Linkage gear shifting control mechanism of corn harvester

Abstract

The utility model discloses a linkage gear shifting control mechanism of a corn harvester, which comprises a control rod welding part, a gear rocker arm welding part, a first pull rod assembly and a transition rocker arm welding part, and is characterized in that the bottom end of the control rod welding part is fixedly connected with the gear rocker arm welding part, and the front end of the bottom of the gear rocker arm welding part is rotatably connected with a second pull rod assembly; a first pull rod assembly is rotationally connected to the rear end of the bottom of the gear rocker arm welding part, a transition rocker arm welding part is rotationally connected to the bottom end of the first pull rod assembly, an engine body is arranged at the bottom end of the second pull rod assembly, and one end of the transition rocker arm welding part is movably connected with the engine body. According to the gearbox gear selecting rocker arm welding device, the operating rod welding device and the gear rocker arm welding device are arranged, a clutch pedal is treaded down, the operating rod welding device is operated to swing leftwards, at the moment, the gearbox gear selecting rocker arm welding device is in a working state, gear selecting and gear shifting are achieved through left-right-front-back swing of the operating rod welding device, and therefore switching of multiple gears is achieved, and switching of the lowest gear is completed at the moment.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery shifting mechanisms, in particular to a corn harvester linked shifting operating mechanism. Background Art

[0002] Corn harvesters operate under complex conditions, requiring them to adapt to varying speeds and operating conditions. To address these complex conditions, transmissions with multiple gears require linkage. This requires a matching linkage shift mechanism. Currently, the most common linkage shift mechanism consists of two pins, a torsion spring, a welded connecting sleeve and its support, a welded control lever, and two tie rod assemblies. This results in a complex structure and high cost. Utility Model Content

[0003] The purpose of the utility model is to provide a linkage shift operating mechanism for a corn harvester. By operating the joystick weld to swing to the left, the gear selection rocker arm weld of the transmission is in a working state. The left and right and front and back swings of the joystick weld are used to realize the selection and shifting of gears, thereby realizing the switching of multiple gears.

[0004] To achieve the above-mentioned purpose, a corn harvester linkage shift control mechanism is provided, including: an operating lever weld, a gear rocker arm weld, a first pull rod assembly and a transition rocker arm weld, characterized in that the bottom end of the operating lever weld is fixedly connected to the gear rocker arm weld, the bottom front end of the gear rocker arm weld is rotatably connected to the second pull rod assembly, the bottom rear end of the gear rocker arm weld is rotatably connected to the first pull rod assembly, the bottom end of the first pull rod assembly is rotatably connected to the transition rocker arm weld, the bottom end of the second pull rod assembly is provided with an engine body, and one end of the transition rocker arm weld is movably connected to the engine body.

[0005] According to the corn harvester linkage shift control mechanism, the second pull rod assembly is trapezoidal.

[0006] According to the corn harvester linkage shift control mechanism, both upper and lower ends of the first pull rod assembly are rotatably engaged with a rotating shaft.

[0007] According to the corn harvester linkage shift control mechanism, the gear rocker arm is welded into an L-plate shape and is arranged horizontally.

[0008] Compared with the prior art, the beneficial effects of the present invention are:

[0009] 1. The utility model requires a small number of parts, has a simple structure, is sensitive to operation, and can easily achieve linked shifting.

[0010] 2. The utility model is provided with a joystick weld and a gear rocker arm weld. When the clutch pedal is stepped on and the joystick weld is swung to the left, the gear selection rocker arm weld of the transmission is in the working state. The gear selection and shifting are realized by swinging the joystick weld left and right and forward and backward, thereby realizing the switching of multiple gears. At the same time, the joystick weld is pushed forward to complete the switching to the lowest speed gear.

[0011] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0013] Figure 1 The utility model is a three-dimensional structural diagram of a linkage shift control mechanism of a corn harvester.

[0014] In the figure: 1. Joystick welding; 2. Gear rocker arm welding; 3. First tie rod assembly; 4. Second tie rod assembly; 5. Transition rocker arm welding. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the utility model.

[0016] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only used to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting the present invention. The terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In addition, unless otherwise expressly specified or limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, they can be fixedly connected, detachably connected, or integrally connected; they can be mechanically connected or electrically connected; they can be directly connected or indirectly connected through an intermediate medium, or they can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0017] See also Figure 1 The utility model provides a technical solution: a corn harvester linked gear shift operating mechanism, which includes: an operating lever weld 1, a gear rocker arm weld 2, a first pull rod assembly 3 and a transition rocker arm weld 5. The bottom end of the operating lever weld 1 is fixedly connected to the gear rocker arm weld 2. When the operating lever weld 1 is swung left, the gear selection rocker arm weld 2 of the transmission is in a working state. The gear selection and shifting are achieved by swinging the operating lever weld 1 left and right and front and back, thereby achieving the switching of multiple gears. At the same time, the operating lever weld 1 is pushed forward. At this time, the lowest speed gear is switched. The gear rocker arm weld 2 is in an L-plate shape. The L-shaped structure of the gear rocker arm weld 2 can rotatably connect the first pull rod assembly 3 and the second pull rod assembly 4, so as to adjust and change the gear. It is arranged horizontally, and the bottom front end of the gear rocker arm weld 2 is rotatably connected to the second pull rod assembly 4. The bottom rear end of the weld 2 is rotatably connected to the first pull rod assembly 3. Through the different rotation controls of the first pull rod assembly 3 and the second pull rod assembly 4, the corresponding different gears improve the adjustment effect. The upper and lower ends of the first pull rod assembly 3 are rotatably matched with a rotating shaft. The rotating shaft structure can support the rotation of both ends of the first pull rod assembly 3 to control the gear. The bottom end of the first pull rod assembly 3 is rotatably connected to the transition rocker arm weld 5. The gear control is completed through the connection between the transition rocker arm weld 5 and the engine body. At the same time, based on the small number of parts of the overall structure and simple subsequent maintenance, it achieves low-cost use while achieving the desired effect and increases convenience. The bottom end of the second pull rod assembly 4 is provided with an engine body, and one end of the transition rocker arm weld 5 is movably connected to the engine body. The second pull rod assembly 4 is trapezoidal, and the trapezoidal structure improves the connection effect of the pull rod and can maintain the required stability.

[0018] Working principle: When the corn harvester needs to switch to the lowest speed gear during field operation, step on the clutch pedal and operate the joystick welding 1 to swing to the left. At this time, the gear selection rocker arm welding 2 of the transmission is in working state. The gear selection and shifting are achieved by swinging the joystick welding 1 left and right and forward and backward, thereby realizing the switching of multiple gears. At the same time, push the joystick welding 1 forward to complete the switching to the lowest speed gear.

[0019] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A corn harvester linkage shift control mechanism, comprising: The joystick weld (1), the gear rocker arm weld (2), the first pull rod assembly (3) and the transition rocker arm weld (5) are characterized in that the bottom end of the joystick weld (1) is fixedly connected to the gear rocker arm weld (2), the bottom front end of the gear rocker arm weld (2) is rotatably connected to the second pull rod assembly (4), the bottom rear end of the gear rocker arm weld (2) is rotatably connected to the first pull rod assembly (3), the bottom end of the first pull rod assembly (3) is rotatably connected to the transition rocker arm weld (5), the bottom end of the second pull rod assembly (4) is provided with an engine body, and one end of the transition rocker arm weld (5) is movably connected to the engine body.

2. The corn harvester linkage shift control mechanism according to claim 1, characterized in that: The second pull rod assembly (4) is trapezoidal.

3. The corn harvester linkage shift control mechanism according to claim 1, characterized in that: The upper and lower ends of the first pull rod assembly (3) are rotatably engaged with rotating shafts.

4. The corn harvester linkage shift control mechanism according to claim 1, characterized in that: The gear rocker arm weld (2) is in an L-plate shape and is arranged transversely.

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