An automatic aligning device

Abstract

The utility model relates to an automatic alignment device relates to the technical field of agricultural machinery, the utility model discloses through using motor combination to pull the steel wire rope, makes the aluminum alloy elbow combination can rotate around the pin shaft to lift and drop, to change the working condition, and by proximity switch detects the up and down position, and the work is stable and reliable, further, two sides motor can be controlled respectively by main machine, and the ground clearance of two sides is changed with the dynamic stepless adjustment of the trend of the terrain slope, so that the top of aluminum alloy elbow combination of two sides of main machine can still be accurate to fit the position of seedling zone stem when working on the slope, avoid the interference of soil and leaf to the mechanism, further, adopt the steel wire rope static stepless adjustment mechanism ground clearance, and can alleviate the impact when the mechanism meets the stone, soil block and the like barrier, further realize the effect that the structure is simple, the reliability is high, and the maintenance is convenient, the utility model has the characteristics of high degree of automation, stable work, wide adaptability compared with prior art.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of agricultural machinery technology, in particular to an automatic alignment device, and more particularly to an automatic alignment device for self-propelled agricultural machinery. BACKGROUND

[0002] In new agricultural machinery (such as Dongfanghong 2BL-4 multifunctional intelligent pepper planter), an auxiliary driving system is often installed to reduce the operating strength of the driver, and the automatic alignment device, as one of the important components of the auxiliary driving system, can assist the agricultural machinery to automatically identify the trend of the seedling belt and correct the driving direction in real time.

[0003] However, the existing automatic alignment device is mostly applied when the stems of the crops are relatively thick during the harvesting period, and has poor applicability to low and flexible seedling belts (such as wheat, etc.), and has certain defects in the aspects of slope adjustment capability and obstacle avoidance design, etc.

[0004] Therefore, there is an urgent need for an automatic alignment device that can autonomously and reliably realize the alignment function close to the ground, while having the characteristics of simple structure, easy adjustment and self-protection. SUMMARY

[0005] In order to overcome the deficiencies in the background art, the present application provides an automatic alignment device, which uses a proximity switch to calibrate the zero point position of the motor rocker arm, adjusts the ground clearance on both sides by changing the deflection angle of the motor rocker arm relative to the zero point, and uses a leaf spring and a steel wire rope structure to make the mechanism flexible to avoid obstacles, so that it has a relatively simple mechanical structure and a high degree of automation.

[0006] In order to achieve the application purposes as described above, the present application adopts the technical solutions as described below:

[0007] The automatic alignment device comprises a motor assembly, an angle sensor assembly, a clamping plate assembly, an aluminum alloy elbow assembly, a steel wire, a proximity switch and a mounting plate assembly, the mounting plate assembly is provided as two pieces, the two mounting plate assemblies are respectively arranged at the lower part in front of the main machine through fasteners, the motor assembly is arranged on each mounting plate assembly through fasteners, the motor in each motor assembly is connected with the controller of the main machine through a wire harness, the angle sensor assembly is arranged on the outer side of the mounting plate assembly below each motor assembly through fasteners, the angle sensor in each angle sensor assembly is connected with the controller of the main machine through a wire harness, the torsion spring below each angle sensor assembly is connected with the clamping plate in the clamping plate assembly through fasteners, the lower end of the leaf spring in each clamping plate assembly is hinged with the aluminum alloy elbow assembly through a pin shaft, one steel wire is arranged on the outer edge surface of each aluminum alloy elbow assembly, the upper end of the two steel wires is connected with the rocker arm in the motor assembly, the proximity switch is arranged on each mounting plate assembly, each proximity switch is connected with the controller of the main machine through a wire harness, and the sensing end of the two proximity switches corresponds to the positioning bolt in the motor assembly.

[0008] The automatic alignment device, the two mounting plate assemblies are symmetrically arranged.

[0009] The automatic alignment device, the motor assembly comprises a motor, a motor support, a rocker arm and a positioning bolt, the motor support is fixedly arranged on the mounting plate assembly, the motor is arranged on the motor support, the main shaft of the motor is connected with the rocker arm arranged on the motor support and drives the rocker arm to swing, and the positioning bolt is arranged at the outer end of the rocker arm.

[0010] The automatic alignment device, the rocker arm is provided with a steel wire connecting hole.

[0011] The automatic alignment device, the angle sensor assembly comprises an angle sensor, a mounting block and a torsion spring, the mounting block is fixedly arranged on the mounting plate assembly, the angle sensor is arranged on the upper surface of the mounting block, and the torsion spring is arranged on the lower surface of the mounting block, and the sensing end of the angle sensor corresponds to the torsion spring.

[0012] The automatic alignment device, the clamping plate assembly comprises a clamping plate and a leaf spring, the clamping plate is connected with the torsion spring, the lower end of the clamping plate is connected with the upper end of the leaf spring through a bolt, and the lower end of the leaf spring is connected with the aluminum alloy elbow assembly.

[0013] The automatic alignment device, the main machine is a self-propelled agricultural machine.

[0014] The technical scheme has the following advantages:

[0015] The application changes the working state by using the motor assembly to pull the steel wire rope, so that the aluminum alloy elbow assembly can rotate around the pin shaft to lift and drop, and the up and down positions are detected by the proximity switch, so that the work is stable and reliable;

[0016] Further, the two side motors can be controlled by the main machine respectively, the land gap of the two sides is dynamically and steplessly adjusted according to the terrain slope trend, so that the top of the aluminum alloy elbow assembly of the two sides can still accurately fit the position of the seedling stem when the main machine works on the slope, and the interference of the soil and the leaves on the mechanism is avoided;

[0017] Further, the steel wire rope can be used to statically and steplessly adjust the land gap of the mechanism, and can also alleviate the impact when the mechanism encounters obstacles such as stones and soil blocks, thereby realizing the effects of simple structure, high reliability and convenient maintenance;

[0018] Compared with the prior art, the application has the characteristics of high automation degree, stable work and wide adaptability. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a three-dimensional structure schematic diagram of the application;

[0020] Figure 2 is a structure schematic diagram of the motor assembly in the application;

[0021] Figure 3 is a structure schematic diagram of the angle sensor assembly in the application;

[0022] Figure 4 is a structure schematic diagram of the clamp plate assembly in the application;

[0023] Figure 5 is an installation position schematic diagram of the application installed on the main machine;

[0024] In the figure: 1, main machine; 2, automatic row aligning device; 21, motor assembly; 211, motor; 212, motor support; 213, rocker arm; 214, positioning bolt; 22, angle sensor assembly; 221, angle sensor; 222, mounting block; 223, torsional spring; 23, clamp plate assembly; 231, clamp plate; 232, leaf spring; 24, aluminum alloy elbow assembly; 25, steel wire rope; 26, proximity switch; 27, mounting plate assembly. DETAILED DESCRIPTION

[0025] The application can be explained in more detail by the following examples, and the application is not limited to the following examples;

[0026] In order to make the purpose, technical scheme and advantages of the application more clear, the application will be further described in detail below in combination with the drawings and examples. It should be understood that in the description of the application, unless otherwise specified, the meaning of "a plurality of" is two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application. In addition, the terms "first", "second", "third" and the like are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0027] In combination with the drawings Figures 1-5 , the automatic aligning device described in the application comprises a motor assembly 21, an angle sensor assembly 22, a clamping plate assembly 23, an aluminum alloy elbow assembly 24, a steel wire rope 25, a proximity switch 26 and a mounting plate assembly 27, the mounting plate assembly 27 is provided in two pieces, as shown in Figure 1 、 5 , the two mounting plate assemblies 27 are symmetrically arranged; the two mounting plate assemblies 27 are respectively arranged in the lower part in front of the main machine 1 by fasteners, the motor assembly 21 is arranged on each mounting plate assembly 27 by fasteners, the motor 211 in each motor assembly 21 is connected to the controller of the main machine 1 by a wire harness, the angle sensor assembly 22 is arranged on the outer side of the mounting plate assembly 27 below each motor assembly 21 by fasteners, the angle sensor 221 in each angle sensor assembly 22 is connected to the controller of the main machine 1 by a wire harness, the torsion spring 223 below each angle sensor assembly 22 is connected to the clamping plate 231 in the clamping plate assembly 23 by fasteners, the lower end of the leaf spring 232 in each clamping plate assembly 23 is hinged to the aluminum alloy elbow assembly 24 by a pin shaft, one steel wire rope 25 is arranged on the outer edge surface of each aluminum alloy elbow assembly 24, the upper end of the two steel wire ropes 25 is connected to the rocker arm 213 in the motor assembly 21, the proximity switch 26 is arranged on each mounting plate assembly 27, each proximity switch 26 is connected to the controller of the main machine 1 by a wire harness, and the sensing end of the two proximity switches 26 corresponds to the positioning bolt 214 in the motor assembly 21.

[0028] Further, as shown in Figure 2As shown, the motor assembly 21 includes a motor 211, a motor bracket 212, a rocker arm 213, and a positioning bolt 214. The motor bracket 212 is fixedly mounted on the mounting plate assembly 27. The motor 211 is mounted on the motor bracket 212. The main shaft of the motor 211 is connected to the rocker arm 213 mounted on the motor bracket 212 and drives the rocker arm 213 to swing. The positioning bolt 214 is provided at the outer end of the rocker arm 213. The rocker arm 213 is provided with a wire rope connection hole.

[0029] Furthermore, such as Figure 3 As shown, the angle sensor assembly 22 includes an angle sensor 221, a mounting block 222, and a torsion spring 223. The mounting block 222 is fixedly mounted on the mounting plate assembly 27. The angle sensor 221 is mounted on the top of the mounting block 222, and the torsion spring 223 is mounted on the bottom of the mounting block 222. The sensing end of the angle sensor 221 corresponds to the torsion spring 223.

[0030] Furthermore, such as Figure 4 As shown, the clamp assembly 23 includes a clamp 231 and a leaf spring 232. The clamp 231 is connected to a torsion spring 223. The lower end of the clamp 231 is connected to the upper end of the leaf spring 232 by bolts. The lower end of the leaf spring 232 is connected to an aluminum alloy bent pipe assembly 24.

[0031] Furthermore, the host machine 1 is a self-propelled agricultural machine ( Figure 5 The main unit 1 shown is a tracked tractor. Figure 5 (This is just an example and is not limited to this host.)

[0032] In specific applications, the automatic alignment device 2 described in this invention, such as... Figure 5 As shown, it is fixed to the lower front part of the main unit 1 by fasteners.

[0033] In a specific implementation of this invention, the mounting plate assembly 27 is fixed to the lower front part of the main unit 1 by fasteners; the motor assembly 21 is fixed to the mounting plate assembly 27 by fasteners and connected to the main unit 1 controller via a wiring harness; the angle sensor assembly 22 is fixed to the outside of the mounting plate assembly 27 by fasteners and connected to the main unit 1 controller via a wiring harness; the clamping plate assembly 23 is fixed below the angle sensor assembly 22 by fasteners; the aluminum alloy bent pipe assembly 24 is mounted on the clamping plate assembly 23 by a pin and can rotate around the pin; one end of the steel wire rope 25 is connected to the aluminum alloy bent pipe assembly 24, and the other end is mounted on the motor assembly 21; the proximity switch 26 is fixed to the mounting plate assembly 27 by fasteners and connected to the main unit 1 controller via a wiring harness.

[0034] The working process of this invention is as follows:

[0035] The host 1 starts the system to power the motor 211, the motor 211 drives the rocker arm 213 to rotate downward and is monitored and controlled by the proximity switch 26, so that the aluminum alloy elbow assembly 24 rotates around the shaft under the action of gravity and falls to the working position, when the host 1 drives in the field, the top of the aluminum alloy elbow assembly 24 touches the crop stem and is forced to rotate the aluminum alloy elbow assembly 24, the clamping plate assembly 23 and the torsional spring 223 around the center axis of the angle sensor 22, so that the angle sensor 22 detects the angle signal, so that the host 1 controller corrects the driving direction.

[0036] Further, the zero position of the rocker arm 213 is determined by the two side proximity switches 26, the power-on time of the two side motor assemblies 21 is controlled to make the rocker arm 213 rotate at different angles, so that the two side aluminum alloy elbow assemblies 24 have different ground clearance, so that the top of the two side aluminum alloy elbow assemblies 24 can still accurately fit the stem position of the seedling belt when the host 1 works transversely on the slope.

[0037] Further, the aluminum alloy elbow assembly 24 is floatingly installed on the clamping plate assembly 23 by the shaft, when the forward direction is affected by stones, soil piles and the like, the aluminum alloy elbow assembly 24 can rotate upward around the shaft to overcome the obstacles, after overcoming the obstacles, the aluminum alloy elbow assembly 24 rotates around the shaft to fall and is limited to the initial working position by the steel wire rope 25; in addition, in order to solve the obstacles in the left and right directions that may be encountered during turning, a leaf spring 232 structure is adopted, the leaf spring 232 is bent to overcome the obstacles, and after overcoming the obstacles, the leaf spring 232 returns to the original shape, so that the aluminum alloy elbow assembly 24 returns to the initial working position.

[0038] Further, the length of the steel wire rope 25 can be adjusted to change the height of the lowest ground clearance of the aluminum alloy elbow assembly 24 to adapt to different crops and land.

[0039] Further, different torsional springs 223 can be replaced to adapt to the force of different crop stems, and the return time of the mechanism can be changed accordingly.

[0040] Compared with the prior art, the present application has the following advantages:

[0041] The present application uses the motor assembly 21 to pull the steel wire rope 25, so that the aluminum alloy elbow assembly 24 can rotate around the shaft to lift and fall, so as to change the working state of the mechanism, and the up and down positions are detected and controlled by the proximity switch 26, and the working is stable and reliable;

[0042] The two side motors 211 can be controlled by the host 1 respectively, the ground clearance of the two sides is dynamically and infinitely adjusted according to the slope of the terrain, so that the top of the two side aluminum alloy elbow assemblies 24 can still accurately fit the stem position of the seedling belt when the host 1 works on the slope, avoiding the interference of soil and leaves on the mechanism;

[0043] The application adopts the static and stepless adjusting mechanism of the steel wire rope 25 to adjust the gap, and can alleviate the impact when the mechanism meets obstacles such as stones and soil blocks, so that the simple structure, high reliability and convenient maintenance effect are realized.

[0044] The application has the characteristics of high automation, stable work and wide adaptability.

[0045] The part not described in the application is the prior art.

[0046] The examples selected in the present text for the purpose of disclosing the inventive object of the application are presently considered suitable, but it should be understood that the application is intended to include all the changes and improvements falling within the scope of the present concept and invention.

Claims

1. An automatic alignment device comprising a motor assembly (21), an angle sensor assembly (22), a clamp plate assembly (23), an aluminum alloy elbow assembly (24), a steel wire rope (25), a proximity switch (26) and a mounting plate assembly (27), characterized in that: The mounting plate assembly (27) is provided as two pieces, the two mounting plate assemblies (27) are respectively arranged in the lower part in front of the main machine (1) by fasteners, the motor assembly (21) is arranged on each mounting plate assembly (27) by fasteners, the motor (211) in each motor assembly (21) is connected to the controller of the main machine (1) by a wire harness, the angle sensor assembly (22) is arranged on the outer side of the mounting plate assembly (27) below each motor assembly (21) by fasteners, the angle sensor (221) in each angle sensor assembly (22) is connected to the controller of the main machine (1) by a wire harness, the torsion spring (223) below each angle sensor assembly (22) is connected to the clamping plate (231) in the clamping plate assembly (23) by fasteners, the lower end of the leaf spring (232) in each clamping plate assembly (23) is hinged to the aluminum alloy elbow assembly (24) by a pin shaft, a steel wire rope (25) is arranged on the outer edge surface of each aluminum alloy elbow assembly (24), the upper end of the two steel wire ropes (25) is connected to the rocker arm (213) in the motor assembly (21), the proximity switch (26) is arranged on the two mounting plate assemblies (27), each proximity switch (26) is connected to the controller of the main machine (1) by a wire harness, and the sensing end of the two proximity switches (26) corresponds to the positioning bolt (214) in the motor assembly (21).

2. The automatic aligning device of claim 1, wherein: The two mounting plate assemblies (27) are symmetrically arranged.

3. The automatic aligning device of claim 1, wherein: The motor assembly (21) comprises a motor (211), a motor support (212), a rocker arm (213) and a positioning bolt (214), the motor support (212) is fixedly arranged on the mounting plate assembly (27), the motor (211) is arranged on the motor support (212), the main shaft of the motor (211) is connected to the rocker arm (213) arranged on the motor support (212) and drives the rocker arm (213) to swing, and the positioning bolt (214) is arranged at the outer end of the rocker arm (213).

4. The automatic aligning device of claim 3, wherein: The rocker arm (213) is provided with a steel wire rope connecting hole.

5. The automatic aligning device of claim 1, wherein: The angle sensor assembly (22) comprises an angle sensor (221), a mounting block (222) and a torsion spring (223), the mounting block (222) is fixedly arranged on the mounting plate assembly (27), the angle sensor (221) is arranged on the upper surface of the mounting block (222), and the torsion spring (223) is arranged on the lower surface of the mounting block (222), and the sensing end of the angle sensor (221) corresponds to the torsion spring (223).

6. The automatic aligning device of claim 1, wherein: The clamping plate assembly (23) comprises a clamping plate (231) and a leaf spring (232), the clamping plate (231) is connected to the torsion spring (223), the lower end of the clamping plate (231) is connected to the upper end of the leaf spring (232) by a bolt, and the lower end of the leaf spring (232) is connected to the aluminum alloy elbow assembly (24).

7. The automatic aligning device of claim 1, wherein: The main machine (1) is a self-propelled agricultural machine.

Images