An electric control lifting structure of an agricultural implement

Abstract

The utility model discloses a kind of agricultural implement electric control lifting structures, including joystick, two opposite buckling assembly together left plug-in part and right plug-in part are equipped in the lower end of joystick, joystick includes handle shaft, the lower end of handle shaft is inserted into the cavity between left plug-in part and right plug-in part;The left and right sides of the lower end of handle shaft extend out left rotation shaft and right rotation shaft vertically, the left rotation shaft and right rotation shaft are coaxially arranged;It is equipped with mounting hole on left plug-in part and right plug-in part, bearing is equipped on left rotation shaft and right rotation shaft, and the left rotation shaft is rotatably mounted on the mounting hole of left plug-in part by bearing, and right rotation shaft is rotatably mounted on the mounting hole of right plug-in part by bearing;It further includes action sensor, and the action sensor is used to detect the action of handle shaft.The utility model replaces mechanical transmission by electric control, so that operating mode structure is simple, convenient;It can control the speed of agricultural implement lifting or descending, realizes accurate control.

Description

Technical Field

[0001] This utility model relates to an electronically controlled lifting structure for agricultural machinery, belonging to the field of electronically controlled lifting technology for agricultural machinery. Background Technology

[0002] Tractors typically use hydraulic suspension systems to attach implements for field operations. These systems control hydraulic cylinders via hydraulic directional valves to raise or lower the implements, adjusting their working depth. Wheeled tractors generally have rear-mounted implements. Since the lift mechanism is not directly connected to the power output, in normal operation, a hydraulic clutch controls the normal or interrupted power output, and then the lift handle on the lift mechanism is operated to raise or lower the implement.

[0003] Existing agricultural machinery lifting control systems utilize a joystick located in the cab. This joystick has two positions (lifting and lowering), and its mechanical transmission system actuates multiple hydraulic valves to control the lifting and lowering of the implement. This mechanical control method has several drawbacks: firstly, the mechanical transmission system is complex, with frictional resistance between components, making operation laborious and inconvenient; secondly, the joystick only offers two positions for on / off digital control, failing to control the lifting and lowering speed. In practical applications, when the lifting and lowering speed is too fast, the precision of the implement's movements cannot be guaranteed. Therefore, the existing technology clearly has inconveniences and shortcomings in practical use, necessitating improvement. Utility Model Content

[0004] This utility model addresses the shortcomings of the prior art by providing an electronically controlled lifting structure for agricultural machinery. By replacing mechanical transmission with electronic control, the operation method becomes simple and convenient; it can control the lifting or lowering speed of the agricultural machinery, achieving precise control.

[0005] To solve the above technical problems, the present invention adopts the following technical solution:

[0006] An electronically controlled lifting structure for agricultural machinery includes a control lever. The lower end of the control lever is provided with two mutually interlocking and assembled left and right connectors. The control lever includes a shift shaft, the lower end of which extends into the cavity between the left and right connectors.

[0007] Left and right rotating shafts extend vertically outward from the lower end of the rotary shaft, and the left and right rotating shafts are coaxially arranged.

[0008] Mounting holes are provided on both the left and right connectors, and bearings are fitted on both the left and right rotating shafts. The left rotating shaft is rotatably mounted on the mounting hole of the left connector through the bearing, and the right rotating shaft is rotatably mounted on the mounting hole of the right connector through the bearing.

[0009] It also includes a motion sensor for detecting the movement of the dial.

[0010] Furthermore, the motion sensor is a left micro switch and a right micro switch. The inner sides of the left connector and the right connector are provided with mounting bases. The left micro switch is mounted on the mounting base of the left connector, and the right micro switch is mounted on the mounting base of the right connector.

[0011] Push plates extend from the bottom of the dial shaft to both sides, and the push plates on both sides of the dial shaft cooperate with the left micro switch and the right micro switch, respectively.

[0012] Furthermore, the signal lines of the left and right microswitches are connected to the electronic control system.

[0013] Furthermore, the motion sensor is an angle sensor installed at the end of the right turn shaft, and the signal line of the angle sensor is connected to the electronic control system.

[0014] Furthermore, the left connector and the right connector are two parts with identical structure and shape.

[0015] Furthermore, the left and right connectors are plastic parts manufactured by injection molding.

[0016] Furthermore, the top of the left and right connectors are provided with actuation grooves, and the bottom end of the actuation shaft extends radially to the left to form a fork. The left connector is provided with an arc-shaped sliding groove at the corresponding position of the fork, and the fork slides in the sliding groove.

[0017] The left and right connectors are provided with blocking protrusions on their outer sides. The shaft segment of the left rotating shaft that extends out of the left connector is equipped with a return spring. The first and last ends of the return spring extend downward and clamp the blocking protrusions and the shift fork.

[0018] Furthermore, the upper ends of the facing inner sides of the left and right connectors are provided with two upper bolt holes, and the lower ends of the facing inner sides of the left and right connectors are provided with two lower bolt holes.

[0019] Furthermore, an operating handle is inserted into the upper end of the dial.

[0020] Compared with the prior art, the present invention, by adopting the above technical solution, has the following advantages:

[0021] The push plates on both sides of the lever shaft cooperate with the left micro switch and the right micro switch respectively. The left micro switch and the right micro switch transmit the switching signal to the electronic control system. The electronic control system will control the lifting and lowering of the agricultural implement according to the feedback signal. The operation method of Example 1 is simple in structure and replaces mechanical transmission with electronic control, making operation more convenient.

[0022] An angle sensor is installed at the end of the right-hand shaft. The angle sensor detects the rotation angle of the shaft. The larger the rotation angle, the faster the agricultural implement can be raised or lowered. The electronic control system converts the continuously changing analog signal from the angle sensor into a digital signal, enabling precise control of the opening of the multi-way valve. This makes the system more intelligent and easier to operate.

[0023] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 This is a partial structural schematic diagram of the present invention;

[0026] Figure 3 This is an exploded view of this utility model;

[0027] Figure 4 This is a structural schematic diagram of the left insertion connector in this utility model;

[0028] Figure 5 This is a schematic diagram of the control lever in this utility model.

[0029] In the picture,

[0030] 1- Control lever, 101- Toggle shaft, 102- Left rotation shaft, 103- Right rotation shaft, 104- Toggle fork, 105- Push plate, 2- Left micro switch, 3- Right micro switch, 4- Bearing, 5- Return spring, 6- Angle sensor, 7- Left connector, 701- Toggle groove, 702- Mounting hole, 703- Upper bolt hole, 704- Lower bolt hole, 705- Mounting base, 706- Clearance groove, 707- Blocking protrusion, 8- Right connector, 9- Sealing cover, 10- Control handle. Detailed Implementation

[0031] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings.

[0032] like Figure 1-5As shown, this utility model provides an electronically controlled lifting structure for agricultural machinery, including a control lever 1. The lower end of the control lever 1 is provided with two left connectors 7 and right connectors 8 that are fastened together. The control lever 1 includes a pivot 101, the lower end of which extends into the cavity between the left connector 7 and the right connector 8.

[0033] Left rotating shaft 102 and right rotating shaft 103 extend vertically outward from the left and right sides of the lower end of the pivot shaft 101, and the left rotating shaft 102 and right rotating shaft 103 are coaxially arranged.

[0034] Mounting holes 702 are provided on both the left connector 7 and the right connector 8. Bearings 4 are fitted on both the left rotating shaft 102 and the right rotating shaft 103. The left rotating shaft 102 is rotatably mounted on the mounting hole 702 of the left connector 7 through the bearing 4, and the right rotating shaft 103 is rotatably mounted on the mounting hole 702 of the right connector 8 through the bearing 4.

[0035] This invention also includes a motion sensor, which is used to detect the movement of the dial 101.

[0036] Example 1

[0037] The motion sensors are a left micro switch 2 and a right micro switch 3. The inner sides of the left connector 7 and the right connector 8 are provided with mounting bases 705. The left micro switch 2 is mounted on the mounting base 705 of the left connector 7, and the right micro switch 3 is mounted on the mounting base 705 of the right connector 8. Push plates 105 are formed on both sides of the bottom of the dial shaft 101. The push plates 105 on both sides of the dial shaft 101 cooperate with the left micro switch 2 and the right micro switch 3 respectively.

[0038] The signal lines of the left micro switch 2 and the right micro switch 3 are connected to the electronic control system. The electronic control system will control the lifting and lowering of the agricultural machinery according to the signals fed back by the left micro switch 2 and the right micro switch 3.

[0039] When the control lever 1 is pushed down, the push plate 105 on the right side pushes the right micro switch 3 to activate, thereby controlling the agricultural implement to lift. When the control lever 1 is pushed up, the push plate 105 on the left side pushes the left micro switch 2 to activate, thereby controlling the agricultural implement to lower.

[0040] Example 2

[0041] The motion sensor is an angle sensor 6 installed at the end of the right-hand shaft 103. The signal line of the angle sensor 6 is connected to the electronic control system. The electronic control system converts the continuously changing analog signal of the angle sensor 6 into a digital signal to precisely control the opening of the multi-way valve.

[0042] Left connector 7 and right connector 8 are two parts with identical structure and shape.

[0043] Furthermore, the left connector 7 and the right connector 8 are plastic parts manufactured by injection molding. Since the left connector 7 and the right connector 8 are two parts with the same structure, only one mold is needed to complete the processing, reducing processing costs.

[0044] The top of the left connector 7 and the right connector 8 are provided with actuation grooves 701. When controlling agricultural implements, the actuation shaft 101 moves back and forth in the actuation grooves 701.

[0045] The bottom end of the shift shaft 101 extends radially to its left to form a shift fork 104. An arc-shaped sliding groove 706 is provided on the left connector 7 at a position corresponding to the shift fork 104, and the shift fork 104 slides within the sliding groove 706. A blocking protrusion 707 is provided on the outer sides of the left connector 7 and the right connector 8. A return spring 5 is installed on the shaft segment of the left rotating shaft 102 extending outside the left connector 7. The first and last ends of the return spring 5 extend downwards and clamp the blocking protrusion 707 and the shift fork 104. Figure 2 .

[0046] The left connector 7 and the right connector 8 have two upper bolt holes 703 on their inner upper sides facing each other, and two lower bolt holes 704 on their inner lower lower sides facing each other. The left connector 7 and the right connector 8 are fixed together by insert bolts in the upper bolt holes 703 and lower bolt holes 704.

[0047] The upper end of the dial 101 is fitted with a control handle 10, which is used to adjust the rotation angle of the dial 101 by manually moving the control handle 10; the outer sides of the left connector 7 and the right connector 8 are both fitted with sealing covers 9.

[0048] The specific working principle of this utility model:

[0049] When this utility model is installed in the cab, and the implement is not being operated, the shift shaft 101 is located in the middle position of the shift groove 701. The rotation angle of the shift shaft 101 can be adjusted by manually shifting the control handle 10. This utility model has two implementation methods: one is a simplified version, in which the push plates 105 on both sides of the shift shaft 101 cooperate with the left micro switch 2 and the right micro switch 3 respectively. The left micro switch 2 and the right micro switch 3 transmit switching signals to the electronic control system, which controls the lifting and lowering of the implement based on the feedback signals. The operation method of the first embodiment is simple in structure, and the use of electronic control instead of mechanical transmission makes operation more convenient.

[0050] Example 2 is an upgraded version. An angle sensor 6 is installed at the end of the right-hand rotating shaft 103. The angle sensor 6 detects the rotation angle of the pivot shaft 101. The larger the rotation angle of the pivot shaft 101, the faster the agricultural machinery can be raised or lowered. The electronic control system converts the continuously changing analog signal from the angle sensor 6 into a digital signal, enabling precise control of the opening degree of the multi-way valve. This makes the system more intelligent and easier to operate.

[0051] When the dial shaft 101 rotates, the dial fork 104 moves the first or last end of the return spring 5, and the blocking protrusion 707 blocks the other end of the return spring 5, so that the dial shaft 101 can automatically return to its original position after rotation.

[0052] The above description provides examples of the preferred embodiments of this utility model. Any aspects not detailed herein are common knowledge to those skilled in the art. The scope of protection of this utility model is determined by the claims. Any equivalent modifications based on the technical teachings of this utility model are also within the scope of protection of this utility model.

Claims

1. An electronically controlled lifting structure for agricultural machinery, characterized in that: Includes a control lever (1), the lower end of the control lever (1) is provided with two oppositely fastened and assembled left plug (7) and right plug (8), the control lever (1) includes a dial (101), the lower end of the dial (101) extends into the cavity between the left plug (7) and the right plug (8); Left rotating shaft (102) and right rotating shaft (103) extend vertically outward from the left and right sides of the lower end of the pivot (101), and the left rotating shaft (102) and right rotating shaft (103) are coaxially arranged; Mounting holes (702) are provided on both the left connector (7) and the right connector (8). Bearings (4) are fitted on both the left rotating shaft (102) and the right rotating shaft (103). The left rotating shaft (102) is rotatably mounted on the mounting hole (702) of the left connector (7) through the bearing (4), and the right rotating shaft (103) is rotatably mounted on the mounting hole (702) of the right connector (8) through the bearing (4). It also includes a motion sensor for detecting the movement of the dial (101).

2. The agricultural machinery electric lifting structure as described in claim 1, characterized in that: The motion sensor is a left micro switch (2) and a right micro switch (3). The inner sides of the left connector (7) and the right connector (8) are provided with mounting bases (705). The left micro switch (2) is mounted on the mounting base (705) of the left connector (7), and the right micro switch (3) is mounted on the mounting base (705) of the right connector (8). Push plates (105) are formed on both sides of the bottom of the dial shaft (101). The push plates (105) on both sides of the dial shaft (101) cooperate with the left micro switch (2) and the right micro switch (3) respectively.

3. The agricultural machinery electric lifting structure as described in claim 2, characterized in that: The signal lines of the left microswitch (2) and the right microswitch (3) are connected to the electronic control system.

4. The agricultural machinery electric lifting structure as described in claim 1, characterized in that: The motion sensor is an angle sensor (6) installed at the end of the right turn shaft (103), and the signal line of the angle sensor (6) is connected to the electronic control system.

5. The agricultural machinery electric lifting structure as described in claim 3 or 4, characterized in that: The left connector (7) and the right connector (8) are two pieces with identical structure and shape.

6. The agricultural machinery electric lifting structure as described in claim 5, characterized in that: The left connector (7) and the right connector (8) are plastic parts manufactured by injection molding.

7. The agricultural machinery electric lifting structure as described in claim 6, characterized in that: The top of the left connector (7) and the right connector (8) are provided with a toggle groove (701), and the bottom end of the toggle shaft (101) extends radially to the left to form a toggle fork (104). The left connector (7) is provided with an arc-shaped sliding groove (706) at the corresponding position of the toggle fork (104), and the toggle fork (104) slides in the sliding groove (706). The left connector (7) and the right connector (8) are provided with blocking protrusions (707) on their outer sides. The left rotating shaft (102) is provided with a return spring (5) on the shaft segment extending out of the left connector (7). The first and last ends of the return spring (5) extend downward and clamp the blocking protrusions (707) and the shift fork (104).

8. The agricultural machinery electric lifting structure as described in claim 6, characterized in that: The upper ends of the left connector (7) and the right connector (8) facing each other are provided with two upper bolt holes (703), and the lower ends of the left connector (7) and the right connector (8) facing each other are provided with two lower bolt holes (704).

9. The agricultural machinery electric lifting structure as described in claim 3 or 4, characterized in that: The upper end of the dial (101) is fitted with an operating handle (10).

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