Transmission control device of returning machine

Abstract

The utility model provides a field returning machine transmission control device which comprises a field returning machine, a first transmission wheel and a clutch control stay wire, an input wheel is arranged on the field returning machine, and the input wheel is connected with the first transmission wheel through a first transmission belt; a first rocker arm is hinged to the field returning machine, a first tensioning wheel is arranged at one end of the first rocker arm, the other end of the first rocker arm is connected with one end of the clutch control stay wire, and the other end of the clutch control stay wire is connected with a stay wire handle; when the clutch control stay wire is tensioned, the first rocker arm can be driven to rotate around the hinge shaft of the first rocker arm, and the first rocker arm can drive the first tensioning wheel to press the first transmission belt. According to the utility model, the pull wire is controlled by the clutch to drive the first rocker arm to rotate and drive the first tensioning wheel to compress or loosen the first transmission belt, so that the power of the returning machine can be flexibly controlled, and the power of the returning machine can be effectively cut off when returning operation is not needed; the operation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of a harvester returning a field to a field, in particular to a transmission control device for a harvester returning a field to a field. Background Art

[0002] When corn is harvested, a lot of straw is produced. The straw has recycling value, such as being processed into feed for livestock breeding such as cattle and sheep, or it can be crushed and returned to the field. According to the different needs of recycling or crushing and returning to the field, straw balers or field return machines are used respectively.

[0003] At present, the straw recycling is generally achieved by using a machine that can harvest both stalks and ears and has a straw baler. When using a straw baler for recycling, a field return machine is not needed for field return operations. However, in the harvester model that can harvest both stalks and ears, the field return machine is directly connected to the engine through a transmission belt, and the transmission belt is in a constant tension state. When the engine is started, the field return machine will rotate with the engine. Therefore, during the harvesting operation, if field return operations are not required, the power device such as the transmission belt of the field return machine needs to be disassembled, which is labor-intensive, cumbersome to operate, and complicated to disassemble and assemble.

[0004] Some models are equipped with a separate clutch control handle for the field returner drive belt. Due to the limitation of the overall machine structure, the field returner control clutch is located at the end of the field returner transmission. When the engine is started, the transition drive shaft of the field returner is in a normal rotating state, which reduces the life of the drive shaft and bearings, and has a high risk factor. Utility Model Content

[0005] The technical problem to be solved by the utility model is: how to effectively cut off the power when the field returning operation is not in progress and how to facilitate the operation.

[0006] The technical solution of the utility model to solve the above technical problems is as follows:

[0007] The utility model provides a transmission control device for a field return machine, comprising a field return machine, a first transmission wheel, and a clutch control cable, wherein the field return machine is provided with an input wheel, and the input wheel is connected to the first transmission wheel through a first transmission belt; a first rocker arm is hinged on the field return machine, one end of the first rocker arm is provided with a first tensioning wheel, the other end of the first rocker arm is connected to one end of the clutch control cable, and the other end of the clutch control cable is connected to a cable handle; when the clutch control cable is tightened, it can drive the first rocker arm to rotate around its own hinge axis, and the first rocker arm can drive the first tensioning wheel to press the first transmission belt.

[0008] The beneficial effects of the utility model are:

[0009] By adopting the utility model, the first rocker arm is driven to rotate through the clutch control cable, and the first rocker arm compresses or loosens the first transmission belt through the first tensioning wheel, so as to flexibly control the power of the field returning machine and effectively cut off the power of the field returning machine when field returning operation is not needed; the cable handle for operating the clutch control cable can be arranged in the cab, which is easy to operate and saves the work of disassembling and assembling the field returning machine.

[0010] On the basis of the above technical solution, the present invention can also be improved as follows.

[0011] Furthermore, it also includes an engine output wheel and a transition shaft, the engine output wheel is transmission-connected to the transition shaft, and the first transmission wheel is arranged on the transition shaft.

[0012] The transition shaft facilitates the increase of installation space, thus avoiding the first rocker arm and the first tensioning wheel being restricted by the installation space.

[0013] Furthermore, a second transmission wheel is provided on the transition shaft, and the second transmission wheel is connected to the engine output wheel through a second transmission belt; the engine output wheel is also connected to the whole machine output pulley through a third transmission belt; it also includes a second rocker arm and a third rocker arm, and a second tensioning wheel is provided at one end of the second rocker arm, and when the second rocker arm swings, it can drive the second tensioning wheel to tighten the second transmission belt; a third tensioning wheel is provided at one end of the third rocker arm, and when the third rocker arm swings, it can drive the third tensioning wheel to tighten the third transmission belt.

[0014] The second rocker arm controls the second tensioning wheel to compress the second transmission belt, and the third rocker arm controls the third tensioning wheel to compress the third transmission belt, so as to control the power connection or disconnection. When the field return machine is not needed to work, the power of the transition shaft can be cut off to avoid the transition shaft from being in a constant rotation state, thereby improving the service life and safety.

[0015] Furthermore, it also includes a fourth rocker arm, which is connected to the third rocker arm through a first pull rod, and the two ends of the first pull rod are respectively hinged to the fourth rocker arm and the third rocker arm (17), one end of the fourth rocker arm is hinged to the second pull rod, one end of the second pull rod passes through the second rocker arm and is provided with a clamping piece, and one end of the clamping piece abuts against the second rocker arm.

[0016] The tightening or loosening of the second transmission belt and the third transmission belt can be controlled in linkage. When no operation is needed, the power of the operating mechanisms such as the field return machine and the straw baler can be cut off in linkage, which increases the service life of the whole machine and facilitates operation.

[0017] Furthermore, when the third rocker arm swings and drives the third tensioning wheel to compress the third transmission belt, the fourth rocker arm swings and pulls the second pull rod, the second pull rod drives the clamping piece to press the second rocker arm, and the second rocker arm swings and compresses the second transmission belt under the pressure of the clamping piece.

[0018] The second transmission belt and the third transmission belt are linked to be tightened and loosened at the same time, which is convenient for operation.

[0019] Furthermore, one end of the second rocker arm is hinged with a telescopic rod, and the telescopic rod can drive the second rocker arm to swing when it is extended or retracted.

[0020] It is convenient to control the swing of the second rocker arm and the third rocker arm in linkage, and the operation is convenient.

[0021] Furthermore, the clamping member is a spring, which is sleeved on the second pull rod, with one end of the spring connected to the second pull rod and the other end abutting against the second rocker arm.

[0022] The second transmission belt is compressed by the elastic force of the spring, which reduces the impact force during power coupling, and the compression force can be adjusted to increase the life of the device. In addition, the operator can overcome the elastic force of the spring to independently operate the second rocker arm to swing and compress the second transmission belt, and the field return machine can be operated independently.

[0023] Furthermore, the axis of the engine output wheel, the axis of the whole machine output pulley, and the axis of the third tensioning wheel are parallel to each other.

[0024] It is convenient to drive the third tensioning wheel to press the third transmission belt when the third rocker arm swings, so as to avoid jamming and have good reliability.

[0025] Furthermore, the axis of the engine output wheel, the axis of the second transmission wheel, and the axis of the second tensioning wheel are parallel to each other.

[0026] It is convenient to drive the second tensioning wheel to press the second transmission belt when the second rocker arm swings, so as to avoid jamming and have good reliability.

[0027] Furthermore, the hinge axis of the first rocker arm, the axis of the first tensioning wheel and the axis of the input wheel are parallel to each other.

[0028] It is convenient to drive the first tensioning wheel to press the first transmission belt on the input wheel when the first rocker arm rotates, so as to avoid jamming and have good reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of the utility model.

[0030] Figure 2 It is a structural diagram of the gear train connection relationship.

[0031] Figure 3 It is a three-dimensional schematic diagram of the gear train connection relationship.

[0032] In the accompanying drawings, the technical features represented by the reference numerals are as follows:

[0033] 1-field returner; 2-first transmission wheel; 3-input wheel; 4-first rocker arm; 5-first tensioning wheel; 6-clutch control cable; 7-cable handle; 8-first transmission belt; 9-engine output wheel; 10-transition shaft; 11-second transmission wheel; 12-second transmission belt; 13-machine output pulley; 14-third transmission belt; 15-second rocker arm; 16-second tensioning wheel; 17-third rocker arm; 18-third tensioning wheel; 19-fourth rocker arm; 20-first pull rod; 21-second pull rod; 22-pressing piece; 23-telescopic rod. DETAILED DESCRIPTION

[0034] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0035] This utility model refers to Figure 1-3 .

[0036] The utility model provides a transmission control device for a field return machine, comprising a field return machine 1, a first transmission wheel 2, and a clutch control cable 6. The field return machine 1 is provided with an input wheel 3, and the input wheel 3 is connected to the first transmission wheel 2 through a first transmission belt 8; a first rocker arm 4 is hinged on the field return machine 1, one end of the first rocker arm 4 is provided with a first tensioning wheel 5, the other end of the first rocker arm 4 is connected to one end of the clutch control cable 6, and the other end of the clutch control cable 6 is connected to a cable handle 7; when the clutch control cable 6 is tightened, it can drive the first rocker arm 4 to rotate around its own hinge axis, and the first rocker arm 4 can drive the first tensioning wheel 5 to press the first transmission belt 8.

[0037] principle:

[0038] The field return machine 1 and its own input wheel 3 are existing technologies on harvesters. The first transmission wheel 2 can be the output wheel on the engine, or it can be the transition wheel between the engine and the field return machine 1. When the engine is started, if the first transmission belt 8 is in a loose state, the field return machine 1 does not work. The pull wire handle 7 can be installed in the cab. When the field return machine 1 is needed to work, it is only necessary to operate the pull wire handle 7, and the pull wire handle 7 drives the clutch control cable 6 to be tightened, and the clutch control cable 6 pulls the first rocker arm 4 to rotate around its own hinge axis, so that the first tensioning wheel 5 is pressed against the first transmission belt 8 with the help of the tensioning force of the clutch control cable 6, so that the field return machine 1 obtains power. When the field return machine 1 is not needed to work, it is only necessary to operate the pull wire handle 7 to relax the clutch control cable 6, so that the first rocker arm 4 loses the leverage, and the first tensioning wheel 5 releases the first transmission belt 8, effectively cutting off the power of the field return machine 1.

[0039] In summary, by adopting the utility model, the first rocker arm 4 is driven to rotate through the clutch control cable 6, and the first rocker arm 4 tightens or loosens the first transmission belt 8 through the first tensioning wheel 5, so as to flexibly control the power of the field return machine 1 and effectively cut off the power of the field return machine 1 when the field return operation is not needed; the cable handle 7 for operating the clutch control cable 6 can be arranged in the cab, which is easy to operate and eliminates the disassembly and assembly work of the field return machine 1.

[0040] Furthermore, it also includes an engine output wheel 9 and a transition shaft 10 , the engine output wheel 9 is transmission-connected to the transition shaft 10 , and the first transmission wheel 2 is arranged on the transition shaft 10 .

[0041] The transition shaft 10 is used to increase the installation space, thereby preventing the first rocker arm 4 and the first tensioning wheel 5 from being restricted by the installation space.

[0042] Further, such as Figure 1-3 As shown: the transition shaft 10 is provided with a second transmission wheel 11, and the second transmission wheel 11 is connected to the engine output wheel 9 through a second transmission belt 12; the engine output wheel 9 is also connected to the whole machine output pulley 13 through a third transmission belt 14; it also includes a second rocker arm 15 and a third rocker arm 17, one end of the second rocker arm 15 is provided with a second tensioning wheel 16, and when the second rocker arm 15 swings, it can drive the second tensioning wheel 16 to press the second transmission belt 12; one end of the third rocker arm 17 is provided with a third tensioning wheel 18, and when the third rocker arm 17 swings, it can drive the third tensioning wheel 18 to press the third transmission belt 14.

[0043] Note: The output pulley 13 of the whole machine is the existing technology on the harvester, and its function is to transmit the power of the engine to other mechanisms such as the straw baler. During installation, the middle part of the second rocker arm 15 and the middle part of the third rocker arm 17 can be hinged on the frame of the harvester. The name of the rocker arm indicates its hinged structure. Since it is irrelevant to the technical problem of the utility model, it is not described in detail.

[0044] The second rocker arm 15 controls the second tensioning wheel 16 to press the second transmission belt 12, and the third rocker arm 17 controls the third tensioning wheel 18 to press the third transmission belt 14, so as to control the power connection or disconnection. When the field return machine 1 is not needed to work, the power of the transition shaft 10 can be cut off to avoid the transition shaft 10 being in a constant rotation state, thereby improving the service life and safety.

[0045] Furthermore, it also includes a fourth rocker arm 19, which is connected to the third rocker arm 17 via a first pull rod 20, and both ends of the first pull rod 20 are hinged to the fourth rocker arm 19 and the third rocker arm 17 respectively. One end of the fourth rocker arm 19 is hinged to a second pull rod 21, and one end of the second pull rod 21 passes through the second rocker arm 15 and is provided with a clamping piece 22, and one end of the clamping piece 22 abuts against the second rocker arm 15.

[0046] Note: When the third rocker arm 17 swings, it can drive the third tensioning wheel 18 to tighten or loosen the third transmission belt 14; at the same time, the third rocker arm 17 pulls the second rocker arm to swing through the second pull rod 21, so that one end of the second rocker arm pulls the second pull rod 21, and the second pull rod 21 drives the clamping piece 22 to move toward the second rocker arm 15, so that the clamping piece 22 applies pressure to the second rocker arm 15, so that the second rocker arm 15 drives the second tensioning wheel 16 to tighten the second transmission belt 12.

[0047] The tightening or loosening of the second transmission belt 12 and the third transmission belt 14 is controlled in linkage. When no operation is needed, the power of the operating mechanisms such as the field return machine 1 and the straw baler can be cut off in linkage, thereby increasing the service life of the whole machine and facilitating operation.

[0048] Furthermore, when the third rocker arm 17 swings and drives the third tensioning wheel 18 to press the third transmission belt 14, the fourth rocker arm 19 swings and pulls the second pull rod 21, the second pull rod 21 drives the clamping piece 22 to press the second rocker arm 15, and the second rocker arm 15 swings under the pressure of the clamping piece 22 and presses the second transmission belt 12.

[0049] Note: The linkage direction between the second rocker arm 15 and the third rocker arm 17 is defined, and the connection position between the second pull rod 21 and the second rocker arm 15 and the connection position between the second pull rod 21 and the third rocker arm 17 follow the linkage direction.

[0050] When convenient, the second transmission belt 12 and the third transmission belt 14 are linked to be tightened and linked to be loosened, which is convenient to operate.

[0051] Furthermore, a telescopic rod 23 is hinged at one end of the second rocker arm 15, and the telescopic rod 23 can drive the second rocker arm 15 to swing when it is extended or retracted.

[0052] Note: The fixed end of the telescopic rod 23 can be hinged to the body of the harvester. Through the hinge structure, the swing direction of the second rocker arm 15 can be arbitrarily controlled by telescoping. When the telescopic rod 23 is extended or retracted, it can drive the second rocker arm 15 to swing, which limits the telescopic direction of the telescopic rod 23 to deviate from the hinge axis of the second rocker arm 15. The position of the telescopic rod 23 can be arbitrarily arranged, and it can drive the second rocker arm 15 to swing.

[0053] It is convenient to control the swing of the second rocker arm 15 and the third rocker arm 17 in linkage, and the operation is convenient.

[0054] Furthermore, the pressing member 22 is a spring, which is sleeved on the second pull rod 21 , with one end of the spring connected to the second pull rod 21 and the other end abutting against the second rocker arm 15 .

[0055] The second transmission belt 12 is compressed by the elastic force of the spring, which reduces the impact force during power coupling, and the compression force can be adjusted to increase the life of the device. In addition, the operator can overcome the elastic force of the spring to independently operate the second rocker arm 15 to swing and compress the second transmission belt 12, and the field return machine 1 can be operated independently.

[0056] Furthermore, the axis of the engine output wheel 9, the axis of the whole machine output pulley 13, and the axis of the third tensioning wheel 18 are parallel to each other.

[0057] It is convenient to drive the third tensioning wheel 18 to press the third transmission belt 14 when the third rocker arm 17 swings, so as to avoid jamming and have good reliability.

[0058] Furthermore, the axis of the engine output wheel 9, the axis of the second transmission wheel 11, and the axis of the second tensioning wheel 16 are parallel to each other.

[0059] It is convenient to drive the second tensioning wheel 16 to press the second transmission belt 12 when the second rocker arm 15 swings, so as to avoid jamming and have good reliability.

[0060] Furthermore, the hinge axis of the first rocker arm 4, the axis of the first tensioning wheel 5 and the axis of the input wheel 3 are parallel to each other.

[0061] It is convenient to drive the first tensioning wheel 5 to press the first transmission belt 8 on the input wheel 3 when the first rocker arm 4 rotates, so as to avoid jamming and have good reliability.

[0062] In the description of the present invention, it should be understood that if there are descriptive terms indicating orientation, direction or positional relationship, such as: "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the orientation or positional relationship indicated in this specification is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of understanding the present invention and simplifying the description, and does not indicate or imply that the referred part, element or whole must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0063] In addition, if there are order description terms, such as "first", "second", etc., their purpose in this specification is to facilitate understanding or simplify description. For example, in order to distinguish multiple technical features of the same type or function, but they have to be mentioned separately, this specification may use prefix or suffix order description terms to distinguish them. Therefore, it cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0064] In the present invention, if there are descriptive terms with subsidiary or connecting meanings, for example, a first feature is "on" or "below" a second feature, unless otherwise clearly specified and limited, it should not be understood in a restrictive manner. For example, "on" or "below" may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above descriptive terms in the present invention can be understood according to the specific circumstances, the context, the coherence of the context, etc.

[0065] Furthermore, the first feature being “above”, “above”, and “above” the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being “below”, “below”, and “below” the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0066] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine and combine the different embodiments, examples and features of the different embodiments and examples described in this specification without contradiction, and these combinations or combinations shall all fall within the scope summarized by the utility model.

[0067] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are illustrative and cannot be construed as limitations on the present invention. A person skilled in the art can change, modify, replace and modify the above embodiments within the scope of information available from public channels and in combination with the technical inspiration provided by the present application documents.

Claims

1. A transmission control device for a field returning machine, characterized in that: The invention comprises a field return machine (1), a first transmission wheel (2), and a clutch control cable (6); the field return machine (1) is provided with an input wheel (3), and the input wheel (3) is connected to the first transmission wheel (2) via a first transmission belt (8); a first rocker arm (4) is hingedly connected to the field return machine (1), one end of the first rocker arm (4) is provided with a first tensioning wheel (5), the other end of the first rocker arm (4) is connected to one end of the clutch control cable (6), and the other end of the clutch control cable (6) is connected to a cable handle (7); when the clutch control cable (6) is tightened, it can drive the first rocker arm (4) to rotate around its own hinge axis, and the first rocker arm (4) can drive the first tensioning wheel (5) to press the first transmission belt (8) tightly.

2. The transmission control device for a field returning machine according to claim 1, characterized in that: It also comprises an engine output wheel (9) and a transition shaft (10), wherein the engine output wheel (9) is transmission-connected to the transition shaft (10), and the first transmission wheel (2) is arranged on the transition shaft (10).

3. The transmission control device for the field returning machine according to claim 2, characterized in that: The transition shaft (10) is provided with a second transmission wheel (11), and the second transmission wheel (11) is connected to the engine output wheel (9) via a second transmission belt (12); the engine output wheel (9) is also connected to the whole machine output pulley (13) via a third transmission belt (14); and further comprises a second rocker arm (15) and a third rocker arm (17); one end of the second rocker arm (15) is provided with a second tensioning wheel (16), and when the second rocker arm (15) swings, the second tensioning wheel (16) can be driven to press the second transmission belt (12); one end of the third rocker arm (17) is provided with a third tensioning wheel (18), and when the third rocker arm (17) swings, the third tensioning wheel (18) can be driven to press the third transmission belt (14).

4. The transmission control device for the field returning machine according to claim 3, characterized in that: It also includes a fourth rocker arm (19), the fourth rocker arm (19) and the third rocker arm (17) are connected via a first pull rod (20), the two ends of the first pull rod (20) are respectively hinged to the fourth rocker arm (19) and the third rocker arm (17), one end of the fourth rocker arm (19) is hinged to a second pull rod (21), one end of the second pull rod (21) passes through the second rocker arm (15) and is provided with a clamping member (22), one end of the clamping member (22) abuts against the second rocker arm (15).

5. The transmission control device for the field returning machine according to claim 4, characterized in that: When the third rocker arm (17) swings and drives the third tensioning wheel (18) to press the third transmission belt (14), the fourth rocker arm (19) swings and pulls the second pull rod (21), and the second pull rod (21) drives the pressing member (22) to press the second rocker arm (15), and the second rocker arm (15) swings under the pressure of the pressing member (22) and presses the second transmission belt (12).

6. The transmission control device for a field returning machine according to claim 4, characterized in that: One end of the second rocker arm (15) is also hinged with a telescopic rod (23), and when the telescopic rod (23) is extended or retracted, it can drive the second rocker arm (15) to swing.

7. The transmission control device for a field returning machine according to claim 4, characterized in that: The pressing member (22) is a spring, which is sleeved on the second pull rod (21), one end of the spring is connected to the second pull rod (21), and the other end of the spring abuts against the second rocker arm (15).

8. The transmission control device for a field returning machine according to claim 3, characterized in that: The axis of the engine output wheel (9), the axis of the whole machine output pulley (13), and the axis of the third tensioning wheel (18) are parallel to each other.

9. The transmission control device for a field returning machine according to claim 3, characterized in that: The axis of the engine output wheel (9), the axis of the second transmission wheel (11), and the axis of the second tension wheel (16) are parallel to each other.

10. The transmission control device for a field returning machine according to claim 1, characterized in that: The hinge axis of the first rocker arm (4), the axis of the first tensioning wheel (5) and the axis of the input wheel (3) are parallel to each other.

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