Movable desert soil processor

Abstract

The invention discloses a movable desert soil treatment machine which comprises a rack, a walking system and a desert soil atomization system. The desert soil atomization system comprises two atomization rollers; the device further comprises a lifting support and a hydraulic system. The atomizing roller is mounted on the lifting bracket; the hydraulic system comprises a roller power hydraulic element, a lifting hydraulic element, an oil pressure detector, a lifting electric control valve and a controller; the roller power hydraulic element drives the atomization roller to rotate; the lifting hydraulic element drives the lifting bracket to lift; the lifting electric control valve is connected between the lifting hydraulic element and the hydraulic oil source; the detection end of the oil pressure detector is connected with a driving oil path of the roller power hydraulic element, and the signal output end is in signal connection with the signal end of the controller; the control end of the controller is in signal connection with the lifting electric control valve so as to control the lifting electric control valve. According to the movable desert soil processor, the atomization rollers can be prevented from being trapped or stuck, shutdown operation is reduced, and the processing efficiency and reliability of the movable desert soil processor are improved.

Description

Technical Field

[0001] The invention relates to the field of desert soil treatment, in particular to a mobile desert soil treatment machine. Background Art

[0002] Chinese patent document CN 118162456 A discloses a mobile desert soil treatment machine, which includes a frame, a walking system and a desert soil atomization system; the desert soil atomization system includes an atomization bin plate, two atomization rollers and a roller drive device; the atomization bin plate forms an atomization bin with an opening below; the atomization roller is rotatably mounted on the frame; the atomization roller includes an atomization wing head extending radially outward; in the extension direction of the rotation axis, the atomization wing head of the first atomization roller and the atomization wing head of the second atomization roller are arranged alternately. In this way, during the movement of the desert soil treatment machine, the atomization roller can be located below the surface of the desert soil to be treated and rotated, so that the atomization wing head can be used to bring the soil to be treated into the atomization bin, so that the surface soil is atomized, thereby providing a prerequisite for the atomization of the modifier and the surface soil, and then providing a prerequisite for the combination of the modifier and the desert soil, so as to achieve the treatment of the surface layer of the desert soil, form a desert surface protective layer, and even passivate the desert surface.

[0003] The patent application involved in this patent document was made by the inventor of this patent application. When the above-mentioned mobile desert soil treatment machine is actually used, although it can achieve passivation of the desert surface, it also has the disadvantage that the atomizing roller is trapped and stuck, requiring frequent shutdown and startup operations.

[0004] How to reduce the possibility of atomizing rollers getting stuck and entrapped, and improve the processing efficiency and reliability of mobile desert soil processors, is a problem that needs to be further improved or solved. Summary of the invention

[0005] The object of the present invention is to provide a mobile desert soil processing machine, which can reduce the possibility of an atomizing roller being trapped or stuck, and improve the processing efficiency and reliability of the mobile desert soil processing machine.

[0006] To this end, the present invention provides a mobile desert soil processing machine, comprising a frame, a walking system and a desert soil atomization system; the walking system is installed on the frame; the desert soil atomization system comprises at least two atomization rollers; and further comprises a lifting bracket which is liftably installed on the frame; the atomization roller is rotatably installed on the lifting bracket; It also includes a hydraulic system, which includes a roller power hydraulic element lifting hydraulic element, an oil pressure detector, a lifting electric control valve and a controller; the roller power hydraulic element drives the atomizing roller to rotate; the lifting hydraulic element drives the lifting bracket to lift; the lifting electric control valve is connected between the lifting hydraulic element and the hydraulic oil source; The detection end of the oil pressure detector is connected to the driving oil circuit of the roller power hydraulic element, and the signal output end is connected to the signal end signal of the controller; the control end of the controller is connected to the lifting electric control valve signal to control the lifting electric control valve according to the driving oil pressure of the roller power hydraulic element, and then control the lifting hydraulic element.

[0007] Due to the setting of the lifting bracket and the hydraulic system, when the atomizing roller is trapped and stuck in the soil layer due to the hard soil layer or large particles, the rotation speed drops to a predetermined value or stops rotating, and the roller power hydraulic element is stuck in the soil layer. The driving oil circuit pressure of the roller power hydraulic element will undergo a large change or a pressure mutation. Based on the pressure mutation of the driving oil circuit, it can be determined that the atomizing roller is stuck in the soil layer. At the same time, based on the pressure mutation of the driving oil circuit, the oil pressure detector generates and outputs different electrical signals to the controller; the controller generates a control signal according to the pressure mutation, and outputs the control signal to the lifting electric control valve, and the lifting electric control valve changes the on-off or flow of the lifting hydraulic element oil circuit according to the control signal, thereby lifting the lifting bracket, lifting the corresponding atomizing roller, reducing the rotation resistance, and restoring the atomizing roller to normal speed. In this way, the atomizing roller can be prevented from being trapped or stuck, reducing downtime operations, and improving the processing efficiency and reliability of the mobile desert soil treatment machine.

[0008] In a further technical solution, every two lifting brackets are arranged in pairs and are respectively supported at the two ends of one atomizing roller; every two lifting hydraulic elements are arranged in pairs and are respectively arranged corresponding to the lifting brackets arranged in pairs; each lifting electric control valve controls the two lifting hydraulic elements arranged in pairs. In this way, the two ends of the atomizing roller can be raised or lowered synchronously, thereby avoiding damage to the atomizing roller and ensuring reliability.

[0009] In the optional technical solution, every two atomizing rollers are arranged in pairs; every two lifting brackets are arranged in pairs, wherein one lifting bracket simultaneously supports one end of the paired atomizing rollers, and the other lifting bracket simultaneously supports the other end of the paired atomizing rollers; every two lifting hydraulic elements are arranged in pairs, and are respectively arranged corresponding to the paired lifting brackets; each lifting electric control valve controls the two paired lifting hydraulic elements. In this way, each pair of atomizing rollers can be operated synchronously, thereby improving reliability.

[0010] In the preferred technical solution, a synchronous flow splitter is provided between the working oil port of the lifting electric control valve and the two lifting hydraulic elements arranged in pairs, and the synchronous flow splitter includes two closed hydraulic motors rotating coaxially and having the same specifications, the first working oil ports of the two closed hydraulic motors are both connected to one working oil port of the lifting electric control valve, and the second working oil ports of the two closed hydraulic motors are respectively connected to the working oil chambers of the two lifting hydraulic elements arranged in pairs. In this way, the lifting hydraulic elements arranged in pairs can be ensured to act synchronously and the reliability of the operation can be ensured.

[0011] In an optional technical solution, the detection end of one of the oil pressure detectors is connected to the high-pressure chamber oil circuit of the roller power hydraulic element. In a more preferred technical solution, the detection end of another oil pressure detector is connected to the low-pressure chamber oil circuit of the roller power hydraulic element; the controller controls the lifting and lowering electric control valve according to the hydraulic oil pressure on the high-pressure side (chamber) and the low-pressure side (chamber) of the roller power hydraulic element, and can control the lifting and lowering electric control valve according to the difference in hydraulic oil pressure on the high-pressure side (chamber) and the low-pressure side (chamber). This can increase the sensitivity of the controller to changes in hydraulic oil pressure and improve the accuracy and precision of the lifting and lowering operation.

[0012] In a further technical solution, the two signal terminals of the lifting electric control valve are respectively connected to the control terminals of the controller, so that the lifting electric control valve can be controlled in both directions, thereby realizing the lifting hydraulic element and the lifting bracket.

[0013] In an optional technical solution, the lifting hydraulic element is a hydraulic cylinder, and the rod chamber and rodless chamber of the hydraulic cylinder are respectively connected to different working oil ports of the lifting electric control valve.

[0014] In an optional technical solution, the roller power hydraulic element may be a hydraulic motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is an external stereoscopic diagram of a mobile desert soil processing machine provided by an embodiment of the present invention.

[0016] Figure 2 for Figure 1 A longitudinal sectional view of a mobile desert soil processing machine is shown in FIG.

[0017] Figure 3 for Figure 1 The mobile desert soil processing machine frame and related parts connection structure diagram shown in.

[0018] Figure 4 for Figure 1 The diagram shows a partial hydraulic control schematic of a mobile desert soil treatment machine.

[0019] Figure 5 for Figure 4 Schematic diagram of the principle of the synchronous shunt device. DETAILED DESCRIPTION

[0020] The following is a detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings. It should be noted that in this document, the directional words are determined with reference to the use status of the mobile desert soil treatment machine.

[0021] Please refer to Figure 1 , Figure 2 and Figure 3 , Figure 1 An external stereoscopic diagram of a mobile desert soil treatment machine provided by an embodiment of the present invention; Figure 2 for Figure 1 A longitudinal sectional view of a mobile desert soil treatment machine is shown in FIG. Figure 3 for Figure 1 The mobile desert soil treatment machine frame and related parts connection structure diagram shown in FIG. As shown in the figure, the present invention provides a mobile desert soil treatment machine including a frame 100, a walking system 200 and at least one desert soil atomization system 300.

[0022] The walking system 200 is installed on the frame 100, which can facilitate the movement of the desert soil treatment machine and improve the treatment efficiency. The walking system 200 can be a vehicle or mechanical mobile system, which can be a wheeled walking system or a walking system of other structures. In this embodiment, the walking system is a crawler walking system. In order to adapt to the desert environment, in this embodiment, the walking system includes walking crawlers located on both sides. The walking system can be self-powered and can move by itself; it can also be unpowered and can be dragged by other equipment. In this embodiment, the walking system of the mobile desert soil treatment machine is self-powered and can move by itself.

[0023] like Figure 2 and Figure 3 As shown, in this embodiment, the mobile desert soil treatment machine includes three desert soil atomization systems 300 arranged in sequence from front to back. The desert soil atomization system 300 includes an atomization bin plate, two atomization rollers 320 and a roller driving device; the atomization bin plate forms an atomization bin with an opening at the bottom. In each atomization bin, two atomization rollers are arranged in pairs, and the reference numerals are 320a and 320b respectively; in special circumstances, more atomization rollers can also be arranged.

[0024] The desert soil atomization system 300 is also provided with a roller drive device, which can be installed on the frame 100 to drive the atomization roller 320a and the atomization roller 320b to rotate. In this embodiment, the atomization roller 320 is provided with a separate roller drive device to control the rotation speed of the atomization roller respectively and ensure the power supply of the atomization roller.

[0025] In this way, during the movement of the desert soil treatment machine, the atomizing roller 320a and the atomizing roller 320b can be located at an appropriate position below the surface of the desert soil to be treated, and rotated at an appropriate speed, so as to use the atomizing wing head of the atomizing roller to bring the soil to be treated into the atomizing bin. The rotation at an appropriate speed can make the surface soil fly, realize soil atomization, and then provide a prerequisite for the atomization and mixing of the modifier and the surface soil, realize the surface treatment of the desert soil, form a desert surface protective layer, and even passivate the desert surface. In one embodiment, the atomizing roller 320a and the second atomizing roller 320b can be located 200mm below the surface of the desert soil to be treated, that is, the soil within 200mm of the desert surface can be passivated.

[0026] The inventor conducted an in-depth study on the causes and consequences of the atomizing roller being trapped and stuck, and proposed the present invention based on the pressure changes of the hydraulic actuators in combination with the dynamic characteristics of the hydraulic system's hydraulic actuators.

[0027] In one embodiment of the present invention, the mobile desert soil treatment further comprises a lifting bracket 410 which is liftably mounted on the frame 100; the atomizing roller 320 is rotatably mounted on the lifting bracket 410 so as to be supported on the lifting bracket 410 while the atomizing roller 320 rotates.

[0028] like Figure 4 As shown in the figure, Figure 1 The mobile desert soil treatment machine also includes a hydraulic system. The hydraulic system includes a roller power hydraulic element 510, a lifting hydraulic element 520, an oil pressure detector (not shown in the figure), a lifting electric control valve 530 and a controller 450.

[0029] The roller power hydraulic element 510 drives the atomizing roller 320 to rotate. The roller power hydraulic element 510 can be a hydraulic motor of suitable specifications and can be installed on the frame 100 to drive the atomizing roller 320a and the atomizing roller 320b to rotate. In this embodiment, each atomizing roller 320 is provided with a separate roller power hydraulic element 510 to control the rotation speed of the atomizing roller 320 respectively and ensure the power supply of the atomizing roller 320.

[0030] The lifting hydraulic element 520 is used to drive the lifting bracket 410 to lift. The lifting hydraulic element 520 can be a retractable hydraulic cylinder, and its two ends are respectively connected to the lifting bracket 410 and the frame 100, so that when the hydraulic cylinder is extended and retracted, the distance between the lifting bracket 410 and the frame 100 is changed, thereby adjusting the height of the atomizing roller 320.

[0031] The lifting electric control valve 530 is connected between the lifting hydraulic element 520 and the hydraulic oil source to control the on and off of the high-pressure oil supplied to the lifting hydraulic element 520, so that the lifting hydraulic element 520 stops or starts to move. The lifting electric chamber valve 530 can be a proportional valve to control the flow of the high-pressure oil supplied to the lifting hydraulic element 520, so that the lifting hydraulic element 520 moves at a suitable speed.

[0032] The detection end of the oil pressure detector is connected to the driving oil circuit of the roller power hydraulic element 510, and the signal output end is connected to the signal end of the controller 450, that is, a proper pressure signal is formed according to the pressure of the hydraulic oil. The control end of the controller 450 is connected to the lifting electric control valve 520 signal to control the lifting electric control valve 530 according to the driving oil pressure of the roller power hydraulic element 510, and then control the lifting hydraulic element 520. In the embodiment, multiple oil pressure detectors can be set corresponding to the roller power hydraulic element 510 to respectively detect and obtain the driving oil pressure of each roller power hydraulic element 510.

[0033] When the atomizing roller 320 is trapped or stuck in the soil layer due to the hard soil layer or large particles, the rotation speed drops to a predetermined value or stops rotating, the pressure of the driving oil circuit of the roller power hydraulic element 510 will change greatly, or a sudden change in pressure will occur. At this time, due to the provision of the lifting bracket 410 and the hydraulic system, based on the sudden change in pressure of the driving oil circuit, it can be determined that the atomizing roller is stuck in the soil layer. At the same time, based on the sudden change in pressure of the driving oil circuit, the oil pressure detector generates and outputs different electrical signals to the controller 450; the controller 450 generates a control signal according to the sudden change in pressure, and outputs the control signal to the lifting electric control valve 530, and the lifting electric control valve 530 changes the on-off or flow of the lifting hydraulic element 520 oil circuit according to the control signal, thereby lifting the lifting bracket 410, lifting the corresponding atomizing roller 320, reducing the rotation resistance, and restoring the atomizing roller 320 to normal speed. In this way, the atomizing roller can be prevented from being trapped or stuck, reducing downtime operations, and improving the processing efficiency and reliability of the mobile desert soil treatment machine. In one embodiment of the present invention, the detection end of the oil pressure detector is connected to the high-pressure side hydraulic oil circuit of the roller power hydraulic element 510, and the upper limit of the trigger pressure is set to 18MPa. That is, when it is detected that the high-pressure side pressure of the roller power hydraulic element 510 reaches 18MPa, the controller 450 sends a control signal to displace the lifting electric control valve 530, thereby causing the lifting hydraulic element 520 to operate (the hydraulic cylinder is shortened), and the atomizing roller 320 is lifted to reduce the rotational resistance.

[0034] In this embodiment, every two lifting brackets 410 are arranged in pairs and support the two ends of an atomizing roller 320 respectively, that is, every two lifting brackets 410 correspond to one atomizing roller 320. Each atomizing roller 320 is driven by a roller power hydraulic element 510 (hydraulic motor). At the same time, every two lifting hydraulic elements 520 are arranged in pairs and correspond to the lifting brackets 410 arranged in pairs. Figure 4 As shown, every two lifting hydraulic elements 520 correspond to one roller power hydraulic element 510 (hydraulic motor), and are connected through the control of the controller 450 to form a control unit. Figure 4 6 roller power hydraulic components 510 (hydraulic motors) and 12 lifting hydraulic components 520 (hydraulic cylinders) are shown in the figure. The 12 lifting hydraulic components 520 (hydraulic cylinders) are divided into 6 groups, each of which corresponds to one roller power hydraulic component 510 (hydraulic motor). Each lifting electric control valve 530 controls the two lifting hydraulic components 520 that are paired. In this way, the two ends of the atomizing roller 320 can be synchronously raised or lowered, avoiding the atomizing roller 320 from tilting or being damaged, and ensuring reliability.

[0035] According to the above description, every two atomizing rollers 320 can also be arranged in pairs; every two lifting brackets 410 can be arranged in pairs, one of the lifting brackets 410 is simultaneously supported on one end of the atomizing rollers 320 arranged in pairs, and the other lifting bracket 410 is simultaneously supported on the other end of the atomizing rollers 320 arranged in pairs, that is, each pair of atomizing rollers 320 corresponds to two lifting brackets 410. Every two lifting hydraulic elements 520 are arranged in pairs, and are respectively arranged corresponding to the lifting brackets 410 arranged in pairs; each lifting electric control valve 530 controls the two lifting hydraulic elements 520 arranged in pairs. In this way, each pair of atomizing rollers 320 can be operated synchronously, thereby improving reliability.

[0036] like Figure 4 As shown, a synchronous flow dividing device 540 is provided between the working oil port of the lifting electric control valve 530 and the two lifting hydraulic elements 520 configured in pairs. Figure 5As shown, the synchronous flow diversion device 540 includes two closed hydraulic motors that rotate coaxially and have the same specifications, preferably closed bidirectional hydraulic motors, the first working oil ports A of the two closed hydraulic motors are connected to the working oil port of the lifting electric control valve 530, and the second working oil ports B of the two closed hydraulic motors are respectively connected to the working oil chambers of the two lifting hydraulic elements 520 (hydraulic cylinders) configured in pairs, so as to supply hydraulic oil to the high-pressure chambers of the two lifting hydraulic elements 520 (hydraulic cylinders), or to make the hydraulic oil in the low-pressure chambers of the two lifting hydraulic elements 520 (hydraulic cylinders) return synchronously. In this way, the two closed hydraulic motors rotate synchronously, so that the high-pressure oil output from the working oil ports of the two closed hydraulic motors or the low-pressure oil returned is the same, thereby ensuring the synchronous action of the lifting hydraulic elements 520 configured in pairs, and ensuring the reliability of operation. In this embodiment, the working oil ports of the two closed hydraulic motors are respectively connected to the rodless chambers of the two lifting hydraulic elements 520 (hydraulic cylinders) configured in pairs, and the piston rod of the hydraulic cylinder is connected to the frame 100, and the cylinder body is connected to the lifting bracket 410. In this way, when the hydraulic cylinder contracts, the return oil flow of the rodless chamber is the same, which can ensure synchronous contraction, and synchronous extension when extending.

[0037] In one embodiment, the detection end of the corresponding oil pressure detector can be connected to the high-pressure chamber oil circuit of the roller power hydraulic element 510 to detect the hydraulic oil pressure of the high pressure chamber. In another embodiment, the detection end of another oil pressure detector is simultaneously connected to the low-pressure chamber oil circuit of the roller power hydraulic element 510, that is, the oil pressure on the high-pressure side and the low-pressure side of the roller power hydraulic element 510 is detected simultaneously. At the same time, the controller 450 controls the lifting electric control valve 530 according to the hydraulic oil pressure difference between the high-pressure chamber and the low-pressure chamber of the roller power hydraulic element 510. When the atomizing roller 320 has a large resistance or stops rotating, the pressure difference between the high-pressure chamber and the low-pressure chamber will change more obviously, which can increase the sensitivity of the controller to the change of hydraulic oil pressure and improve the accuracy and precision of the lifting operation.

[0038] In this embodiment, the lifting electric control valve 530 is a bidirectional electric control valve. The two signal terminals of the lifting electric control valve 530 are respectively connected to the two control terminals of the controller 450. In this way, the lifting electric control valve 530 can be bidirectionally controlled, and then the lifting hydraulic element 520 and the lifting bracket 410 can be bidirectionally controlled (upward and downward).

[0039] According to the above description, according to actual needs, the controller 450 can be used to control the rise and fall of the lifting hydraulic element 520 and the atomizing roller 320 according to corresponding strategies. For example, the oil pressure on the high pressure side or low pressure side of the roller power hydraulic element 510 can be increased or decreased, or a predetermined depth can be maintained, or the height (depth) of the rear atomizing roller 320 can be controlled according to the height (depth) of the front atomizing roller 320, and so on.

[0040] The above is a detailed introduction to the specific implementation of the present invention. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the core idea of ​​the present invention. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the present invention, the present invention can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A mobile desert soil treatment machine, comprising a frame (100), a walking system (200) and a desert soil atomization system (300); the walking system (200) is mounted on the frame (100); the desert soil atomization system (300) comprises at least two atomization rollers (320); characterized in that: It also includes a hydraulic system and a lifting bracket (410) that is escalably mounted on the frame (100); the atomizing roller (320) is rotatably mounted on the lifting bracket (410); The hydraulic system comprises a roller power hydraulic element (510), a lifting hydraulic element (520), an oil pressure detector, a lifting electric control valve (530) and a controller (450); the roller power hydraulic element (510) drives the atomizing roller (320) to rotate; the lifting hydraulic element (520) drives the lifting bracket (410) to move up and down; the lifting electric control valve (530) is connected between the lifting hydraulic element (520) and a hydraulic oil source; The detection end of the oil pressure detector is connected to the driving oil circuit of the roller power hydraulic element (510), and the signal output end is connected to the signal end of the controller (450); the control end of the controller (450) is connected to the lifting electric control valve (520) signal, so as to control the lifting electric control valve (530) according to the driving oil pressure of the roller power hydraulic element (510), thereby controlling the lifting hydraulic element (520).

2. The mobile desert soil processing machine according to claim 1, characterized in that: Every two of the lifting brackets (410) are arranged in pairs and are respectively supported at two ends of one of the atomizing rollers (320); every two of the lifting hydraulic components (520) are arranged in pairs and are respectively arranged corresponding to the lifting brackets (410) arranged in pairs; Each of the lifting electric control valves (530) controls the two lifting hydraulic elements (520) that are arranged in a pair.

3. The mobile desert soil processing machine according to claim 1, characterized in that: Each two atomizing rollers (320) are arranged in pairs; Every two of the lifting brackets (410) are arranged in pairs, wherein one of the lifting brackets (410) simultaneously supports one end of the atomizing roller (320) arranged in pairs, and the other lifting bracket (410) simultaneously supports the other end of the atomizing roller (320) arranged in pairs; Every two of the lifting hydraulic components (520) are arranged in pairs, and are respectively arranged corresponding to the lifting brackets (410) arranged in pairs; Each of the lifting electric control valves (530) controls the two lifting hydraulic elements (520) that are arranged in a pair.

4. The mobile desert soil processing machine according to claim 2 or 3, characterized in that: A synchronous flow splitter (540) is arranged between the working oil port of the lifting electric control valve (530) and the two lifting hydraulic elements (520) arranged in a pair. The synchronous flow splitter (540) comprises two coaxially rotating closed hydraulic motors with the same specifications. The first working oil ports (A) of the two closed hydraulic motors are both connected to a working oil port of the lifting electric control valve (530), and the second working oil ports (B) of the two closed hydraulic motors are respectively connected to the working oil chambers of the two lifting hydraulic elements (520) arranged in a pair.

5. The mobile desert soil processing machine according to any one of claims 1 to 3, characterized in that: A detection end of the oil pressure detector is connected to the high-pressure side oil circuit of the roller power hydraulic element (510).

6. The mobile desert soil processing machine according to claim 5, characterized in that: A detection end of the oil pressure detector is connected to the low-pressure side oil circuit of the roller power hydraulic element (510); The controller (450) controls the lifting electric control valve (530) according to the hydraulic oil pressures on the high-pressure side and the low-pressure side of the roller power hydraulic element (510).

7. The mobile desert soil processing machine according to any one of claims 1 to 3, characterized in that: Two signal terminals of the lifting electric control valve (520) are respectively connected to two control terminals of the controller (450).

8. The mobile desert soil processing machine according to any one of claims 1 to 3, characterized in that: The lifting hydraulic element (520) is a hydraulic cylinder, and the rod chamber and the rodless chamber of the hydraulic cylinder are respectively connected to different working oil ports of the lifting electric control valve (530).

9. The mobile desert soil processing machine according to any one of claims 1 to 3, characterized in that: The roller power hydraulic element (510) is a hydraulic motor.

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