection part (7).

[0081] The selection unit (7) is intended to selectively transmit the drive generated by the engine (10a) to the harvesting unit (2) so that the harvesting unit (2) operates in either the forward direction or the reverse direction. Accordingly, the combine (1) according to the present invention can fundamentally prevent the harvesting unit (2) from operating in both the forward direction and the reverse direction simultaneously through the selection unit (7). Therefore, the combine (1) according to the present invention can prevent breakdowns or damage to the harvesting unit (2), etc., caused by operator error, thereby reducing the operating costs of the harvesting unit (2) and improving the operating rate of the harvesting unit (2). The selection unit (7) can be coupled to the vehicle body (11). The selection unit (7) can be implemented as a clutch.

[0082] Referring to FIGS. 3 to 9, the selection unit (7) may include a forward selection mechanism (71) and a reverse selection mechanism (72).

[0083] The forward direction selection mechanism (71) is intended to switch between a forward direction transmission state and a forward direction blocking state. The forward direction transmission state may be a state in which drive transmission occurs between the forward direction transmission unit (5) and the cutting unit (2). The forward direction selection mechanism (71) may switch to the forward direction transmission state by connecting the second forward direction output member (523) and the first cutting driven mechanism (22). The first cutting driven mechanism (22) and the cutting connecting member (21) may rotate together in the first rotational direction in the forward direction transmission state. Accordingly, the cutting unit (2) may operate in the forward direction. The forward direction blocking state may be a state in which drive transmission between the forward direction transmission unit (5) and the cutting unit (2) is blocked. The forward direction selection mechanism (71) can be switched to the forward direction blocking state by releasing the connection between the second forward direction output member (523) and the first cutting follower mechanism (22). The first cutting follower mechanism (22) and the cutting connection member (21) may not rotate together in the forward direction blocking state. Accordingly, the cutting unit (2) may not operate in the forward direction.

[0084] The above reverse selection mechanism (72) is intended to switch between a reverse transmission state and a reverse blocking state. The above reverse transmission state may be a state in which drive transmission occurs between the above reverse transmission unit (6) and the above cutting unit (2). The above reverse selection mechanism (72) may switch to the above reverse transmission state by connecting the above reverse output member (623) and the above second cutting driven mechanism (23). The above second cutting driven mechanism (23) and the above cutting connecting member (21) may rotate together in the above second rotational direction in the above reverse transmission state. Accordingly, the above cutting unit (2) may operate in the above reverse direction. The above reverse blocking state may be a state in which drive transmission between the above reverse transmission unit (6) and the above cutting unit (2) is blocked. The above reverse selection mechanism (72) can be switched to the reverse blocking state by releasing the connection between the reverse output member (623) and the second cutting driven mechanism (23). The second cutting driven mechanism (23) and the cutting connecting member (21) may not rotate together in the reverse blocking state. Accordingly, the cutting unit (2) may not operate in the reverse direction.

[0085] The above reverse selection mechanism (72) may be installed between the reverse transmission unit (6) and the cutting unit (2), connected to each of the reverse transmission unit (6) and the cutting unit (2). Accordingly, the combine (1) according to the present invention can be implemented to reduce the driving transmission length in the forward direction. This is explained in detail with reference to the attached drawings as follows. For ease of understanding, the explanation is based on the cutting unit (2) operating in the forward direction in the forward transmission state.

[0086] First, as illustrated in FIGS. 5 and 7, the drive generated from the engine (10a) can be transmitted to the first mowing driven mechanism (22) by passing through the drive transmission member (10b), the first drive driven mechanism (10c), the first forward input member (511), the first forward transmission member (512), the first forward output member (513), the second forward input member (521), the second forward transmission member (522), and the second forward output member (523). Accordingly, the first mowing driven mechanism (22) can rotate in the first rotational direction. Since the second mowing driven mechanism (23) is connected to the first mowing driven mechanism (22) through the mowing connecting member (21), it can rotate in the first rotational direction together with the first mowing driven mechanism (22).

[0087] Next, FIG. 7 is a comparative example in which the reverse selection mechanism (72) is installed between the transmission unit (4) and the reverse transmission unit (6), connected to each of the transmission unit (4) and the reverse transmission unit (6). In the comparative example, since the second cutting driven mechanism (23) is connected to the reverse output member (623), the second cutting driven mechanism (23) can rotate the reverse output mechanism (62) in the first rotational direction as it rotates in the first rotational direction. The reverse input mechanism (61) rotates in the second rotational direction as the reverse output mechanism (62) rotates in the first rotational direction. In this way, the comparative example is implemented such that the reverse selection mechanism (72) cannot block power transmission between the cutting unit (2) and the reverse transmission unit (6). Accordingly, the comparative example is implemented such that the driving transmission in the forward direction in the forward direction is carried out up to the reverse transmission unit (6) in the forward transmission state. Therefore, by increasing the driving transmission length in the forward direction, the comparative example may cause a loss of driving generated from the engine (10a).

[0088] Next, FIG. 5 is an embodiment in which the reverse selection mechanism (72) is installed between the reverse transmission unit (6) and the harvesting unit (2), and connected to each of the reverse transmission unit (6) and the harvesting unit (2). The embodiment is implemented such that even if the second harvesting driven mechanism (23) is connected to the reverse output member (623), the reverse selection mechanism (72) can block power transmission between the second harvesting driven mechanism (23) and the reverse output mechanism (62). Accordingly, the embodiment is implemented such that the drive transmission in the forward direction in the forward direction occurs only up to the harvesting unit (2). Therefore, compared to the comparative example, the embodiment can reduce the loss of drive generated from the engine (10a) by reducing the length of the drive transmission in the forward direction.

[0089] The combine (1) according to the present invention may be implemented to reduce the drive transmission length in the reverse direction. To this end, the forward selection mechanism (71) may be installed to be connected to each of the forward transmission unit (5) and the cutting unit (2) between the forward transmission unit (5) and the cutting unit (2). Accordingly, the combine (1) according to the present invention can reduce the loss of drive generated from the engine (10a) by reducing the drive transmission length in the reverse direction compared to a comparative example in which the forward selection mechanism (71) is installed to be connected to each of the drive unit (10) and the forward transmission unit (5).

[0090] Referring to FIGS. 8 and FIGS. 9, the combine (1) according to the present invention may include a control unit (8).

[0091] The above control unit (8) is for controlling the above selection unit (7). The above control unit (8) can control the above selection unit (7) to selectively transmit the drive generated by the above engine (10a) to the above harvesting unit (2). Accordingly, the above control unit (8) can operate the above harvesting unit (2) to be driven in either the forward direction or the above reverse direction.

[0092] Referring to FIG. 9, the control unit (8) may include a forward control module (81) and a reverse control module (82).

[0093] The forward direction control module (81) is intended to control the forward direction selection mechanism (71). When the forward direction is in the reverse direction transmission state, the forward direction control module (81) can switch the forward direction selection mechanism (71) to the forward direction blocking state to block the cutting unit (2) from operating in the forward direction. Accordingly, the combine (1) according to the present invention can implement a preventive force that prevents the cutting unit (2) from operating in the forward direction when the cutting unit (2) operates in the reverse direction. In the combine (1) according to one embodiment of the present invention, when the reverse direction blocking state is in the forward direction blocking state, the forward direction control module (81) may switch the forward direction selection mechanism (71) to the forward direction blocking state. Accordingly, the combine (1) according to one embodiment of the present invention can be implemented so that the cutting unit (2) does not operate in both the forward direction and the reverse direction. The forward direction control module (81) can be connected to the forward direction selection mechanism (71).

[0094] The reverse control module (82) is intended to control the reverse selection mechanism (72). When the forward transmission state is present, the reverse control module (82) can switch the reverse selection mechanism (72) to the reverse blocking state to block the cutting unit (2) from operating in the reverse direction. Accordingly, the combine (1) according to the present invention can implement a preventive force that prevents the cutting unit (2) from operating in the reverse direction when the cutting unit (2) operates in the forward direction. In the combine (1) according to one embodiment of the present invention, when the forward blocking state is present, the reverse control module (82) can switch the reverse selection mechanism (72) to the reverse blocking state. Accordingly, the combine (1) according to one embodiment of the present invention can be implemented so that the cutting unit (2) does not operate in both the forward direction and the reverse direction. The above reverse control module (82) can be connected to the above reverse selection mechanism (72).

[0095] Referring to FIGS. 8 and FIGS. 9, the combine (1) according to the present invention may include a sensing unit (9).

[0096] The above-mentioned sensing unit (9) detects the operating state of the above-mentioned cutting unit (2). The above-mentioned sensing unit (9) can detect that the above-mentioned forward transmission unit (5) is spinning idly in the above-mentioned cutting unit (2) as crops are clogged in the above-mentioned cutting unit (2). In this case, the above-mentioned control unit (8) can control the above-mentioned selection unit (7) so that the above-mentioned cutting unit (2) operates in the above-mentioned reverse direction according to the result detected by the above-mentioned sensing unit (9). The above-mentioned sensing unit (9) can detect that the clogging state of crops in the above-mentioned cutting unit (2) is released. In this case, the above-mentioned control unit (8) can control the above-mentioned selection unit (7) so that the above-mentioned cutting unit (2) operates in the above-mentioned forward direction again according to the result detected by the above-mentioned sensing unit (9). Accordingly, the combine (1) according to the present invention can achieve the following operational effects.

[0097] First, the combine (1) according to the present invention can be implemented so that crops are blocked through the detection unit (9) even if the operator does not directly visually confirm that crops are blocked in the cutting unit (2). Accordingly, the combine (1) according to the present invention can improve the ease of the task of detecting crops are blocked in the cutting unit (2).

[0098] Second, the combine (1) according to the present invention can release the blockage of the cutting unit (2) by operating the cutting unit (2) in the reverse direction through the control unit (8) immediately after the detection unit (9) detects that the crop is blocked in the cutting unit (2). Accordingly, the combine (1) according to the present invention can be implemented to shorten the time required from the point when the crop is blocked in the cutting unit (2) until the cutting unit (2) is operated again in the forward direction. Therefore, the combine (1) according to the present invention can increase the amount of crops harvested by increasing the time the cutting unit (2) is engaged in the harvesting operation.

[0099] Referring to FIG. 9, the sensing unit (9) may include a sensing module (91) and a signal generation module (92). Below, two embodiments regarding the sensing unit (9) will be examined sequentially.

[0100] <First Example>

[0101] The above detection module (91) detects that the forward transmission unit (5) rotates idly in the cutting unit (2) as crops become blocked in the cutting unit (2). The above detection module (91) can detect that the second forward output member (523) rotates idly in the first cutting follower mechanism (22) as crops become blocked in the cutting unit (2). The above detection module (91) can be connected to each of the cutting unit (2) and the control unit (8).

[0102] The signal generation module (92) generates a forward blocking signal and a reverse operation signal. The signal generation module (92) can generate the forward blocking signal to block the harvesting unit (2) from operating in the forward direction as the detection module (91) detects that the forward transmission unit (5) is spinning idly on the harvesting unit (2), and can also generate the reverse operation signal to cause the harvesting unit (2) to operate in the reverse direction. The forward blocking signal is a signal to block drive transmission between the forward transmission unit (5) and the harvesting unit (2). The reverse operation signal is a signal to enable drive transmission between the reverse transmission unit (6) and the harvesting unit (2). The signal generation module (92) can transmit the forward blocking signal to the forward control module (81) and also transmit the reverse operation signal to the reverse control module (82). The signal generation module (92) can be coupled to the vehicle body (11).

[0103] When the signal generation module (92) transmits the forward blocking signal and the reverse operation signal to the control unit (8), the forward control module (81) and the reverse control module (82) can be implemented as follows.

[0104] The forward control module (81) controls the selection unit (7) so that drive transmission between the forward transmission unit (5) and the harvesting unit (2) is blocked as the signal generation module (92) generates the forward blocking signal. The forward control module (81) can control the forward selection mechanism (71) so that it switches to the forward blocking state as it receives the forward blocking signal from the signal generation module (92). Accordingly, the combine (1) according to the present invention can prevent the crop from remaining in a clogged state in the harvesting unit (2).

[0105] The reverse control module (82) controls the selection unit (7) so that drive transmission occurs between the reverse transmission unit (6) and the harvesting unit (2) as the signal generation module (92) generates the reverse operation signal. The reverse control module (82) can control the reverse selection mechanism (72) to switch to the reverse transmission state as it receives the reverse operation signal from the signal generation module (92). Accordingly, the combine (1) according to the present invention can release the blockage of crops in the harvesting unit (2).

[0106] <Second Embodiment>

[0107] The detection module (91) detects that the blockage of crops in the cutting unit (2) is released as the cutting unit (2) operates in the reverse direction. In this case, the detection module (91) can detect that drive transmission occurs between the reverse output member (623) and the second cutting driven mechanism (23) as the cutting unit (2) operates in the reverse direction. The detection module (91) can be connected to each of the cutting unit (2) and the control unit (8).

[0108] The signal generation module (92) generates a reverse blocking signal and a forward operation signal. The signal generation module (92) can generate the reverse blocking signal to block the mowing unit (2) from operating in the reverse direction as the detection module (91) detects that the blockage state of the crop is released, and can also generate the forward operation signal to allow the mowing unit (2) to operate in the forward direction again. The reverse blocking signal is a signal to block drive transmission between the reverse transmission unit (6) and the mowing unit (2). The forward operation signal is a signal to enable drive transmission between the forward transmission unit (5) and the mowing unit (2). The signal generation module (92) can transmit the reverse blocking signal to the reverse control module (82) and the forward operation signal to the forward control module (81). The above signal generation module (92) can be coupled to the vehicle body (11).

[0109] When the signal generation module (92) transmits the reverse blocking signal and the forward operation signal to the control unit (8), the reverse control module (82) and the forward control module (81) can be implemented as follows.

[0110] The reverse control module (82) controls the selection unit (7) so that drive transmission between the reverse transmission unit (6) and the harvesting unit (2) is blocked as the signal generation module (92) generates the reverse blocking signal. The reverse control module (82) can control the reverse selection mechanism (72) to switch to the reverse blocking state as it receives the reverse blocking signal from the signal generation module (92). Accordingly, the combine (1) according to the present invention can prevent the harvester from continuing to operate in the reverse direction even after the crop blockage state in the harvesting unit (2) has been released. Therefore, the combine (1) according to the present invention can not only reduce power loss in the reverse direction but also reduce the possibility of failure or damage to the harvesting unit (2).

[0111] The forward direction control module (81) controls the selection unit (7) so that drive transmission occurs between the forward direction transmission unit (5) and the cutting unit (2) as the signal generation module (92) generates the forward direction operation signal. The forward direction control module (81) can control the forward direction selection mechanism (71) to switch to the forward direction transmission state as it receives the forward direction operation signal from the signal generation module (92). Accordingly, the combine (1) according to the present invention can reduce the time required to re-enter the cutting operation after the crop blockage state in the cutting unit (2) is released. Therefore, the combine (1) according to the present invention can increase the amount of crops cut by increasing the time the cutting unit (2) performs the cutting operation.

[0112] Hereinafter, an example of a combine (1) according to the present invention will be described with reference to the attached drawings.

[0113] Referring again to FIG. 1, a combine (1) according to an example of the present invention may include a driving unit (110). The driving unit (110) is responsible for the function of driving the combine (1) according to the present invention. The driving unit (110) may be installed to be located below the threshing unit (3).

[0114] Referring to FIG. 1, a combine (1) according to an example of the present invention may include a grain packaging unit (120). The grain packaging unit (120) is responsible for packaging grains as the combine (1) according to the present invention threshes crops. The grain packaging unit (120) may be installed to be located next to the threshing unit (3).

[0115] Referring to FIG. 1, a combine (1) according to an example of the present invention may include a driving unit (130). The driving unit (130) is provided with an operating unit (not shown) for driving the combine (1) according to the present invention. A worker can operate the cutting unit (2), the threshing unit (3), the transmission unit (4), and the driving unit (110) by riding in the driving unit (130) and operating the operating unit. The driving unit (130) may be installed to be located above the driving unit (110).

[0116] It will be obvious to those skilled in the art that the invention described above is not limited to the aforementioned embodiments and attached drawings, and that various substitutions, modifications, and changes are possible within the scope of the technical concept of the invention. Explanation of the symbols

[0117] 1 : Combine 2 : Cutting unit 3 : Threshing unit 4 : Speed ​​control unit 5 : Forward transmission unit 6 : Reverse transmission unit 7 : Selection unit 8 : Control unit 9 : Detector 10 : Driving unit

Claims

Claim 1 An engine (10a) coupled to a vehicle body (11) to generate drive; a cutting unit (2) for cutting crops; a threshing unit (3) for threshing crops transported from the cutting unit (2); a transmission unit (4) for performing a gear shift in response to the drive generated by the engine (10a); a forward direction transmission unit (5) for operating the cutting unit (2) in a forward direction so that crops are transported from the cutting unit (2) to the threshing unit (3) — the forward direction is the direction from the cutting unit (2) to the threshing unit (3) —; a reverse direction transmission unit (6) for operating the cutting unit (2) in a reverse direction opposite to the forward direction — the reverse direction is the direction from the threshing unit (3) to the cutting unit (2) —; The apparatus includes a selection unit (7) for selectively transmitting a drive generated by the engine (10a) to the cutting unit (2) so that the cutting unit (2) operates in either the forward direction or the reverse direction, and the forward direction transmission unit (5) transmits a drive generated from the engine (10a) to the cutting unit (2) so that the cutting unit (2) operates in the forward direction, and the reverse direction transmission unit (6) transmits a drive transmitted from the transmission unit (4) to the cutting unit (2) so that the speed at which the cutting unit (2) operates in the reverse direction is controlled, and the transmission unit (4) includes a transmission mechanism (41) installed to be connected to the engine (10a) to perform a transmission of the drive generated by the engine (10a), and a transmission transmission mechanism (42) installed to be connected to the transmission mechanism (41) and the reverse direction transmission unit (6) respectively to transmit a drive transmitted from the transmission mechanism (41) to the reverse direction transmission unit (6). A combine characterized by the following. Claim 2 delete Claim 3 A combine according to claim 1, wherein the selection unit (7) comprises: a forward selection mechanism (71) for switching between a forward transmission state in which drive transmission occurs between the forward transmission unit (5) and the cutting unit (2) and a forward blocking state in which drive transmission occurs between the forward transmission unit (5) and the cutting unit (2); and a reverse selection mechanism (72) for switching between a reverse transmission state in which drive transmission occurs between the reverse transmission unit (6) and the cutting unit (2) and a reverse blocking state in which drive transmission occurs between the reverse transmission unit (6) and the cutting unit (2). Claim 4 A combine according to claim 3, further comprising a control unit (8) for controlling the selection unit (7), wherein the control unit (8) comprises a forward control module (81) that switches the forward selection mechanism (71) to the forward blocking state so as to block the cutting unit (2) from operating in the forward direction when the reverse transmission state is present. Claim 5 A combine according to claim 3, further comprising a control unit (8) for controlling the selection unit (7), wherein the control unit (8) comprises a reverse control module (82) that switches the reverse selection mechanism (72) to the reverse blocking state to block the cutting unit (2) from operating in the reverse direction when the forward transmission state is present. Claim 6 A combine according to paragraph 3, characterized in that the reverse selection mechanism (72) is installed between the reverse transmission unit (6) and the cutting unit (2), and is connected to each of the reverse transmission unit (6) and the cutting unit (2). Claim 7 A combine according to paragraph 3, characterized in that the forward direction selection mechanism (71) is installed between the forward direction transmission unit (5) and the cutting unit (2), and is connected to each of the forward direction transmission unit (5) and the cutting unit (2). Claim 8 A combine according to claim 1, further comprising: a sensing unit (9) for sensing the operating state of the cutting unit (2); and a control unit (8) for controlling the selection unit (7) so that the cutting unit (2) operates in the reverse direction or the forward direction according to the result detected by the sensing unit (9). Claim 9 A combine according to claim 8, wherein the sensing unit (9) includes a sensing module (91) that detects that the forward transmission unit (5) rotates idly in the cutting unit (2) as crops are blocked in the cutting unit (2); and a signal generating module (92) that generates a forward blocking signal to block drive transmission between the forward transmission unit (5) and the cutting unit (2) and a reverse operation signal to enable drive transmission between the reverse transmission unit (6) and the cutting unit (2) as the sensing module (91) detects that the forward transmission unit (5) rotates idly in the cutting unit (2). Claim 10 A combine according to claim 9, wherein the control unit (8) comprises: a forward control module (81) that controls the selection unit (7) so that drive transmission between the forward transmission unit (5) and the cutting unit (2) is blocked as the signal generation module (92) generates the forward blocking signal; and a reverse control module (82) that controls the selection unit (7) so that drive transmission between the reverse transmission unit (6) and the cutting unit (2) is made as the signal generation module (92) generates the reverse operation signal. Claim 11 A combine according to claim 8, wherein the sensing unit (9) includes a sensing module (91) that detects that the blockage of crops in the cutting unit (2) is released as the cutting unit (2) operates in the reverse direction; and a signal generating module (92) that generates a reverse blocking signal to block drive transmission between the reverse transmission unit (6) and the cutting unit (2) and a forward operation signal to enable drive transmission between the forward transmission unit (5) and the cutting unit (2) as the sensing module (91) detects that the blockage of crops is released. Claim 12 A combine according to claim 11, wherein the control unit (8) comprises: a reverse control module (82) that controls the selection unit (7) so that drive transmission between the reverse transmission unit (6) and the cutting unit (2) is blocked as the signal generation module (92) generates the reverse blocking signal; and a forward control module (81) that controls the selection unit (7) so that drive transmission between the forward transmission unit (5) and the cutting unit (2) is made as the signal generation module (92) generates the forward operation signal. Claim 13 delete Claim 14 A combine according to claim 1, wherein the reverse transmission unit (6) comprises a reverse input mechanism (61) installed to be connected to the transmission unit (4), and a reverse output mechanism (62) installed to be connected to each of the reverse input mechanism (61) and the cutting unit (2), wherein the reverse input mechanism (61) comprises a reverse input gear (611) that rotates in a first rotational direction by a drive transmitted from the transmission unit (4), and the reverse output mechanism (62) comprises a reverse output gear (621) that is engaged with the reverse input gear (611) to rotate in a second rotational direction opposite to the first rotational direction as the reverse input gear (611) rotates in the first rotational direction. Claim 15 A combine according to claim 1, wherein the harvesting unit (2) comprises: a reel mechanism (2b) for collecting crops; an auger drum (2c) for transporting crops collected by the reel mechanism (2b); a transport mechanism (2a) for transporting crops to the threshing unit (3); and an interlocking mechanism (2d) installed to be connected to each of the transport mechanism (2a), the auger drum (2c), and the reel mechanism (2b) to operate the transport mechanism (2a), the auger drum (2c), and the reel mechanism (2b) in the same direction of operation.

Images