CN204027539U - A kind of cutterhead height detecting device of sugar-cane cutting machine - Google Patents

Abstract

The utility model relates to a cutter head height detection device of a sugarcane harvester, which comprises a fixed plate, a side plate, a rotating shaft, a swing arm, an angular displacement sensor and a rubber wheel. The two ends of the rotating shaft are respectively connected to the fixed plate and the side plate through bearings. connection, the torsion spring and the swing arm are both sleeved on the rotating shaft, and the swing arm and the rotating shaft are connected by a spline, the lower end of the swing arm is provided with a rubber wheel, and the two ends of the torsion spring are respectively connected to the fixed plate and the swing arm Fixed connection, the angular displacement sensor is fixed on the side plate through the mounting bracket, and the central axis of the angular displacement sensor is coaxially connected with the rotation axis. In the cutter head height detection device of the present utility model, the swing arm swings up and down with the undulation of the ground, and the rotating shaft connected with the swing arm is connected with the angular displacement sensor, so that the included angle between the swing arm and the vertical direction can be detected in real time, and then The actual height of the cutter head from the ground is calculated by the effective length and angle of the swing arm, which effectively solves the detection problem of the cutter head height.

Description

A cutterhead height detection device of a sugarcane harvester

technical field

The utility model relates to the technical field of sugarcane harvesting machinery, in particular to a cutter head height detection device of a sugarcane harvester.

Background technique

The harvesting of sugarcane has special harvesting requirements, for example, it is required to remove the top cane tips during the harvesting process, and it is required to peel off the outer cane leaves to reduce the rate of broken heads. A more tedious labor. For a long time, due to the special requirements of sugarcane harvesting, my country has mostly adopted manual harvesting, which leads to a large amount of human labor, low efficiency and high cost. At present, my country's sugarcane planting is mostly in the south, and the hilly terrain is not suitable for foreign high-power sugarcane harvesters. Secondly, the ground conditions of the sugarcane planting ground are relatively complicated, and the walking of the sugarcane harvester is required to have strong adaptability to different ground conditions, reduce the broken head rate, and ensure normal growth in the second year. In addition, the sugar factories in my country are far away from the planting places, so the sugarcane harvesting is required to be based on the whole rod type, and the integrity of the sugarcane epidermis is guaranteed to prevent sugar loss. These are problems to be solved urgently in the process of sugarcane harvesting in my country.

Utility model content

The purpose of this utility model is to solve the deficiencies of the above-mentioned technical problems and provide a cutter head height detection device for sugarcane harvesters. The sensor connection can detect the angle between the swing arm and the vertical direction in real time, and then calculate the actual height of the cutter head from the ground through the effective length and angle of the swing arm, effectively solving the problem of detecting the height of the cutter head.

In order to solve the deficiencies of the above technical problems, the utility model adopts the technical scheme as follows: a cutter head height detection device of a sugarcane harvester, the sugarcane harvester includes a sugarcane guide plate and a cutting cutter head, and the sugarcane guide plate is arranged on the cutting head The front end of the sugarcane guide plate is symmetrically provided with a cutter height detection device on both sides of the sugarcane guide plate. The cutter height detection device includes a fixed plate, a side plate, a rotating shaft, a swing arm, an angular displacement sensor and a rubber wheel. The ends are respectively connected to the fixed plate and the side plate through bearings. Both the torsion spring and the swing arm are sleeved on the rotating shaft, and the swing arm and the rotating shaft are connected by splines. The lower end of the swing arm is provided with a rubber wheel, and the torsion spring The two ends of each are fixedly connected with the fixed plate and the swing arm respectively, the angular displacement sensor is fixed on the side plate through the mounting bracket, and the central axis of the angular displacement sensor is coaxially connected with the rotating shaft.

Both the fixed plate and the rotating shaft are provided with torsion spring slots, and the two ends of the torsion spring are placed in the torsion spring slots of the fixed plate and the rotating shaft respectively.

A blind hole is provided on the end surface of the rotating shaft facing one end of the angular displacement sensor, and the central axis of the angular displacement sensor is placed in the blind hole and fixedly connected by fastening bolts.

The fixing frame is provided with mounting holes, and the cutterhead height detection device is fixed on the sugarcane guide plate through the mounting holes on the fixing frame.

Beneficial effect

1. In the cutterhead height detection device of the present invention, the swing arm swings up and down with the undulation of the ground, and the rotation shaft connected to the swing arm is connected to the angular displacement sensor, which can detect the included angle between the swing arm and the vertical direction in real time , and then calculate the actual height of the cutter head from the ground through the effective length and angle of the swing arm, which effectively solves the detection problem of the cutter head height.

2. In the cutter head height detection device of the present invention, the swing arm is in a dragged state when the vehicle body moves forward. Even if the rubber wheel at the lower end is entangled by cane leaves, weeds or mud, it cannot even rotate. At this time, the rubber wheel is in a dragged state. In the moving state, the swing of the swing arm will still not be affected, and the detection device can also work well, and the detection can be performed normally.

3. In the cutterhead height detection device of the present invention, the rotating bearing at the upper end of the swing arm only bears part of the gravity of the swing arm and the wheels, so the radial load on the bearing is small and constant, which can effectively prolong the service life.

Description of drawings

Fig. 1 is the structural representation of the cutter head height detecting device of the present utility model;

Fig. 2 is the overall schematic diagram of the exterior of the cutter head height detection device of the present invention;

Fig. 3 is a schematic diagram of the connection relationship between the cutterhead height detection device of the present invention and the sugarcane guide plate;

Fig. 4 is the structure schematic diagram that the cutter head height detection device of the present utility model is contained on the sugarcane harvester;

Marks in the figure: 1, sugarcane guide plate, 2, cutting cutter head, 3, fixed plate, 4, side plate, 5, rotating shaft, 6, swing arm, 7, angular displacement sensor, 8, rubber wheel, 9, torsion Reed slot, 10, blind hole, 11, fastening bolt, 12, mounting hole, 13, torsion spring, 14, mounting bracket.

Detailed ways

As shown in the figure, a cutter head height detection device of a sugarcane harvester, the sugarcane harvester includes a sugarcane guide plate 1 and a cutting cutter head 2, the sugarcane guide plate 1 is arranged at the front end of the cutting cutter head 2, and the sugarcane guide plate 1 Both sides are symmetrically provided with a cutter head height detection device, which includes a fixed plate 3, a side plate 4, a rotating shaft 5, a swing arm 6, an angular displacement sensor 7, a rubber wheel 8, and a torsion spring 13. Mounting holes 12 are arranged on the fixed frame, and the cutter head height detecting device is fixed on the sugarcane guide plate 1 through the mounting holes 12 on the fixed frame.

The two ends of the rotating shaft 5 are respectively connected to the fixed plate 3 and the side plate 4 through bearings. In this embodiment, the fixed plate 3 and the rotating shaft 5 are provided with a torsion spring slot 9, and the two ends of the torsion spring are respectively placed in a fixed position. In the torsion spring slot 9 of the plate 3 and the rotating shaft 5. The torsion spring 13 and the swing arm 6 are both sleeved on the rotating shaft 5. In the present embodiment, the swing arm 6 is an arc swing arm, and the swing arm 6 and the rotating shaft 5 are connected by splines. Spring 13 gives swing arm 6 a pretightening force, makes swing arm 6 lower end rubber wheels 8 close to the ground all the time in the course of work. The lower end of the swing arm 6 is provided with a rubber wheel 8, and the two ends of the torsion spring are fixedly connected with the fixed plate 3 and the swing arm 6 respectively, and the angular displacement sensor 7 is fixed on the side plate 4 by the mounting bracket 14, and the angular displacement sensor 7 Coaxial connection between the central axis and the rotating shaft 5, the end face of the rotating shaft 5 in the present embodiment towards the end of the angular displacement sensor 7 is provided with a blind hole 10, the central axis of the angular displacement sensor 7 is inserted into the blind hole 10, and passed through the tight Fixed bolt 11 is fixedly connected. The rubber wheel 8 is installed on the lower end of the arc swing arm 6, and can rotate independently, and can swing together with the arc swing arm 6. When the swing arm 6 swings, it drives the rotation shaft 5 and the angular displacement sensor 7 to rotate synchronously. Arm length and angle of rotation can be used to calculate the height of the cutting edge of the cutter head from the ground. And the swing arm 6 is in the state of being dragged when advancing with the vehicle body, even if the rubber wheel 8 at the lower end is entangled by sugarcane leaves, weeds or mud, and even cannot rotate, the rubber wheel 8 is in the state of being dragged, and the swing arm will not be affected. 6, the detection device can also work well, and can normally detect.

Claims (4)

1. the cutterhead height detecting device of a sugar-cane cutting machine, sugar-cane cutting machine comprises sugarcane guide plate (1) and cutter plate (2), sugarcane guide plate (1) is arranged on the front end of cutter plate (2), and the symmetria bilateralis of sugarcane guide plate (1) is provided with cutterhead height detecting device, it is characterized in that: described cutterhead height detecting device comprises fixed head (3), side plate (4), rotation axis (5), swing arm (6), angular displacement sensor (7), rubber wheel (8) and torsion spring (13), the two ends of rotation axis (5) are connected with side plate (4) respectively at fixed head (3) by bearing, torsion spring (13) and swing arm (6) are all set on rotation axis (5), and pass through spline joint between swing arm (6) and rotation axis (5), the lower end of described swing arm (6) arranges rubber wheel (8), the two ends of torsion spring (13) are fixedly connected with swing arm (6) with fixed head (3) respectively, angular displacement sensor (7) is fixed on side plate (4) by mounting bracket (14), and be coaxially connected between the central shaft of angular displacement sensor (7) with rotation axis (5).

2. the cutterhead height detecting device of a kind of sugar-cane cutting machine as claimed in claim 1, it is characterized in that: described fixed head (3) and rotation axis (5) are equipped with torsion spring draw-in groove (9), the two ends of torsion spring (13) are placed in the torsion spring draw-in groove (9) of fixed head (3) and rotation axis (5) respectively.

3. the cutterhead height detecting device of a kind of sugar-cane cutting machine as claimed in claim 1, it is characterized in that: described rotation axis (5) is provided with blind hole (10) towards the end face of angular displacement sensor (7) one end, the central shaft of angular displacement sensor (7) inserts blind hole (10), and is fixedly connected with by fastening bolt (11).

4. the cutterhead height detecting device of a kind of sugar-cane cutting machine as claimed in claim 1, it is characterized in that: described fixed mount is provided with mounting hole (12), cutterhead height detecting device is fixed on sugarcane guide plate (1) by the mounting hole (12) on fixed mount.