Crawler-type cane harvester control mechanism

Abstract

The utility model discloses a crawler-type cane harvester control mechanism which comprises a fixing plate, a swing frame, a control rod and a pull rod, the swing frame is rotationally connected to the fixing plate, the swing frame is fixedly connected with the control rod and the pull rod respectively, the control rod is used for operation of workers, the pull rod is connected with an HST valve, and the HST valve is connected with the swing frame. A mounting pipe is arranged at the position, different from the rotating axis of the swing frame, of the surface of the swing frame, a through hole is formed in the surface of the mounting pipe, a marble is arranged in the through hole, a positioning piece is arranged at an orifice in one end of the through hole in a penetrating mode and used for fixing the marble, an arc-shaped hole is formed in the surface of the fixing plate, and a groove is formed in the middle of the arc-shaped hole. The groove is used for positioning the marble, the orifice at the other end of the through hole is aligned with the arc-shaped hole, the marble is pressed at the orifice of the arc-shaped hole by the positioning piece, and the width of the arc-shaped hole is smaller than that of the marble.

Description

Technical Field

[0001] The utility model relates to a control mechanism for a crawler type sugarcane harvester. Background Art

[0002] At present, for the crawler type sugarcane cutting and piling machine on the market, the main traveling mode is to control the HST with a joystick and then cooperate with the corresponding gear shift to realize the forward and backward movement of the vehicle. During use, because the neutral position needs to rely on the feel to stop the joystick at the neutral position to stop the vehicle, some vehicles use the Z-shaped notch method to find the neutral position. Although the neutral position can be quickly found in this way, there is a certain gap between the notch and the joystick. When the vehicle is working at high throttle, it cannot stop precisely, and there will be a phenomenon of forward or backward slipping. Most solutions are to reduce the throttle or switch the vehicle gear state to the neutral gear mode, which is not conducive to the safety of the vehicle during work, and this structure occupies a relatively large space in the cab. When the vehicle continues to work, it is necessary to adjust the electronic throttle to the corresponding position and then switch the gear, which is time-consuming. Content of the Utility Model

[0003] The purpose of the utility model is to solve the above-mentioned deficiencies of the prior art and provide a control mechanism for a crawler type sugarcane harvester.

[0004] A control mechanism for a crawler type sugarcane harvester includes a fixed plate, a swing frame, a joystick, and a pull rod. The swing frame is rotatably connected to the fixed plate, and the swing frame is fixedly connected to the joystick and the pull rod respectively. The joystick is used for the operator to operate, and the pull rod is connected to the HST valve. An installation pipe is provided on the surface of the swing frame at a position different from its rotation axis. Through holes are provided on the surface of the installation pipe, and marbles are provided in the through holes. A positioning member is inserted through one end orifice of the through hole for fixing the marbles. An arc-shaped hole is provided on the surface of the fixed plate, and a groove is provided at the middle of the arc-shaped hole for positioning the marbles. The other end orifice of the through hole is aligned with the arc-shaped hole, and the positioning member presses the marbles at the orifice of the arc-shaped hole. The width of the arc-shaped hole is smaller than the width of the marbles.

[0005] Preferably, the positioning member includes a positioning bolt and a positioning spring. The positioning bolt is threadedly connected to the inner wall of the through hole. The positioning spring is located between the marble and the bolt. One end of the positioning spring is connected to the bottom surface of the bolt, and the other end is connected to the marble.

[0006] Preferably, a first positioning nut is provided on the positioning bolt, and the first positioning nut is located at the orifice of the through hole.

[0007] Preferably, a rotating shaft is inserted through the center of rotation of the swing frame, and the rotating shaft is fixedly connected to the fixed plate.

[0008] Preferably, the rotating shaft sequentially passes through a second positioning nut, a flat washer, a compression spring, a pressing piece, the swing frame, a hard washer, and the fixed plate.

[0009] Preferably, rubber gaskets are provided between the swing frame and the pressing piece, and between the swing frame and the hard gasket.

[0010] Beneficial effects: Compared with the prior art, the utility model adopts a combined joystick device, which has a compact structure, large space utilization rate, and is convenient for sensor installation. The design in the form of marbles and marble holes is adopted to accurately determine the parking neutral position. The damping block is used to control the operating feel, effectively improving the accuracy, safety and convenience of operation. The straight groove design effectively saves the space in the cab and simplifies the structure. The form of the spring pressing the marble laterally is adopted to adjust the neutral feel, enabling the operator to more clearly confirm the parking neutral position. Description of the Drawings

[0011] Figure 1 is the front view of a control mechanism of a crawler type sugarcane harvester;

[0012] Figure 2 is the side sectional view of a control mechanism of a crawler type sugarcane harvester;

[0013] Figure 3 is the rear view of a control mechanism of a crawler type sugarcane harvester;

[0014] In the figure, 1. joystick, 2. fixed plate, 3. pull rod, 4. marble, 5. arc hole, 6. groove, 7. swing frame, 8. mounting pipe, 9. spring, 10. first positioning nut, 11. positioning bolt, 12. rotating shaft, 13. second positioning nut, 14. flat washer, 15. compression spring, 16. pressing piece, 17. rubber gasket, 18. hard gasket, 19. neutral position sensor, 20. neutral position sensing device. Detailed Implementation Modes

[0015] In order to deepen the understanding of the utility model, the following will further elaborate on the utility model in combination with embodiments and drawings. The embodiments are only used to explain the utility model and do not constitute a limitation to the protection scope of the utility model.

[0016] As Figures 1-3 shown, joystick 1, fixed plate 2, pull rod 3, marble 4, arc hole 5, groove 6, swing frame 7, mounting pipe 8, spring 9, first positioning nut 10, positioning bolt 11, rotating shaft 12, second positioning nut 13, flat washer 14, compression spring 15, pressing piece 16, rubber gasket 17, hard gasket 18, neutral position sensor 19, neutral position sensing device 20;

[0017] A control mechanism for a crawler sugarcane harvester, comprising a fixed plate 2, a swing frame 7, a control lever 1, and a pull rod 3. The swing frame 7 is rotatably connected to the fixed plate 2, and the swing frame 7 is fixedly connected to the control lever 1 and the pull rod 3 respectively. The control lever 1 is used for operation by the operator, and the pull rod 3 is connected to the HST valve. An installation pipe 8 is provided on the surface of the swing frame 7 at a position different from its rotation axis. Through holes are provided on the surface of the installation pipe 8, and marbles 4 are provided in the through holes. A positioning member is inserted through one end orifice of the through hole, and the positioning member is used to fix the marbles 4. An arc-shaped hole 5 is provided on the surface of the fixed plate 2, and a groove 6 is provided at the middle of the arc-shaped hole 5. The groove 6 is used for positioning the marbles 4. The other end orifice of the through hole is aligned with the arc-shaped hole 5, and the positioning member presses the marbles 4 against the orifice of the arc-shaped hole 5. The width of the arc-shaped hole 5 is smaller than the width of the marbles 4.

[0018] In this embodiment, the positioning member includes a positioning bolt 11 and a positioning spring 9. The positioning bolt 11 is threadedly connected to the inner wall of the through hole. The positioning spring 9 is located between the marble 4 and the bolt. One end of the positioning spring 9 is connected to the bottom surface of the bolt, and the other end is connected to the marble 4.

[0019] In this embodiment, a first positioning nut 10 is provided on the positioning bolt 11, and the first positioning nut 10 is located at the orifice of the through hole.

[0020] In this embodiment, a rotating shaft 12 is inserted through the center of rotation of the swing frame 7, and the rotating shaft 12 is fixedly connected to the fixed plate 2.

[0021] In this embodiment, the rotating shaft 12 sequentially passes through a second positioning nut 13, a flat washer 14, a compression spring 15, a pressing piece 16, the swing frame 7, a hard washer 18, and the fixed plate 2.

[0022] In this embodiment, rubber gaskets 17 are provided between the swing frame 7 and the pressing piece 16, and between the swing frame 7 and the hard washer 18.

[0023] Beneficial effects: Compared with the prior art, the present utility model adopts a combined control lever 1 device, which has a compact structure, large space utilization rate, and is convenient for installing sensors. The design of the marble 4 and the marble 4 hole form is adopted to accurately determine the parking neutral position. The damping block is used to control the operating feel, effectively improving the accuracy, safety and convenience of operation. The straight groove design effectively saves the space in the cab and simplifies the structure. The form of the spring 9 pressing the marble 4 laterally is adopted to adjust the neutral feel, enabling the operator to more clearly confirm the parking neutral position.

[0024] Instructions for use: The combined joystick 1 device is adopted and connected to the HST valve through the pull rod 3. During the process, the position of the ball 4 hole reserved on the mounting plate can be used to accurately find the neutral position. A compression spring 15 and a damping block are installed on the combined joystick 1, which can better enhance the operating feel. In complex working conditions, the handle position will not shift due to the bumping of the vehicle, affecting the harvesting speed of the vehicle. The tightness of the compression spring 15 is adjusted by the nut at the shaft end to control the effect of the damping block. The ball 4 in the neutral position adjusts the operating feel when cutting into the spring 9 hole through the spring 9 on the side. The straight groove design occupies less space and has a relatively simple structure compared to the Z-shaped groove design.

[0025] The joystick 1 drives the swing frame 7 to rotate, and the swing frame 7 then drives the pull rod 3 to move up and down, thereby completing the control of the HST and realizing the forward and backward movement of the crawler sugarcane cutting and stacking machine.

[0026] The swing frame 7 is welded to the joystick 1 and rotates with the joystick 1. The mounting pipe 8 and the neutral position sensing device 20 are welded to the swing frame 7. The neutral position sensor 19 and the reverse sensor are installed on the fixed plate 2. When the joystick 1 is in the neutral position, the neutral position sensor 19 is triggered and the machine stops; when the joystick 1 is pushed forward, the machine moves forward and the neutral position sensor 19 is in the off state; when the joystick 1 is pushed backward, the machine moves backward, and the protruding part on the swing frame 7 contacts the reverse sensor, and the sensor is activated and the reverse horn sounds.

[0027] The ball 4 is pressed on the ball 4 track by the adjusting bolt and the compression spring 15. The adjusting bolt can adjust the pressing force of the spring 9, and the fixing nut is responsible for locking. A groove 6 is provided in the middle position of the ball 4 track. When the ball 4 moves to the middle position, there will be a blocking feeling, and the joystick 1 can be accurately stuck in the middle position to avoid the phenomenon of the machine slipping forward or backward.

[0028] The swing frame 7 is clamped by two rubber gaskets 17, and the compression force of the compression spring 15 is adjusted by the second positioning nut 13, so that the joystick 1 has a certain damping, realizing more accurate speed control and a more comfortable operating feel.

[0029] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A control mechanism for a crawler-type sugarcane harvester, characterized in that, It includes a fixed plate, a swing frame, a control lever, and a pull rod. The swing frame is rotatably connected to the fixed plate. The swing frame is fixedly connected to the control lever and the pull rod respectively. The control lever is used for operation by the staff. The pull rod is connected to the HST valve. An installation pipe is provided on the surface of the swing frame at a position different from its rotation axis. Through holes are provided on the surface of the installation pipe, and marbles are provided in the through holes. A positioning member is inserted through one end orifice of the through hole. The positioning member is used to fix the marbles. An arc-shaped hole is provided on the surface of the fixed plate. A groove is provided at the middle of the arc-shaped hole. The groove is used for positioning the marbles. The other end orifice of the through hole is aligned with the arc-shaped hole. The positioning member presses the marbles at the orifice of the arc-shaped hole. The width of the arc-shaped hole is smaller than the width of the marbles.

2. The operating mechanism of a crawler cane harvester according to claim 1, characterized in that, The positioning member includes a positioning bolt and a positioning spring. The positioning bolt is threadedly connected to the inner wall of the through hole. The positioning spring is located between the marble and the bolt. One end of the positioning spring is connected to the bottom surface of the bolt, and the other end is connected to the marble.

3. The operating mechanism of a crawler cane harvester according to claim 2, characterized in that, A first positioning nut is provided on the positioning bolt. The first positioning nut is located at the orifice of the through hole.

4. The control mechanism of a crawler cane harvester according to claim 1, characterized in that, A rotating shaft is inserted through the center of rotation of the swing frame. The rotating shaft is fixedly connected to the fixed plate.

5. The operating mechanism of a crawler cane harvester according to claim 4, characterized in that, The rotating shaft sequentially passes through a second positioning nut, a flat washer, a compression spring, a pressing plate, the swing frame, a hard washer, and the fixed plate.

6. The operating mechanism of a crawler cane harvester according to claim 4, characterized in that, Rubber gaskets are provided between the swing frame and the pressing plate, and between the swing frame and the hard washer.

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