Machine and tool posture hydraulic regulation and control system for hilly and mountainous areas

Abstract

The utility model relates to the technical field of agricultural machinery, and discloses a machine posture hydraulic control system for hilly and mountainous areas, which is characterized in that an adjusting shaft system is mounted on a base and is connected with a machine through a lifting mechanism and a transverse posture adjusting mechanism; the transverse posture adjusting mechanism comprises a left suspension frame and a right suspension frame which are rotationally connected between the base and the machine tool, a connecting rod is fixedly connected to the adjusting shaft system, one end of a telescopic hydraulic cylinder is rotationally connected with the end of the connecting rod, and the other end of the telescopic hydraulic cylinder is rotationally connected with the right suspension frame. The telescopic hydraulic cylinder is used for detecting the terrain gradient in front of the machine tool and adjusting the transverse attitude angle of the machine tool by adjusting the corresponding stroke according to the gradient; the transverse posture of the machine tool can be adjusted only through one set of telescopic hydraulic cylinders, and accurate adjustment of the transverse posture angle can be achieved by controlling the telescopic hydraulic cylinders through the posture detection sensor.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, in particular to a hydraulic control system for machine postures used in hilly and mountainous areas. Background Art

[0002] Hilly and mountainous areas have complex terrain, fragmented plots and large slopes. During operation, machinery and tools often have inconsistent operation quality due to poor terrain adaptability. Currently, the operating machinery and tools in hilly and mountainous areas are mainly small hand-held and integrated machines. The means of adjusting the posture of the machinery and tools are often mainly manual correction. The means are single, with poor accuracy and low efficiency. During the operation, it is impossible to achieve real-time regulation according to the terrain, resulting in problems such as uneven depth and inconsistency between left and right during the operation. Some suspension mechanisms can achieve lateral posture adjustment, which can achieve height adjustment of the machinery and tools by lifting the hydraulic cylinder, and achieve lateral posture angle adjustment of the machinery and tools by two sets of hydraulic cylinders set on the left and right sides.

[0003] The inventors found that although the above scheme can realize the lateral posture angle adjustment of the machine, its adjustment process is still manually controlled by the hydraulic cylinder. Although the lateral posture angle of the machine can be adjusted according to the judgment of the terrain during the operation of the machine, this adjustment method also requires manual adjustment. On the one hand, there are certain errors and poor adjustment accuracy; on the other hand, two groups of left and right hydraulic cylinders need to be set to realize the lateral posture angle adjustment of the machine, and the overall structure is complicated. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a hydraulic control system for the posture of machinery for use in hilly and mountainous areas. By arranging an attitude detection sensor on the machinery to detect changes in the terrain inclination state, the telescopic hydraulic cylinder adjusts the inclination state of the machinery according to the telescopic movement corresponding to the terrain slope, thereby achieving active adaptation to the slope topography and improving the operation quality of the machinery. Compared with manual adjustment, the adjustment of the utility model is more precise and the error is small; and only one set of telescopic hydraulic cylinders is needed to achieve the lateral attitude angle adjustment of the machinery, with low cost and simple structure.

[0005] In order to achieve the above purpose, the utility model is implemented through the following technical solutions:

[0006] A hydraulic control system for machine posture for hilly and mountainous areas comprises a base, an adjustment shaft system is installed on the base, the adjustment shaft system is connected to the machine through a lifting mechanism and a lateral posture adjustment mechanism, the lateral posture adjustment mechanism comprises a left suspension frame and a right suspension frame rotatably connected between the base and the machine, a connecting rod is fixedly connected to the adjustment shaft system, one end of a telescopic hydraulic cylinder is rotatably connected to the end of the connecting rod, and the other end is rotatably connected to the right suspension frame, a posture detection sensor is provided on the top of the machine for detecting the slope of the terrain in front of the machine, and the telescopic hydraulic cylinder adjusts the corresponding stroke according to the slope to achieve lateral posture angle adjustment of the machine.

[0007] As a further implementation, the adjustment shaft system includes a rotating main shaft installed on a base, connecting rods are connected at both ends of the rotating main shaft, and a connecting plate and a lug plate are fixedly provided in the middle.

[0008] As a further implementation, the lifting mechanism includes an upper pull rod, one end of which is rotatably connected to the connecting plate, and the other end of which is rotatably connected to an upper suspension point on the implement.

[0009] As a further implementation, the lifting mechanism further includes a lifting hydraulic cylinder, one end of which is hinged to the corresponding constraint hole of the base, and the other end of which is hinged to the ear plate.

[0010] As a further implementation, the connecting rod is divided into a left connecting rod and a right connecting rod, and the telescopic hydraulic cylinder is connected to the right connecting rod.

[0011] As a further implementation, the left connecting rod is hinged to one end of the left pull rod, and the other end of the left pull rod is hinged to a middle hole on the left suspension bracket.

[0012] As a further implementation, one end of the left suspension frame is hinged to the base, and the other end is hinged to the left suspension point of the machine.

[0013] As a further implementation, one end of the right suspension frame is hinged to the base, and the other end is hinged to the right side suspension point of the machine.

[0014] As a further implementation method, one end of the telescopic hydraulic cylinder is hinged to the middle hole of the right suspension frame.

[0015] As a further implementation method, a support seat is sleeved on the circumferential side of the middle position of the rotating main shaft, an opening is provided on the support seat, and the support seat passes through the base and is fixedly connected to the base.

[0016] The beneficial effects of the above utility model are as follows:

[0017] 1. The utility model sets an attitude detection sensor on the machine to detect changes in the terrain inclination state. The telescopic hydraulic cylinder adjusts the machine inclination state according to the extension and retraction corresponding to the terrain slope, thereby achieving active adaptation to the slope topography and improving the operation quality of the machine. Compared with manual adjustment, the adjustment of the utility model is more precise and has a small error; and only one set of telescopic hydraulic cylinders is needed to achieve the lateral attitude angle adjustment of the machine, which is low in cost and simple in structure.

[0018] 2. The utility model adjusts the height of the machine by lifting the hydraulic cylinder, and adjusts the lateral posture angle of the machine by a group of telescopic hydraulic cylinders and posture detection sensors, so as to realize automatic control of the machine's operating posture to adapt to the slope of hilly and mountainous areas, thereby improving the machine's operating efficiency and quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0020] Figure 1 It is a schematic diagram of the overall structure of the hydraulic control system for the posture of the implement in the embodiment of the utility model;

[0021] Figure 2 It is a schematic diagram of the axonometric structure of the hydraulic control system for the posture of the machine tool in the embodiment of the utility model;

[0022] Figure 3 It is a schematic diagram of the setting position of the hydraulic control component in the embodiment of the utility model;

[0023] Figure 4 It is a schematic diagram of the overall structure of the adjustment shaft system in the embodiment of the utility model;

[0024] Figure 5 It is a schematic diagram of the overall structure of the rotating main shaft in the embodiment of the utility model.

[0025] In the figure: the distances or sizes between parts are exaggerated to show the positions of various parts, and the schematic diagram is for reference only.

[0026] Among them: 1. Base, 2. Adjustment axis system, 3. Attitude adjustment rod group, 4. Hydraulic control component, 5. Attitude detection sensor, 6. Machine; 201. Rotating spindle, 202. Connecting rod, 203. Limiting sleeve, 204. Support seat, 205. Connecting plate, 206. Ear plate; 301. Left pull rod, 302. Left suspension frame, 303. Upper pull rod, 304. Right suspension frame; 401. Lifting hydraulic cylinder, 402. Telescopic hydraulic cylinder. DETAILED DESCRIPTION

[0027] It should be noted that the following detailed descriptions are all illustrative and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0028] Embodiment 1

[0029] In a typical implementation of the present invention, reference is made to Figure 1-Figure 5 As shown, a hydraulic control system for the posture of a machine tool for hilly and mountainous areas includes a base 1, an adjustment shaft system 2, a posture adjustment rod group 3, a hydraulic control component 4, a posture detection sensor 5, and a machine tool 6. The hydraulic control component 4 includes a telescopic hydraulic cylinder 402. The posture detection sensor is used to detect the slope of the terrain in front of the machine tool. The telescopic hydraulic cylinder 402 adjusts the corresponding stroke according to the slope to achieve lateral posture angle adjustment of the machine tool.

[0030] The base 1 has a U-shaped structure and bearing holes are provided on the two side plates on the top. The adjustment shaft system 2 is installed through the bearing holes. The adjustment shaft system 2 includes a rotating main shaft 201. The rotating main shaft 201 is rotatably connected to the top position of the base 1 by cooperating with the bearing holes at both ends of the rotating main shaft 201. The adjustment shaft system is connected to the machine through a lifting mechanism and a lateral posture adjustment mechanism.

[0031] like Figure 2 and Figure 4 As shown, the structure of the adjustment shaft system 2 includes a rotating main shaft 201, a connecting rod 202, a limiting sleeve 203, a support seat 204, a connecting plate 205, and an ear plate 206. There are two connecting rods, which are located at both ends of the rotating main shaft and are divided into a left connecting rod and a right connecting rod.

[0032] One end of the left connecting rod and the right connecting rod of this embodiment is fixedly connected to the rotating main shaft 201, the connecting plate 205 is located in the middle position of the rotating main shaft 201 and one end is fixedly connected to the rotating main shaft 201, the connecting plate 205 structure is two parallel ear plate structures, the rotating main shaft 201 between the ear plate structures is sleeved on the support seat 204, the support seat is provided with an opening, the support seat 204 is arranged through the base 1 and is fixedly connected to the base 1, the entire machine posture hydraulic control system can be directly dragged through the opening, or the base 1 can be a customized bracket directly installed on the power chassis, or it can be a structure derived from the chassis itself, which is not limited here.

[0033] The limiting sleeve 203 is sleeved on the rotating main shaft 201 and is located between the connecting plate 205 and the left connecting rod for limiting. Two ear plates 206 are arranged parallel between the connecting plate 205 and the right connecting rod and one end of the ear plates 206 is fixedly connected to the rotating main shaft 201.

[0034] like Figure 2As shown, the posture adjustment rod group 3 includes a left tie rod 301, a left suspension frame 302, an upper tie rod 303, and a right suspension frame 304. The lifting mechanism includes an upper tie rod 303, one end of which is hinged to the connecting plate 205, and the other end is rotatably connected to the upper suspension point on the machine. The lifting mechanism also includes a lifting hydraulic cylinder 401, one end of which is hinged to the corresponding constraint hole of the base, and the other end is hinged to the ear plate 206. The corresponding constraint hole structure is a support arranged near the bottom position on the base, and the support is hinged to the bottom end of the lifting hydraulic cylinder 401. The lifting hydraulic cylinder is extended and retracted, and the ear plate 206 drives the rotating spindle 201 to rotate relative to the base 1, so that the connecting plate 205 pulls the upper tie rod 303 to achieve the height adjustment of the machine.

[0035] The lateral posture adjustment mechanism includes a left suspension frame and a right suspension frame which are rotatably connected between the base 1 and the implement 6. One end of the left suspension frame 302 is hinged to the left side of the base 1, and the other end is hinged to the left suspension point of the implement. One end of the right suspension frame is hinged to the right side of the base, and the other end is hinged to the right suspension point of the implement.

[0036] The left connecting rod is hinged to one end of the left tie rod 301, and the other end of the left tie rod 301 is hinged to the middle hole on the left suspension frame. One end of the telescopic hydraulic cylinder 402 is rotatably connected to the end of the right connecting rod, and the other end is hinged to the middle hole of the right suspension frame 304. In order to ensure that there is no motion interference between the rods during the adjustment process, some hinge positions can be connected by ball pins, for example, the left suspension frame 302 and the right suspension frame 304 are connected to the machine 6 by ball pins. The upper tie rod is connected to the upper suspension point on the machine by a ball pin, and the telescopic hydraulic cylinder 402 is connected to the right suspension by a ball pin.

[0037] In order to automatically adjust the lateral posture angle during the operation of the machine, a posture detection sensor is installed on the top of the machine to detect the slope of the terrain in front of the machine in real time. The machine posture hydraulic control system also includes a control unit, which can be installed in a suitable position. The slope signal detected by the posture detection sensor is fed back to the controller. The control unit calculates the tilt angle required for the machine to be adjusted laterally according to the slope signal, and controls the stroke of the telescopic hydraulic cylinder through the proportional control valve.

[0038] This embodiment uses an attitude detection sensor to detect changes in the terrain inclination state, drives the hydraulic cylinder to extend and retract, adjusts the inclination state of the machine, realizes active adaptation to the slope topography, and improves the operation quality of the machine. Compared with manual adjustment, the adjustment of this embodiment is more precise and the error is small; and only one set of telescopic hydraulic cylinders is needed to realize the lateral attitude angle adjustment of the machine, which is low in cost and simple in structure.

[0039] It can be understood that the sensor can be an inclination sensor, which is installed in the horizontal position of the machine to be adjusted, and directly feeds back the angle values ​​of the left and right sides of the machine; or, in other examples, the sensor can also be a displacement sensor or a mechanical actuator switch arranged symmetrically on the left and right sides of the machine, and feeds back the height difference between the left and right sides of the machine to be adjusted from the ground.

[0040] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A hydraulic control system for machine posture used in hilly and mountainous areas, characterized in that: It includes a base, on which an adjustment shaft system is installed, the adjustment shaft system is connected to the machine through a lifting mechanism and a lateral posture adjustment mechanism, the lateral posture adjustment mechanism includes a left suspension frame and a right suspension frame rotatably connected between the base and the machine, a connecting rod is fixedly connected to the adjustment shaft system, one end of the telescopic hydraulic cylinder is rotatably connected to the end of the connecting rod, and the other end is rotatably connected to the right suspension frame, a posture detection sensor is provided on the top of the machine for detecting the slope of the terrain in front of the machine, and the telescopic hydraulic cylinder adjusts the corresponding stroke according to the slope to achieve lateral posture angle adjustment of the machine.

2. The hydraulic control system for machine posture used in hilly and mountainous areas according to claim 1, characterized in that: The adjustment shaft system comprises a rotating main shaft installed on a base, connecting rods are connected at both ends of the rotating main shaft, and a connecting plate and a lug plate are fixedly provided in the middle.

3. The hydraulic control system for machine posture used in hilly and mountainous areas according to claim 2, characterized in that: The lifting mechanism comprises an upper pull rod, one end of which is rotatably connected to the connecting plate, and the other end of which is rotatably connected to an upper suspension point on the implement.

4. The hydraulic control system for machine posture used in hilly and mountainous areas according to claim 3 is characterized in that: The lifting mechanism also includes a lifting hydraulic cylinder, one end of which is hinged to the corresponding constraint hole of the base, and the other end of which is hinged to the ear plate.

5. The hydraulic control system for machine posture used in hilly and mountainous areas according to claim 2, characterized in that: The connecting rod is divided into a left connecting rod and a right connecting rod, and the telescopic hydraulic cylinder is connected to the right connecting rod.

6. The hydraulic control system for machine posture used in hilly and mountainous areas according to claim 5, characterized in that: The left connecting rod is hinged to one end of the left pull rod, and the other end of the left pull rod is hinged to the middle hole position on the left suspension frame.

7. The hydraulic control system for machine posture used in hilly and mountainous areas according to claim 6, characterized in that: One end of the left suspension frame is hinged to the base, and the other end is hinged to the left suspension point of the machine.

8. The hydraulic control system for machine posture used in hilly and mountainous areas according to claim 1, characterized in that: One end of the right suspension frame is hinged to the base, and the other end is hinged to the right suspension point of the machine.

9. The hydraulic control system for machine posture used in hilly and mountainous areas according to claim 8, characterized in that: One end of the telescopic hydraulic cylinder is hinged to the middle hole of the right suspension frame.

10. The hydraulic control system for machine posture used in hilly and mountainous areas according to claim 2, characterized in that: A support seat is sleeved on the peripheral side of the middle position of the rotating main shaft, an opening is provided on the support seat, and the support seat passes through the base and is fixedly connected to the base.

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