CN218063145U

CN218063145U - Agricultural machinery operating device that walks

Info

Publication number: CN218063145U
Application number: CN202222594610.1U
Authority: CN
Inventors: 丁河明; 王民兴; 谭鑫; 秦大国
Original assignee: Chongqing Shineray Agricultural Machinery Co Ltd
Current assignee: Chongqing Shineray Agricultural Machinery Co Ltd
Priority date: 2022-09-29
Filing date: 2022-09-29
Publication date: 2022-12-16
Anticipated expiration: 2032-09-29

Abstract

The utility model discloses an agricultural machinery walking operating mechanism, which comprises an operating frame, wherein an operating rod is movably arranged on the operating frame; the inner side of the operating frame is provided with a synchronous driving unit which is respectively connected with the lower ends of the clutch cable, the gear shifting pull rod and the operating rod, and the operating rod can synchronously drive the clutch cable and the gear shifting pull rod to complete clutch and gear shifting operations in one step through the synchronous driving unit. The utility model connects the clutch cable and the gear shift pull rod with an operating rod through the synchronous driving unit, and under the action of the driving unit, a user can synchronously drive the clutch cable and the gear shift pull rod through the operating rod, thereby completing the switching of the forward gear and the backward gear while the clutch is transited from the tensioning state to the loosening state; not only easy operation still can avoid appearing the maloperation, can effectively solve present agricultural machinery walking operating device and operate complicated problem, gains the effect that reduces the agricultural machinery operation degree of difficulty and improves agricultural machinery safety in utilization.

Description

Agricultural machinery operating device that walks

Technical Field

The utility model belongs to the technical field of the agricultural machinery operation, concretely relates to agricultural machinery walking operating device.

Background

With the rapid development of the social and economic level, the stock quantity and the popularization range of agricultural machinery are steadily increased, the modernization level of agricultural production is higher and higher, and the application of the agricultural machinery not only greatly reduces the labor intensity of farmers, but also greatly improves the efficiency of agricultural production.

The operation of the agricultural machine mainly comprises production operation and walking operation, wherein the production operation refers to control of a specific mechanism carried on the agricultural machine to complete corresponding production actions, such as control of the agricultural machine to harvest corn, spray pesticides, renovate soil and the like, and the walking operation refers to control of a walking mechanism of the agricultural machine to complete basic advancing actions, such as control of the agricultural machine to turn, advance, retreat and the like. The agricultural machinery is generally provided with a walking operation mechanism for a user to finish walking operation, the walking operation mechanism mainly comprises an operation frame arranged beside a driving position and a plurality of operation rods movably arranged on the operation frame, and the lower ends of the operation rods are connected with an execution mechanism through inhaul cables or link mechanisms so as to realize corresponding control; one operating rod is responsible for switching a forward gear and a backward gear, and when the forward gear and the backward gear are switched, the other operating rod is required to control clutch, namely the position of the tension wheel is controlled to tension or loosen a transmission belt between the driving wheel and the driven wheel, for example, the vertical distributed belt transmission clutch structure in the chinese patent CN 202120825183.6.

The current agricultural machinery walking operating mechanism, the switching of advancing gear and retreating gear and the separation and reunion of action wheel and follow driving wheel are accomplished by two action bars control respectively, and not only the operation is complicated, still the maloperation appears easily, if shift by force under the condition of not loosening the separation and reunion, not only cause the damage to engine and drive belt easily, still probably take place the incident. Therefore, it is necessary to design an operating mechanism for agricultural machinery capable of synchronously switching front and rear gears and engaging and disengaging so as to reduce the difficulty of operating the agricultural machinery and improve the safety of the agricultural machinery.

Disclosure of Invention

The above-mentioned not enough to prior art, the to-be-solved technical problem of the utility model is to provide an agricultural machinery walking operating device, solve present agricultural machinery walking operating device and operate complicated problem, gain the effect that reduces the agricultural machinery operation degree of difficulty and improve agricultural machinery safety in utilization.

In order to solve the technical problem, the utility model adopts the following technical scheme:

an agricultural machinery walking operating mechanism comprises an operating frame, wherein an operating rod is movably arranged on the operating frame, and the lower end of the operating rod extends to the inner side of the operating frame; the inside of the operation frame is provided with a synchronous driving unit which is respectively connected with the clutch cable, the gear shifting pull rod and the lower end of the operation rod, and the operation rod can synchronously drive the clutch cable and the gear shifting pull rod to complete clutch and gear shifting operation in one step through the synchronous driving unit.

Furthermore, the synchronous driving unit comprises a plate-shaped driving rocker arm, the middle of the driving rocker arm is rotatably connected with the operating frame through a rotating shaft I arranged along the thickness direction of the driving rocker arm, the two ends of the driving rocker arm along the length direction of the driving rocker arm are respectively formed into an input end and an output end, the rotating shaft I is positioned between the input end and the output end, the input end is connected with the lower end of the operating rod so as to drive the driving rocker arm to swing around the rotating shaft I through the operating rod, a gear shifting transmission column which is eccentrically arranged with the rotating shaft I is arranged on one side surface of the driving rocker arm along the thickness direction of the driving rocker arm, and the gear shifting transmission column is used for being connected with a gear shifting pull rod so as to drive the gear shifting pull rod through the driving rocker arm to complete gear shifting operation;

the output runs through along its thickness direction and is equipped with the separation and reunion guiding groove, the separation and reunion guiding groove is for the W shape that extends and both ends towards the input along the width direction of initiative rocking arm, three inflection point positions in the W shape are circular-arc smooth transition, the initiative rocking arm is equipped with the separation and reunion rocking arm along one side of its thickness direction, the middle part of separation and reunion rocking arm is connected with the operation frame rotation through pivot II with I syntropy of pivot, the one end that the separation and reunion rocking arm is close to the initiative rocking arm is formed with the separation and reunion guide post towards the initiative rocking arm arch, the diameter and the separation and reunion guiding groove width phase-match of separation and reunion guide post, the separation and reunion guide post is arranged in the separation and reunion guiding groove and sliding fit so that it revolves II swings around the axle to drive the separation and reunion rocking arm through the initiative rocking arm, the one end that the separation and reunion rocking arm was kept away from each other to the arm has the separation and reunion spliced pole, the separation and reunion spliced pole is used for connecting so that the separation and reunion cable is accomplished the clutching operation through the separation and reunion rocking arm drive separation and reunion rocking arm.

Furthermore, a plate-shaped shifting rocker arm is arranged on one side, provided with a shifting transmission column, of the driving rocker arm in parallel, the shifting rocker arm is rotatably connected with the operating frame through a rotating shaft III in the same direction as the rotating shaft I, a V-shaped shifting guide notch is formed in the shifting rocker arm, the shifting transmission column is located in the shifting guide notch so as to drive the shifting rocker arm to swing around the rotating shaft III through the driving rocker arm, a shifting connection column which is eccentrically arranged with the rotating shaft III is arranged on the shifting rocker arm, and the shifting transmission column is in transmission connection with the shifting rocker arm and is connected with a shifting pull rod through the shifting connection column; when separation and reunion guide post is located separation and reunion guiding groove middle part, the transmission post that shifts is located the guide breach central point that shifts and offsets so that improve the degree of cooperation of separation and reunion operation and the operation of shifting with the guide breach both sides wall of shifting.

Furthermore, a connecting hole for penetrating a rotating shaft I is formed in the middle of the driving rocker arm, tubular stabilizing parts are convexly formed on two side faces of the driving rocker arm, the stabilizing parts are concentric with the connecting hole and have the same inner diameter, and the rotating shaft I is respectively in rotating fit with the connecting hole and the inner wall of the stabilizing part; fixedly connected with rocker of shifting on the stability portion, the transmission post arch of shifting is formed on the rocker of shifting.

Furthermore, the outer rotatable cover of separation and reunion guide post is equipped with the guide pulley, and the diameter and the separation and reunion guiding groove width phase-match of guide pulley, guide pulley are located the separation and reunion guiding groove, and the separation and reunion guide post passes through guide pulley and the rolling cooperation of separation and reunion guiding groove.

Furthermore, the input end is rotatably connected with the lower end of the operating rod through a rotating shaft IV arranged along the width direction of the driving rocker arm.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. in the agricultural machinery walking operating mechanism, the clutch cable and the gear shifting pull rod are connected with one operating rod through the synchronous driving unit, and a user can synchronously drive the clutch cable and the gear shifting pull rod through one operating rod under the action of the driving unit, so that the switching of a forward gear and a backward gear is completed when the clutch is transited from a tensioning (separating) state to a loosening (combining) state; the agricultural machinery walking operation mechanism completes the clutch gear shifting operation through one operation rod in one step, is simple in operation, can avoid misoperation, can effectively solve the problem that the existing agricultural machinery walking operation mechanism is complex in operation, and achieves the effects of reducing the operation difficulty of agricultural machinery and improving the use safety of agricultural machinery.

2. In the synchronous driving unit of the utility model, the driving rocker arm drives the clutch rocker arm through the matching of the clutch guide groove and the clutch guide post, and further drives the clutch cable to complete the clutch operation; the clutch guide groove is set to be W-shaped, the middle part of the clutch guide groove corresponds to a tensioned state, and two ends of the clutch guide groove correspond to a completely loosened state, namely when the clutch guide column is positioned at positions except the positions of the two ends, the clutches are in the tensioned state or the incompletely loosened state so as to conveniently complete gear shifting operation in a matched manner; the W-shaped clutch guide groove is provided with three inflection points, and can limit the free sliding of the clutch guide post in the clutch guide groove due to vibration.

3. Among the synchronous drive unit, the setting has the rocking arm of shifting and the cooperation of the transmission post of shifting of the guide breach of shifting that is the V-arrangement, replaces the transmission post of shifting direct to be connected with the pull rod of shifting, makes by the separation and reunion operation that the initiative rocking arm drive was accomplished simultaneously and shifts the operation mutually noninterfere on the stroke, and then makes the synchronous drive unit accomplish the separation and reunion operation in step and shift the cooperation degree of operation better, links up more smoothly stable.

Drawings

FIG. 1 is a schematic structural view of an agricultural machine walking operating mechanism of an embodiment;

FIG. 2 is a schematic structural diagram of a synchronous drive unit according to an embodiment;

FIG. 3 is a schematic structural diagram of an active rocker arm according to an embodiment;

wherein, handling frame 1, action bars 2, the pull rod 3 of shifting, initiative rocking arm 4, pivot I5, the transmission post 6 of shifting, separation and reunion guide slot 7, separation and reunion rocking arm 8, pivot II 9, separation and reunion guide post 10, separation and reunion spliced pole 11, rocking arm 12 shifts, pivot III 13, the guide breach 14 of shifting, the connecting rod 15 of shifting, the stability portion 16, the rocker 17 of shifting, guide pulley 18, pivot IV 19.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are absolutely horizontal or hanging, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined. In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

referring to fig. 1 and 2, an operating mechanism for walking of agricultural machinery comprises an operating frame 1, an operating rod 2 is movably arranged on the operating frame 1, and the lower end of the operating rod 2 extends to the inner side of the operating frame 1; the inner side of the operating frame 1 is provided with a synchronous driving unit which is respectively connected with the clutch cable (not shown in the figure), the gear shifting pull rod 3 and the lower end of the operating rod 2, and the operating rod 2 can synchronously drive the clutch cable and the gear shifting pull rod 3 through the synchronous driving unit to complete clutch and gear shifting operations in one step.

In the agricultural machinery walking operating mechanism, the clutch cable and the gear shifting pull rod 3 are connected with one operating rod 2 through the synchronous driving unit, and under the action of the driving unit, a user can synchronously drive the clutch cable and the gear shifting pull rod 3 through one operating rod 2, so that the switching of a forward gear and a backward gear is completed when the clutch is transited from a tensioning (separating) state to a loosening (closing) state; the agricultural machinery walking operation mechanism completes the clutch gear shifting operation through one step by one operation rod 2, is simple in operation, can avoid misoperation, can effectively solve the problem that the existing agricultural machinery walking operation mechanism is complex in operation, and achieves the effects of reducing the operation difficulty of agricultural machinery and improving the use safety of agricultural machinery.

Referring to fig. 1 to 3, specifically, the synchronous driving unit adopts the following structural form:

the synchronous driving unit comprises a plate-shaped driving rocker arm 4, the middle part of the driving rocker arm 4 is rotatably connected with the operating frame 1 through a rotating shaft I5 arranged along the thickness direction of the driving rocker arm 4, the driving rocker arm 4 is provided with an input end and an output end along the length direction of the driving rocker arm, the input end is connected with the lower end of the operating rod 2 so as to drive the driving rocker arm 4 to swing around the rotating shaft I5 through the operating rod 2, a gear shifting transmission column 6 eccentrically arranged with the rotating shaft I5 is arranged on one side surface of the driving rocker arm 4 along the thickness direction of the driving rocker arm 4, and the gear shifting transmission column 6 is used for being connected with a gear shifting pull rod 3 so as to drive the gear shifting pull rod 3 through the driving rocker arm 4 to complete gear shifting operation;

the output end is provided with a clutch guide groove 7 in a penetrating manner along the thickness direction of the output end, the clutch guide groove 7 is in a W shape extending along the width direction of the driving rocker arm 4, two ends of the clutch guide groove are towards the input end, three inflection points in the W shape are in arc-shaped smooth transition, one side of the driving rocker arm 4 along the thickness direction of the driving rocker arm is provided with a clutch rocker arm 8, the middle part of the clutch rocker arm 8 is rotatably connected with the operating frame 1 through a rotating shaft II 9 in the same direction as the rotating shaft I5, one end, close to the driving rocker arm 4, of the clutch rocker arm 8 protrudes towards the driving rocker arm 4 to form a clutch guide post 10, the diameter of the clutch guide post 10 is matched with the width of the clutch guide groove 7, the clutch guide post 10 is positioned in the clutch guide groove 7 and is in sliding fit so that the clutch rocker arm 8 is driven to swing around the rotating shaft II 9 through the driving rocker arm 4, one end, far away from the driving rocker arm 4, of the clutch rocker arm 8 is provided with a clutch connecting post 11, and the clutch connecting post 11 is used for connecting a clutch cable so that the clutch rocker arm 8 is driven to complete clutch operation; when the clutch is implemented, one end of the clutch cable close to the clutch connecting column 11 is fixedly connected to the clutch connecting column 11, and then the clutch cable extends upwards and is directly connected with the clutch mechanism or is connected with the clutch mechanism after turning.

In addition, the two ends of the clutch guide groove 7 are symmetrical about a connecting line of the middle of the clutch guide groove 7 and the rotating shaft I5, when the clutch guide post 10 is located in the middle of the clutch guide groove 7, the connecting line of the middle of the clutch guide groove 7 and the rotating shaft I5 is perpendicular to the clutch rocker arm 8, therefore, when the clutch guide post 10 is located in the middle of the clutch guide groove 7, the driving rocker arm 4 swings around the rotating shaft I5 to any direction for a certain extent, the swing range of the clutch rocker arm 8 is the same, and the swing range is the largest, so that switching of a forward gear and a backward gear is matched.

For the convenience of understanding the present invention, the principle of operation of the synchronous driving unit is described as follows:

1) In an initial state, the clutch guide post 10 is positioned in the middle of the clutch guide groove 7, the clutch guide post 10, the gear shifting transmission post 6 and the rotating shaft I5 are collinear, and the clutch is in a tensioning state and is prepared for switching between a forward gear and a backward gear; assuming that the rotating shaft I5 is arranged along the width direction of the agricultural machine, the operating rod 2 is pushed forwards to be a forward shifting position, and the operating rod 2 is pushed backwards to be a backward shifting position;

2) When the driving rocker arm 4 swings forwards or backwards around the rotating shaft I5 through the operating rod 2, the gear shifting transmission column 6 swings along with the driving rocker arm 4, so that the gear shifting pull rod 3 is driven to complete gear shifting; meanwhile, the clutch guide post 10 slides relatively in the clutch guide groove 7, and the clutch guide groove 7 extends along the width direction of the active rocker arm 4, so that when the clutch guide post 10 is positioned in the middle of the clutch guide groove 7, the active rocker arm 4 swings forwards or backwards, the clutch rocker arm 8 swings around the rotating shaft II 9 in the same direction, and the clutch cable is driven to enable the clutch to be transited from a tightening state to a loosening state; when the clutch guide post 10 slides to the end part of the clutch guide groove 7, the clutch is in a completely loosened state, and the gear shifting is completed;

3) When the driving rocker arm 4 swings reversely around the rotating shaft I5 through the operating rod 2, the clutch guide post 10 slides from the end part to the middle part in the clutch guide groove 7 to drive the clutch cable to enable the clutch to transit from a loosening state to a tensioning state, namely, the clutch cable is reset to the state of the step 1), and preparation is made for next gear shifting.

Therefore, in the synchronous driving unit of the utility model, the driving rocker arm 4 directly drives the gear shifting pull rod 3 through the gear shifting transmission column 6 to complete gear shifting operation, and drives the clutch rocker arm 8 through the cooperation of the clutch guide groove 7 and the clutch guide column 10, so as to drive the clutch cable to complete clutch operation; the clutch guide groove 7 is set to be W-shaped, the middle part of the clutch guide groove is correspondingly in a tensioned state, and two ends of the clutch guide groove are correspondingly in a completely loosened state, namely, the clutch is in the completely loosened state only when the clutch guide post 10 is positioned at two ends of the clutch guide groove 7, and when the clutch guide post 10 is positioned at positions except the positions at two ends, the clutch is in the tensioned state or in the incompletely loosened state so as to conveniently complete gear shifting operation in a matching way; the W-shaped clutch guide groove 7 has three inflection points, and can restrict the free sliding of the clutch guide post 10 in the clutch guide groove 7 due to vibration.

Referring to fig. 1 and fig. 2, in order to make the synchronous driving unit have better adaptability for synchronously completing the clutch operation and the gear shifting operation, and the engagement is smoother and more stable, the synchronous driving unit further includes the following structure:

one side of the driving rocker arm 4, which is provided with the gear shifting transmission column 6, is provided with a platy gear shifting rocker arm 12 in parallel, the gear shifting rocker arm 12 is rotatably connected with the operating frame 1 through a rotating shaft III 13 in the same direction as the rotating shaft I5, a V-shaped gear shifting guide notch 14 is formed in the gear shifting rocker arm 12, the gear shifting transmission column 6 is located in the gear shifting guide notch 14 so that the gear shifting rocker arm 12 is driven by the driving rocker arm 4 to swing around the rotating shaft III 13, a gear shifting connecting column which is eccentrically arranged with the rotating shaft III 13 is arranged on the gear shifting rocker arm 12, and the gear shifting connecting column replaces the gear shifting transmission column 6 to be connected with the gear shifting pull rod 3; when the clutch guide post 10 is positioned in the middle of the clutch guide groove 7, the gear shifting transmission post 6 is positioned in the middle of the gear shifting guide notch 14 and abuts against two side walls of the gear shifting guide notch 14 so as to improve the matching degree of clutch operation and gear shifting operation;

in this implementation, for adapting to the actual pull rod 3 position of shifting, pivot III 13 shifts 3 positions of pull rod and transversely extends and be equipped with the connecting rod 15 of shifting in the tip towards the actual pull rod 3 position of shifting, the one end of connecting rod 15 of shifting and the tip fixed connection of pivot III 13, the other end of connecting rod 15 of shifting and pull rod 3 rotatable coupling of shifting, promptly use the connecting rod 15 of shifting to replace the above-mentioned spliced pole of shifting.

Thus, in the step 1), when the clutch guide post 10 is located in the middle of the clutch guide slot 7, the shift transmission post 6 is located in the middle of the shift guide notch 14 and abuts against two side walls of the shift guide notch 14; in the step 2), when the driving rocker arm 4 swings forwards or backwards around the rotating shaft I5 through the operating rod 2, the shifting transmission column 6 swings along with the driving rocker arm 4, and the shifting transmission column 6 abuts against two side walls of the shifting guide notch 14, so that the shifting transmission column 6 immediately drives the shifting rocker arm 12 to swing in one direction for a certain range, the shifting pull rod 3 is driven to complete gear shifting, the clutch guide column 10 slides for a short distance from the middle part to two ends in the clutch guide groove 7, the clutch is changed from a tensioned state to a preliminary relaxed state, the swinging stroke of the driving rocker arm 4 corresponding to the shifting operation is far smaller than the swinging stroke of the driving rocker arm 4 corresponding to the clutch which is changed from the tensioned state to a completely relaxed state, namely, the shifting operation is completed when the clutch is just started to be relaxed, the impact of the shifting operation on an agricultural machinery transmission system is reduced, and the shifting operation is more stable;

after the gear shifting operation is completed, the V-shaped gear shifting guide notch 14 on the gear shifting rocker arm 12 after swinging for a certain range loses the blocking effect on the gear shifting transmission column 6, the driving rocker arm 4 swings continuously, and when the clutch guide column 10 slides to the end part of the clutch guide groove 7 continuously, the gear shifting rocker arm 12 does not swing along with the gear shifting guide notch, namely, a large amount of idle strokes which can not lead the gear shifting rocker arm 12 to swing exist in the matching of the V-shaped gear shifting guide notch 14 and the gear shifting transmission column 6, the idle strokes correspond to the clutch state from the initial release state to the complete release state, so that the clutch operation and the gear shifting operation which are simultaneously driven and completed by the driving rocker arm 4 are not interfered with each other on the strokes, and further, the synchronous driving unit is better in matching degree of synchronously completing the clutch operation and the gear shifting operation, and is more smooth and stable in connection.

Referring to fig. 2 and 3, in the present embodiment, a connecting hole for passing through a rotating shaft i 5 is formed in the middle of the driving rocker arm 4, tubular stabilizing portions 16 are convexly formed on both side surfaces of the driving rocker arm 4, the stabilizing portions 16 are concentric with the connecting hole and have the same inner diameter, and the rotating shaft i 5 is respectively in rotating fit with the connecting hole and the inner wall of the stabilizing portion 16; therefore, the matching length of the gear shifting rocker arm 12 and the rotating shaft I5 can be increased by arranging the stabilizing part 16, and the rotating stability of the driving rocker arm 4 is improved; in addition, in the embodiment, a gear shifting rocker 17 is fixedly connected to any one of the stabilizing parts 16, and the gear shifting transmission column 6 is convexly formed on the gear shifting rocker 17; in this way, a certain distance can be left between the shifting rocker arm 12 and the driving rocker arm 4 to avoid interference, and installation is facilitated.

Referring to fig. 2, in the present embodiment, a guide wheel 18 is rotatably sleeved outside the clutch guide post 10, the guide wheel 18 is located in the clutch guide groove 7, and the diameter of the guide wheel 18 matches with the width of the clutch guide groove 7; therefore, the guide wheel 18 replaces the clutch guide post 10 to be matched with the clutch guide groove 7, rolling friction replaces sliding friction, abrasion can be reduced, smoothness of clutch gear shifting operation is improved, and meanwhile later-period maintenance and replacement are facilitated.

A Z-shaped guide groove (not shown in the figure) is formed in the table top of the general operating frame 1, the operating rod 2 responsible for switching front and rear gears is positioned in the guide groove, two ends of the guide groove extend towards the front and rear direction to push the operating rod 2 forwards or backwards to complete gear shifting operation, and the bent position of the guide groove can prevent the operating rod 2 from automatically swinging along the guide groove due to vibration of agricultural machinery so as to change the gears; therefore, the operating rod 2 swings not only forwards and backwards but also leftwards and rightwards during gear shifting; therefore, in order to better adapt to the current gear shifting action of the operating lever 2, please refer to fig. 1 and 2, in the present embodiment, the input end is rotatably connected with the lower end of the operating lever 2 through a rotating shaft iv 19 arranged along the width direction of the active rocker arm 4, so that the operating lever 2 can swing left and right while driving the active rocker arm 4 to swing back and forth.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the technical solutions, and those skilled in the art should understand that those modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all should be covered in the scope of the claims of the present invention.

Claims

1. An agricultural machinery walking operating mechanism comprises an operating frame, wherein an operating rod is movably arranged on the operating frame, and the lower end of the operating rod extends to the inner side of the operating frame; the method is characterized in that: the inside of the operation frame is provided with a synchronous driving unit which is respectively connected with the clutch cable, the gear shifting pull rod and the lower end of the operation rod, and the operation rod can synchronously drive the clutch cable and the gear shifting pull rod through the synchronous driving unit and complete the clutch and gear shifting operation.

2. The agricultural machine walking operating mechanism of claim 1, wherein: the synchronous driving unit comprises a plate-shaped driving rocker arm, the middle part of the driving rocker arm is rotatably connected with the operating frame through a rotating shaft I arranged along the thickness direction of the driving rocker arm, the two ends of the driving rocker arm along the length direction of the driving rocker arm are respectively formed into an input end and an output end, the rotating shaft I is positioned between the input end and the output end, the input end is connected with the lower end of the operating rod so as to drive the driving rocker arm to swing around the rotating shaft I through the operating rod, a gear shifting transmission column which is eccentrically arranged with the rotating shaft I is arranged on one side surface of the driving rocker arm along the thickness direction of the driving rocker arm, and the gear shifting transmission column is used for being connected with a gear shifting pull rod so as to drive the gear shifting pull rod through the driving rocker arm to complete gear shifting operation;

the output end is provided with a clutch guide groove in a penetrating manner along the thickness direction of the output end, the clutch guide groove is in a W shape, the two ends of the clutch guide groove extend along the width direction of the driving rocker arm, the two ends of the clutch guide groove are symmetrical relative to a connecting line of the middle part of the clutch guide groove and a rotating shaft I, one side of the driving rocker arm along the thickness direction of the driving rocker arm is provided with the clutch rocker arm, the middle part of the clutch rocker arm is rotatably connected with the operating frame through the rotating shaft II in the same direction as the rotating shaft I, one end of the clutch rocker arm, which is close to the driving rocker arm, protrudes towards the driving rocker arm to form a clutch guide post, the diameter of the clutch guide post is matched with the width of the clutch guide groove, the clutch guide post is positioned in the clutch guide groove and is in sliding fit so as to drive the clutch rocker arm to swing around the rotating shaft II through the driving rocker arm, and when the clutch guide post is positioned in the middle part of the clutch guide groove, the connecting line of the middle part of the clutch guide groove and the rotating shaft I is vertical to the clutch rocker arm; one end of the clutch rocker arm, which is far away from the driving rocker arm, is provided with a clutch connecting post, and the clutch connecting post is used for connecting a clutch cable so as to drive the clutch cable to complete clutch operation through the clutch rocker arm.

3. The agricultural machine walking operating mechanism of claim 2, wherein: the side, provided with the gear shifting transmission column, of the driving rocker arm is provided with a plate-shaped gear shifting rocker arm in parallel, the gear shifting rocker arm is rotatably connected with the operating frame through a rotating shaft III in the same direction as the rotating shaft I, a V-shaped gear shifting guide notch is formed in the gear shifting rocker arm, the gear shifting transmission column is located in the gear shifting guide notch so as to drive the gear shifting rocker arm to swing around the rotating shaft III through the driving rocker arm, a gear shifting connecting column which is eccentrically arranged with the rotating shaft III is arranged on the gear shifting rocker arm, and the gear shifting transmission column is in transmission connection with the gear shifting rocker arm and is connected with a gear shifting pull rod through the gear shifting connecting column; when separation and reunion guide post is located separation and reunion guiding groove middle part, the transmission post that shifts is located the guide breach central point that shifts and offsets so that improve the degree of cooperation of separation and reunion operation and the operation of shifting with the guide breach both sides wall of shifting.

4. The agricultural machine walking operating mechanism of claim 2, wherein: the middle part of the driving rocker arm is provided with a connecting hole for penetrating a rotating shaft I, tubular stabilizing parts are convexly formed on two side surfaces of the driving rocker arm, the stabilizing parts are concentric with the connecting hole and have the same inner diameter, and the rotating shaft I is respectively in rotating fit with the connecting hole and the inner wall of the stabilizing part; the stabilizing part is fixedly connected with a gear shifting rocker, and the gear shifting transmission column is convexly formed on the gear shifting rocker.

5. The agricultural machine walking operating mechanism of claim 2, wherein: the outer rotatable cover of separation and reunion guide post is equipped with the guide pulley, and the diameter and the separation and reunion guiding groove width phase-match of guide pulley, guide pulley are arranged in the separation and reunion guiding groove, and the separation and reunion guide post passes through guide pulley and the rolling cooperation of separation and reunion guiding groove.

6. The agricultural machine walking operating mechanism of claim 1, characterized in that: the input end is rotatably connected with the lower end of the operating rod through a rotating shaft IV arranged along the width direction of the driving rocker arm.