Control mechanism enabling clutches to act in sequence and harvester

Abstract

The utility model relates to the technical field of harvester parts, in particular to a control mechanism enabling a clutch to act in sequence and a harvester, and the structure of the control mechanism enabling the clutch to act in sequence comprises a base. The first cam is pivotally mounted on the base through a first rotating shaft; the second cam is pivotally mounted on the base through a first rotating shaft; the first clutch transmission arm is pivotally arranged on the base through a second rotating shaft, and in the rotating process of the first cam, the first clutch transmission arm can be driven by the first cam to move, so that the first clutch is combined; and the second clutch transmission arm is pivotally arranged on the base through a third rotating shaft, and in the rotating process of the first cam, after the first clutch is combined, the second clutch transmission arm can be driven by the second cam to move, so that the second clutch is combined. The control mechanism enabling the clutches to act in sequence and the harvester can solve the problem that the clutch combination sequence of an existing harvester is prone to error.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of harvester components, in particular to a control mechanism for sequential operation of clutches and a harvester. BACKGROUND

[0002] At present, most domestic harvesters adopt independent mechanical clutch operating rod structures to separately combine corresponding clutches as needed. In the use process, the combination sequence of the main clutch and the header clutch has specific requirements, that is, the main clutch needs to be combined first, otherwise it may cause blockage.

[0003] At present, the industry generally adopts the method of pasting warning labels to remind users to pay attention to this sequence, but there are still misoperation situations in the actual operation process. CONTENT OF THE UTILITY MODEL

[0004] Therefore, the purpose of the present application is to provide a control mechanism for sequential operation of clutches and a harvester to solve the problem that the existing harvesters are prone to errors in the combination sequence of clutches.

[0005] According to the first aspect of the present application, a control mechanism for sequential operation of clutches is provided, wherein the control mechanism for sequential operation of clutches comprises: a base; a first cam pivotably mounted on the base through a first rotary shaft; a second cam pivotably mounted on the base through the first rotary shaft, the second cam being synchronous with the first cam; a first clutch transmission arm pivotably provided on the base through a second rotary shaft, the first clutch transmission arm being capable of moving under the drive of the first cam during the rotation of the first cam, so that the first clutch is combined; and a second clutch transmission arm pivotably provided on the base through a third rotary shaft, the second clutch transmission arm being capable of moving under the drive of the second cam during the rotation of the first cam after the first clutch is combined, so that the second clutch is combined.

[0006] Preferably, the control mechanism for sequential operation of clutches further comprises a crescent plate, a first end of the crescent plate being pivotably connected with the first clutch transmission arm.

[0007] Preferably, the second clutch transmission arm is formed with a hook-shaped structure capable of cooperating with the second cam in the resetting process, and the control mechanism for sequential operation of clutches further comprises a connecting arm, the second clutch transmission arm being connected with the connecting arm.

[0008] Preferably, the first clutch transmission arm is connected with the crescent plate through a connecting piece, the connecting piece being capable of contacting the first cam.

[0009] Preferably, the first cam is formed as a sector, the first cam comprises an arc-shaped side and a straight side, the straight side is arranged at opposite sides of the arc-shaped side, a center of the arc-shaped side is located on an axis of the first rotary shaft, during rotation of the first cam, the straight side of the first cam first contacts the first clutch transmission arm, so that the first clutch transmission arm rotates around the second rotary shaft, after the first cam rotates by a first preset angle, the first clutch is engaged, the arc-shaped side contacts the first clutch transmission arm, and the first clutch transmission arm keeps the position.

[0010] Preferably, the first cam is formed with a hook-shaped protrusion at a connection between the arc-shaped side and the straight side.

[0011] Preferably, the second cam comprises a first side and a second side, the first side is arranged at opposite sides of the second side, during rotation of the first cam, the first side of the second cam first contacts the second clutch transmission arm, so that the second clutch transmission arm rotates around the third rotary shaft, after the first cam rotates by a second preset angle, the second clutch is engaged, the second side contacts the second clutch transmission arm, and the second clutch transmission arm keeps the position; the second preset angle is greater than the first preset angle.

[0012] Preferably, the second clutch transmission arm comprises a first plate and a second plate, one end of the first plate is connected with the second plate and is formed with an included angle, the other end of the first plate is formed with a bent part, the second cam is provided with a reset push rod protruding from a plate surface, during reset of the second cam, the reset push rod can abut against the bent part, thereby pushing the second clutch transmission arm to reset, the third rotary shaft is arranged at a connection between the first plate and the second plate, and the connecting arm rotates synchronously with the second clutch transmission arm.

[0013] Preferably, the operating mechanism that makes clutches act sequentially further comprises a motor and rotary sleeves, a plurality of rotary sleeves are respectively sleeved on the first rotary shaft, the second rotary shaft and the third rotary shaft, so that the rotary sleeves are pivotally connected with the base, the first cam and the second cam are welded on the rotary sleeve of the first rotary shaft, the motor is arranged at the top of the rotary sleeve of the first rotary shaft and is used for driving the rotary sleeve of the first rotary shaft to rotate, the first clutch transmission arm is welded on the rotary sleeve of the second rotary shaft, and the second clutch transmission arm is welded on the rotary sleeve of the third rotary shaft.

[0014] According to the second aspect of the utility model, a harvester is provided, wherein the harvester comprises the operating mechanism that makes clutches act sequentially.

[0015] The utility model discloses a kind of operating mechanisms of clutch sequential action of the harvester of embodiment of the utility model, its first cam and second cam are pivotally installed in base, and second cam is synchronous with first cam rotation.The first clutch transmission arm is pivotally arranged in base.In the process of first cam rotation, first clutch transmission arm can be moved under the drive of first cam, so that first clutch is combined.Second clutch transmission arm is also pivotally arranged in base.In the process of first cam rotation, when first clutch is combined, second clutch transmission arm can be moved under the drive of second cam, so that second clutch is combined.Thus by adjusting the shape and relative position of first cam and second cam, first clutch and second clutch can be combined in fixed order in turn, and the problem that existing harvester is prone to clutch combination order error can be effectively solved.

[0016] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the following preferred embodiments are described in detail below, and the accompanying drawings are described as follows. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0018] Figure 1 is a schematic diagram of the structure of the operating mechanism of the clutch sequential action according to the utility model.

[0019] Figure 2 is a schematic diagram of the initial position of the operating mechanism of the clutch sequential action according to the utility model.

[0020] Figure 3 is a schematic diagram of the first clutch combination of the operating mechanism of the clutch sequential action according to the utility model.

[0021] Figure 4 is a schematic diagram of the first clutch and second clutch combination of the operating mechanism of the clutch sequential action according to the utility model.

[0022] Figure 5 is a schematic diagram of another angle of the operating mechanism of the clutch sequential action according to the utility model.

[0023] Reference numerals: 1 - first cam; 11 - arc-shaped edge; 12 - straight edge; 13 - hook-shaped protrusion; 2 - second cam; 21 - first side edge; 22 - second side edge; 23 - return push rod; 3 - first clutch transmission arm; 31 - crescent plate; 4 - second clutch transmission arm; 40 - roller; 401 - first plate; 4010 - bent part; 402 - second plate; 41 - connecting arm; 5 - base; 6 - motor; 71 - first rotary shaft; 72 - second rotary shaft; 73 - third rotary shaft. DETAILED DESCRIPTION

[0024] The following detailed description is presented to aid the reader in gaining a comprehensive understanding of the methods, apparatuses, and / or systems described herein. However, various changes, modifications, and equivalents can be used, and the

[0025] The terminology used herein is for the purpose of describing particular examples only and is not intended to be limiting of the methods, apparatuses, and / or systems described herein. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0026] Throughout the specification, when an element (such as a layer, region or substrate) is referred to as being "on" another element, "connected to" another element, "coupled to" another element, "adjacent to" another element, "on top of" another element, or "covering" another element, it can be directly on, connected to, coupled to, adjacent to, on top of, or covering the other element, or one or more other elements can be interposed therebetween. In contrast, when an element is referred to as being "directly on", "directly connected to", "directly coupled to", "directly adjacent to", "directly on top of", or "directly covering" another element, there are no other elements interposed therebetween.

[0027] As used herein, the term "and / or" includes any and all combinations of one or more of the associated items.

[0028] Although terms such as "first" and "second" and "third" can be used herein to describe various elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. Rather, these terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, elements, components, regions, layers and / or sections described herein as being called a first element, component, region, layer or section can also be called a second element, component, region, layer or section, without departing from the teachings of the examples.

[0029] For ease of description, spatial terms such as "over," "upper," "under," and "lower" can be used with respect to the orientation of one element relative to another element as illustrated in the figures. Such spatial terms are intended to encompass different orientations of the device in use or operation, in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as being "over" or "upper" relative to other elements would then be oriented "under" or "lower" relative to the other elements. Accordingly, the term "over" encompasses both an "over" and an "under" orientation. The device can be oriented in other ways (e.g., rotated 90 degrees or at other orientations) and terms such as "over," "upper," "under," and "lower" used herein will be interpreted accordingly.

[0030] The terminology used herein is for the purpose of describing various examples only and is not intended to be limiting of examples. As used herein, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "includes," "including" and "has," "having" and the like are inclusive of the stated features, numbers, operations, components, elements, and / or the like, but do not exclude the presence or addition of one or more other features, numbers, operations, components, elements, and / or the like.

[0031] Variations in shapes illustrated in the figures can occur as a result of manufacturing processes and / or tolerances. Thus, the examples described herein are not limited to the precise shapes illustrated in the figures, but include variations in shapes that occur as a result of manufacturing processes.

[0032] Features of the examples described herein can be combined with features of other examples in accordance with the disclosure. In addition, although various examples have been described herein with reference to a number of illustrative embodiments, it should be understood that various modifications can be made without departing from the spirit of the disclosure. For example, although examples have been described with reference to particular means for performing various described operations, such elements can be implemented in one or more of hardware, software, firmware, or combinations of the three. Further, although examples have been described herein with reference to particular means for performing various described operations, such elements can be implemented in one or more of hardware, software, firmware, or combinations of the three. Further, although examples have been described herein with reference to particular means for performing various described operations, such elements can be implemented in one or more of hardware, software, firmware, or combinations of the three. Further, although examples have been described herein with reference to particular means for performing various described operations, such elements can be implemented in one or more of hardware, software, firmware, or combinations of the three.

[0033] As Figures 1 to 5As shown, according to the first aspect of the utility model discloses a kind of sequential action of clutch operating mechanism, the sequential action of clutch operating mechanism including base 5, first cam 1, second cam 2, first clutch transmission arm 3 and second clutch transmission arm 4.

[0034] In the following description, reference will be made to Figures 1 to 5 Specific structure of the above-mentioned components of sequential action of clutch operating mechanism and the connection relationship of the above-mentioned components are specifically described.

[0035] As Figures 1 to 5 Shown, in embodiment, first cam 1 and second cam 2 can be pivotably installed on base 5 by first rotary shaft 71.The second cam 2 and the first cam 1 can be synchronous rotation, and they can be connected by first rotary shaft 71.First clutch transmission arm 3 can be pivotably arranged on base 5 by second rotary shaft 72.In the process of rotating the first cam 1, first clutch transmission arm 3 can be moved under the drive of first cam 1, so that first clutch is combined.Second clutch transmission arm 4 can be pivotably arranged on base 5 by third rotary shaft 73.In the process of rotating the first cam 1, when first clutch is combined, second clutch transmission arm 4 can be moved under the drive of second cam 2, so that second clutch is combined.Thus, by adjusting the shape and relative position of first cam 1 and second cam 2, first clutch and second clutch can be combined in fixed order in turn, so that clutch combination order error can be effectively avoided.

[0036] Preferably, as Figures 1 to 5 Shown, in embodiment, at least three rotary shafts can be installed on the base 5, wherein first clutch transmission arm 3 can be installed on second rotary shaft 72 (it can be rotary shaft on left side as shown in Figure 1 ), and first clutch transmission arm 3 can be welded with rotary sleeve of second rotary shaft 72.First cam 1 and second cam 2 can be installed on first rotary shaft 71 (it can be rotary shaft in middle as shown in Figure 1 ), and first cam 1 and second cam 2 can be welded with rotary sleeve of first rotary shaft 71 respectively, so that first cam 1 and second cam 2 can be synchronous rotation.Second clutch transmission arm 4 can be installed on third rotary shaft 73 (it can be rotary shaft on right side as shown in Figure 1 ), and second clutch transmission arm 4 can be welded with rotary sleeve of third rotary shaft 73.The sequential action of clutch operating mechanism can also include motor 6.Preferably, motor 6 can be connected with the top of rotary sleeve of first rotary shaft 71, to drive first cam 1 and second cam 2 synchronous rotation.

[0037] Preferably, asFigures 1 to 4 As shown in the embodiments, the operating mechanism for sequentially operating the clutch can further comprise a crescent plate 31. The first end of the first clutch transmission arm 3 can be connected to the second rotary shaft 72, so that the first clutch transmission arm 3 can rotate relative to the second rotary shaft 72. The second end of the first clutch transmission arm 3 can be pivotally connected to the first end of the crescent plate 31 through a connecting member, which can be a pivot. The second end of the crescent plate 31 can be connected to the components such as the pull wire or spring of the first clutch, for transmitting the stroke.

[0038] Further, preferably, as shown in the embodiments, Figures 1 to 4 As shown in the embodiments, the first cam 1 can be formed in a fan shape. Specifically, as shown in the embodiments, the first cam 1 can be formed in a semicircle shape. The pivot at the connection between the first clutch transmission arm 3 and the crescent plate 31 can be in contact with the first cam 1, so that the first cam 1 can drive the first clutch transmission arm 3 to pivot during the rotation of the first cam 1. To avoid interference, the crescent plate 31, the second cam 2 and the first cam 1 can be arranged axially staggered.

[0039] Further preferably, as shown in the embodiments, Figures 1 to 4 As shown in the embodiments, the first cam 1 can comprise an arc-shaped edge 11 and a straight edge 12. The straight edge 12 can be arranged on the opposite side of the arc-shaped edge 11. The center of the arc-shaped edge 11 can be located on the axis of the first rotary shaft 71. During the rotation of the first cam 1, the straight edge 12 of the first cam 1 first contacts the first clutch transmission arm 3, so that the first clutch transmission arm 3 rotates around the second rotary shaft 72. After the first cam 1 rotates by a first preset angle, the first clutch is engaged, and the arc-shaped edge 11 contacts the first clutch transmission arm 3. In this case, the first clutch transmission arm 3 remains in position (i.e., remains in a position capable of engaging the first clutch), so as to ensure that the first clutch is in the engaged state during the subsequent movement of the first cam 1.

[0040] In addition, preferably, as shown in the embodiments, Figures 1 to 4 As shown in the embodiments, the first cam 1 can further comprise a hook-shaped protrusion 13 at the connection between the arc-shaped edge 11 and the straight edge 12. Specifically, the straight edge 12 can comprise an arc-shaped protrusion, so that the first cam 1 can easily drive the first clutch transmission arm 3 to rotate when the first cam 1 contacts the second end of the first clutch transmission arm 3.

[0041] Preferably, as shown in the embodiments, Figures 1 to 4As shown in the embodiment, the second cam 2 can include a first side 21 and a second side 22. The first side 21 is arranged at the opposite side of the second side 22. During the rotation of the first cam 1, the first side 21 of the second cam 2 first contacts the second clutch transmission arm 4, so that the second clutch transmission arm 4 rotates around the third rotary shaft 73. Preferably, the second clutch transmission arm 4 is provided with a roller 40 to reduce the friction between the second clutch transmission arm 4 and the second cam 2. After the first cam 1 rotates by a second preset angle, the second clutch is engaged, the second side 22 contacts the second clutch transmission arm 4, and the second side 22 is an arc with the center of the arc being located on the axis of the first rotary shaft 71. In this case, the second clutch transmission arm 4 remains in position (i.e., remains in a position capable of engaging the second clutch), so as to ensure that the second clutch is in the engaged state during the subsequent movement of the second cam 2. Further, the second preset angle is greater than the first preset angle, so as to ensure that the first clutch is engaged before the second clutch. The first preset angle and the second preset angle can be the angle of clockwise rotation of the first cam 1.

[0042] Preferably, as shown in the embodiment, Figures 1 to 4 As shown in the embodiment, the second clutch transmission arm 4 can be formed in a hook-shaped structure. Specifically, the second clutch transmission arm 4 can include a first plate 401 and a second plate 402 which are welded to the rotary sleeve of the third rotary shaft 73 and form an included angle therebetween (i.e., the first plate 401 and the second plate 402 are connected to form a hook-shaped structure), and the third rotary shaft 73 is arranged at the connection of the two plates. The hook-shaped structure enables the second clutch transmission arm 4 to cooperate with the second cam 2 during the resetting process. Specifically, one end of the first plate 401 is connected to the second plate 402 through the rotary sleeve, and the other end of the first plate 401 is formed with a bent portion 4010. The second cam 2 is provided with a reset push rod 23 protruding from the plate surface. During the resetting of the second cam 2, the reset push rod 23 can abut against the bent portion 4010, thereby pushing the second clutch transmission arm 4 to reset. In this way, the second cam 2 can abut against the partial position of the second clutch transmission arm 4 during clockwise rotation and counterclockwise rotation, so as to facilitate the driving of the second clutch transmission arm 4 to rotate relative to the third rotary shaft 73 by the second cam 2. The connecting arm 41 can also be welded to the rotary sleeve of the third rotary shaft 73 to rotate synchronously with the second clutch transmission arm 4.

[0043] Further preferably, as shown in the embodiment, Figures 1 to 4 In the embodiment, the second clutch transmission arm 4 can also be welded to the connecting arm 41, so that the connecting arm 41 can rotate synchronously with the second clutch transmission arm 4. The connecting arm 41 is used to connect the pull wire or spring of the second clutch, so as to transmit the stroke.

[0044] Further, the utility model discloses a harvester, the harvester includes the operating mechanism of sequential action of clutch as described above.

[0045] During use, the operating mechanism of sequential action of clutch can realize the combination of the first clutch and the second clutch in fixed sequence by adjusting the shape and relative position of the first cam 1 and the second cam 2.

[0046] Finally, it should be noted that: the above-described embodiments, only for the specific embodiments of the present application, to illustrate the technical solutions of the present application, rather than limit it, the protection scope of the present application is not limited to this, although the foregoing detailed description of the present application is made by referring to the foregoing embodiments, those skilled in the art should understand: any familiar with the technical field of the technical person in the technical range disclosed by the present application, it still can be modified or easily thought of changes to the technical solution recorded in the foregoing examples, or equivalent replacement to part of the technical features, and these modifications, changes or replacement, do not make the corresponding technical solution of the essence of the present application deviate from the spirit and scope of the technical solution of the embodiment, all should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be the protection scope of the claims.

Claims

1. A control mechanism for sequentially operating a clutch, characterized in that, The sequential operation mechanism of the clutch comprises: a base; a first cam pivotally mounted on the base through a first pivot shaft; a second cam pivotally mounted on the base through the first pivot shaft, the second cam being synchronous with the first cam; a first clutch transmission arm pivotally arranged on the base through a second pivot shaft, the first clutch transmission arm being capable of moving under the drive of the first cam during the rotation of the first cam, so that the first clutch is engaged; and a second clutch transmission arm pivotally arranged on the base through a third pivot shaft, the second clutch transmission arm being capable of moving under the drive of the second cam after the first clutch is engaged during the rotation of the first cam, so that the second clutch is engaged.

2. The actuation mechanism for sequentially operating a clutch according to claim 1, characterized in that The sequential operation mechanism of the clutch further comprises a crescent plate, a first end of the crescent plate being pivotally connected with the first clutch transmission arm.

3. The actuation mechanism for sequentially operating a clutch of claim 1, wherein, The second clutch transmission arm is formed with a hook-shaped structure capable of cooperating with the second cam during the resetting process, and the sequential operation mechanism of the clutch further comprises a connecting arm, the second clutch transmission arm being connected with the connecting arm.

4. The actuation mechanism for sequentially operating a clutch of claim 2, wherein, The first clutch transmission arm is connected with the crescent plate through a connecting piece capable of contacting the first cam.

5. A manipulation mechanism for sequentially operating a clutch according to claim 4, characterized in that The first cam is formed in a sector shape, the first cam comprising an arc-shaped side and a straight side arranged on opposite sides of the arc-shaped side, the center of the arc-shaped side being located on the axis of the first pivot shaft, during the rotation of the first cam, the straight side of the first cam first contacts the first clutch transmission arm, so that the first clutch transmission arm rotates around the second pivot shaft, after the first cam rotates by a first preset angle, the first clutch is engaged, the arc-shaped side contacts the first clutch transmission arm, and the first clutch transmission arm remains in position.

6. A manipulation mechanism for sequentially operating a clutch according to claim 5, characterized in that The first cam is formed with a hook-shaped protrusion at the joint of the arc-shaped side and the straight side.

7. The actuation mechanism for sequentially operating a clutch of claim 5, wherein, The second cam comprises a first side and a second side arranged on opposite sides of the second side, during the rotation of the first cam, the first side of the second cam first contacts the second clutch transmission arm, so that the second clutch transmission arm rotates around the third pivot shaft, after the first cam rotates by a second preset angle, the second clutch is engaged, the second side contacts the second clutch transmission arm, and the second clutch transmission arm remains in position; the second preset angle is greater than the first preset angle.

8. The actuation mechanism for sequentially operating a clutch of claim 3, wherein, The second clutch transmission arm comprises a first plate and a second plate, one end of the first plate being connected with the second plate and formed with an included angle, the other end of the first plate being formed with a bent portion, the second cam being provided with a reset push rod protruding from the plate surface, during the resetting of the second cam, the reset push rod can abut against the bent portion, thereby pushing the second clutch transmission arm to reset, the third pivot shaft being arranged at the connection between the first plate and the second plate, and the connecting arm rotates synchronously with the second clutch transmission arm.

9. The actuation mechanism for sequentially operating a clutch according to any one of claims 1 to 8, characterized in that The clutch sequence action operating mechanism further comprises a motor and a rotating sleeve, a plurality of rotating sleeves are respectively sleeved on the first rotating shaft, the second rotating shaft and the third rotating shaft, so that the rotating sleeve is pivotally connected with the base, the first cam and the second cam are welded on the rotating sleeve of the first rotating shaft, the motor is arranged on the top of the rotating sleeve of the first rotating shaft and is used for driving the rotating sleeve of the first rotating shaft to rotate, the first clutch transmission arm is welded on the rotating sleeve of the second rotating shaft, and the second clutch transmission arm is welded on the rotating sleeve of the third rotating shaft.

10. A harvester characterized by The harvester comprises the clutch sequence action operating mechanism according to any one of claims 1 to 9.

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