Automatic rising device applied to returning machine during reversing of corn machine

Abstract

The utility model relates to the technical field of returning machines, and discloses an automatic rising device for a returning machine during reversing of a corn machine, which comprises an armrest box, a gear handle is arranged in an inner cavity of the armrest box, a rising switch is mounted on the outer wall of the armrest box, and a mounting rack is arranged on the right side of the armrest box. The automatic lifting device comprises a mounting rack, telescopic equipment is fixedly mounted on the inner wall of the mounting rack, a movable frame is mounted at the top of the telescopic equipment, and an oil cylinder is mounted on the inner wall of the mounting rack. When a gear handle on the device is manually engaged to a car gear, the gear handle triggers a reversing mechanism in an inner cavity of an armrest box, and meanwhile, contraction power of an oil cylinder is braked, so that a telescopic rod on the device is contracted, a crushing cutter is upwards lifted, and the crushing cutter is prevented from being damaged by unnecessary collision during reversing.

Description

Technical Field

[0001] The utility model relates to the technical field of field return machines, in particular to an automatic rising device for a field return machine when a corn harvester is reversing. Background Art

[0002] The lifting device of the field return machine usually realizes the lifting function through mechanical or hydraulic transmission; mechanical transmission methods such as hand-cranked mechanical transmission change the length of the wire rope through components such as wire rope, drum pulley, and shaking handle, thereby causing the field return machine components to rise or fall around a certain axis (such as the front axle of the reduction gearbox); the hydraulic transmission method uses the extension and contraction of the hydraulic cylinder to push the field return machine up and down.

[0003] The existing automatic rising device of the field return machine used when the corn harvester is reversing can refer to the Chinese utility model patent with authorization announcement number CN220402446U, which discloses an automatic rising device of the field return machine used when the corn harvester is reversing, "including an armrest box, an automatic rising switch is provided on the top of the armrest box, a walking handle is provided on the top of the armrest box and on one side of the automatic rising switch, a reversing switch is provided on one side of the armrest box and below the walking handle, a terminal controller is provided below the armrest box, a solenoid valve is provided on the outside of one side of the armrest box, an oil pipe is provided on the bottom of the solenoid valve, an oil cylinder is connected to the bottom end of the oil pipe, and a field return machine rotatably connected to the output shaft of the oil cylinder is provided below the terminal controller."

[0004] When the above device is in use, the existing device adopts that when the operator needs to reverse in the field, after the reversing switch receives a signal, the internal program of the terminal controller controls the power of the electromagnetic hydraulic valve, thereby realizing the reversing and automatic rising of the return machine, avoiding damage to the return machine caused by the operator forgetting to lift the return machine when reversing. However, based on this design, in order to avoid the return machine bucket part forgetting to rise when reversing, the reverse gear can be set to simultaneously trigger the elevation mechanism of the return machine part to avoid damage to the return machine. When the corn machine moves in the field, when it is necessary to actively avoid ground objects, the height of the return machine part can be selected to increase, actively avoid, and avoid excessive operations. Therefore, a device for automatically rising the return machine when the corn machine is reversing is needed to solve the above problems. Summary of the Invention

[0005] In response to the deficiencies in the prior art, the utility model provides an automatic lifting device for a field return machine when a corn harvester is reversing, which has the advantages of automatically raising the elevation angle and active avoidance, and solves the problems raised by the above-mentioned background technology.

[0006] The utility model provides the following technical solutions: an automatic lifting device for a field return machine used when a corn harvester is reversing, comprising an armrest box, an inner cavity of the armrest box being provided with a gear handle, an outer wall of the armrest box being provided with a lifting switch, a mounting frame being provided on the right side of the armrest box, a telescopic device being fixedly mounted on the inner wall of the mounting frame, a movable frame being mounted on the top of the telescopic device, an oil cylinder being mounted on the inner wall of the mounting frame, a connecting frame being fixedly connected to the outer wall of the movable frame, a side of the connecting frame away from the movable frame being movably connected to a locomotive bucket, a rotating motor being mounted on the outer wall of the locomotive bucket, a crushing knife being fixedly connected to the power output shaft of the rotating motor, a pressure roller being fixedly connected to the outer wall of the locomotive bucket, and a telescopic rod being connected to the outer wall of the oil cylinder.

[0007] As a preferred technical solution of the present invention, the shift handle is moved to the left under manual control, and the bottom of the shift handle is deflected to the right in the inner cavity of the armrest box.

[0008] As a preferred technical solution of the present invention, a slide bar is provided on the top of the mounting frame, and the inner walls on both sides of the movable frame slide up and down along the outer walls of the slide bar.

[0009] As a preferred technical solution of the present invention, the oil cylinder is arranged directly above the movable frame, and the oil cylinder slides along with the movable frame.

[0010] As a preferred technical solution of the present invention, a rotating shaft is fixedly connected to the power output shaft of the rotating motor, and the rotating motor is connected to the crushing knife through the rotating shaft.

[0011] As a preferred technical solution of the present invention, the other side of the telescopic rod away from the oil cylinder is connected to the locomotive bucket, and the oil cylinder controls the telescopic rod to extend and retract its length.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The device is used to automatically raise the field return machine when the corn harvester is reversing. Through the coordinated use of the gear handle, armrest box, oil cylinder, telescopic rod and crushing knife on the device, when the gear handle on the device is manually engaged in the vehicle gear, the gear handle triggers the reversing mechanism in the inner cavity of the armrest box and simultaneously brakes the contraction power of the oil cylinder, thereby contracting the telescopic rod on the device and lifting the crushing knife upward, thereby avoiding unnecessary collision damage to the crushing knife during reversing.

[0014] 2. The device is applied to the automatic rising device of the field return machine when the corn harvester is reversing. Through the mutual use of the rising switch, telescopic equipment and movable frame on the device, after the rising switch on the device is manually pressed, the rising switch is used to send an extension command to the telescopic device, so that the telescopic device on the device pushes the movable frame and the oil cylinder to rise, thereby making the locomotive bucket on the device rise synchronously, thereby preventing the locomotive bucket and crushing knife and other structures from being too close to the ground, causing friction with the ground or actively avoiding objects on the ground. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the three-dimensional cross-sectional structure of the utility model;

[0017] Figure 3 For this utility model Figure 2 A schematic diagram of the structure at center A;

[0018] Figure 4 It is a schematic diagram of the three-dimensional structure on the right side of the utility model.

[0019] In the figure: 1. Armrest box; 2. Shift handle; 3. Up switch; 4. Mounting frame; 5. Telescopic device; 6. Movable frame; 7. Oil cylinder; 8. Connecting frame; 9. Locomotive bucket; 10. Rotating motor; 11. Crushing knife; 12. Pressing roller; 13. Telescopic rod. DETAILED DESCRIPTION

[0020] 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 present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figure 1-Figure 4The lifting mechanism of the lifting device is as follows: a lifting mechanism for lifting the lifting frame 1 and a lifting mechanism for lifting the lifting frame 1; a lifting mechanism for lifting the lifting lifting frame 1; a lifting mechanism for lifting the lifting lifting frame 1; a lifting mechanism for lifting the lifting lifting frame 1; a lifting mechanism for lifting the lifting lifting frame 1; a lifting mechanism for lifting the lifting lifting frame 1; a lifting mechanism for lifting the lifting lifting frame 1; a lifting mechanism for lifting the lifting lifting frame 1; a lifting mechanism for lifting the lifting lifting frame 1; a lifting mechanism for lifting the lifting lifting frame 1; a lifting mechanism for lifting the lifting lifting frame 1; a lifting mechanism for lifting the lifting lifting frame 1

[0022] In a preferred embodiment, the shift handle 2 is moved to the left under manual control, and the bottom of the shift handle 2 is deflected to the right in the inner cavity of the armrest box 1. By moving the shift handle 2 on the device to the left under manual control, when the shift handle 2 on the device is engaged in the vehicle gear under manual control of the driver, the shift handle 2 is manually moved to the left, and the shift handle 2 arranged in the inner cavity of the armrest box 1 triggers the reversing mechanism, so that when the shift handle 2 on the device triggers the reversing mechanism, the oil cylinder 7 is synchronously put into a retracted state.

[0023] In a preferred embodiment, a sliding rod is provided on the top of the mounting frame 4, and the inner walls on both sides of the movable frame 6 slide up and down along the outer walls of the sliding rod. By providing a sliding rod on the top of the mounting frame 4 on the device, when the telescopic device 5 on the device outputs telescopic power at the bottom of the movable frame 6, the movable frame 6 is used to slide along the outer wall of the sliding rod of the mounting frame 4, so that the movable frame 6 on the device can slide up and down in a balanced manner left and right.

[0024] In a preferred embodiment, the oil cylinder 7 is arranged directly above the movable frame 6, and the oil cylinder 7 slides with the movable frame 6. By setting the oil cylinder 7 on the device directly above the movable frame 6, when the movable frame 6 on the device slides up and down, the oil cylinder 7 on the device slides synchronously, and the movable frame 6 always maintains the same distance from the oil cylinder 7, so that the movable frame 6 on the device drives the locomotive bucket 9 to change in height when sliding, and the oil cylinder 7 brakes synchronously, thereby not affecting the change in the angle of the locomotive bucket 9.

[0025] In a preferred implementation, the power output shaft of the rotating motor 10 is fixedly connected with a rotating shaft, and the rotating motor 10 is connected with the crushing knife 11 through the rotating shaft. The rotating shaft is fixedly connected with the power output shaft of the rotating motor 10 on the device, so that when the rotating motor 10 on the device outputs rotating power, the rotating shaft drives the crushing knife 11 to rotate, so that the crushing knife 11 on the device works on the corn straw on the ground.

[0026] In a preferred implementation, the other side of the telescopic rod 13 away from the oil cylinder 7 is connected with the locomotive hopper 9, and the oil cylinder 7 controls the telescopic rod 13 to extend or retract. The telescopic rod 13 away from the oil cylinder 7 on the device is connected with the locomotive hopper 9, so that when the oil cylinder 7 on the device outputs telescopic power, the length of the telescopic rod 13 on the device changes, so that the telescopic rod 13 on the device controls the locomotive hopper 9 on the other side to be driven to change the elevation angle, and then the telescopic rod 13 on the device lifts the elevation angle of the crushing knife 11 and the compression roller 12 when it is retracted.

[0027] The working principle is that the gear handle 2, the handrail box 1, the oil cylinder 7, the telescopic rod 13, and the crushing knife 11 are used in cooperation, so that when the gear handle 2 on the device is manually engaged to the gear, the gear handle 2 triggers the reverse mechanism in the inner cavity of the handrail box 1 and simultaneously brakes the retraction power of the oil cylinder 7, so that the telescopic rod 13 on the device is retracted, the crushing knife 11 is raised upward, and then unnecessary collision damage of the crushing knife 11 is avoided when reversing. The ascending switch 3, the telescopic device 5, and the movable frame 6 are used in cooperation, so that after the ascending switch 3 on the device is manually pressed, the telescopic device 5 is pushed by the ascending switch 3 to extend the telescopic device 5, so that the movable frame 6 and the oil cylinder 7 on the device are lifted, so that the locomotive hopper 9 on the device is lifted synchronously, and then the structures such as the locomotive hopper 9 and the crushing knife 11 are prevented from being too close to the ground to rub against the ground or actively avoid the objects on the ground.

[0028] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements, and modifications can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An automatic raising device for a corn harvester when the corn harvester is reversing, comprising an armrest box (1), characterized in that: The inner cavity of the armrest box (1) is provided with a shift handle (2), the outer wall of the armrest box (1) is installed with a rising switch (3), the right side of the armrest box (1) is provided with a mounting frame (4), the inner wall of the mounting frame (4) is fixedly installed with a telescopic device (5), the top of the telescopic device (5) is installed with a movable frame (6), the inner wall of the mounting frame (4) is installed with an oil cylinder (7), the outer wall of the movable frame (6) is fixedly connected with a connecting frame (8), the side of the connecting frame (8) away from the movable frame (6) is movably connected with a locomotive bucket (9), the outer wall of the locomotive bucket (9) is installed with a rotating motor (10), the power output shaft of the rotating motor (10) is fixedly connected with a crushing knife (11), the outer wall of the locomotive bucket (9) is fixedly connected with a pressure roller (12), and the outer wall of the oil cylinder (7) is connected with a telescopic rod (13).

2. The automatic raising device for a corn harvester when reversing according to claim 1 is characterized in that: The shift handle (2) is moved to the left under manual control, and the bottom of the shift handle (2) is deflected to the right in the inner cavity of the armrest box (1).

3. The automatic raising device for a corn harvester when reversing according to claim 1 is characterized in that: A slide bar is provided on the top of the mounting frame (4), and the inner walls on both sides of the movable frame (6) slide up and down along the outer walls of the slide bar.

4. The automatic raising device for a corn harvester when reversing according to claim 1 is characterized in that: The oil cylinder (7) is arranged directly above the movable frame (6), and the oil cylinder (7) slides along with the movable frame (6).

5. The automatic raising device for a corn harvester when reversing according to claim 1 is characterized in that: A rotating shaft is fixedly connected to the power output shaft of the rotating motor (10), and the rotating motor (10) is connected to the crushing knife (11) via the rotating shaft.

6. The automatic raising device for a corn harvester when reversing according to claim 1 is characterized in that: The other side of the telescopic rod (13) away from the oil cylinder (7) is connected to the locomotive bucket (9), and the oil cylinder (7) controls the telescopic rod (13) to extend and retract its length.

Images