Movable desert soil processor

Abstract

The utility model discloses a movable desert soil treatment machine which comprises a machine frame, 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 utility model relates to the desert soil processing field especially relates to a mobile desert soil processing machine. BACKGROUND

[0002] Chinese patent document CN 118162456 A discloses a mobile desert soil processing machine, the mobile desert soil processing machine includes frame, walking system and desert soil atomization system;Desert soil atomization system includes atomization warehouse board, two atomization rollers and roller drive arrangement;Atomization warehouse board forms the atomization warehouse of the lower opening;Atomization roller is rotatably installed on the frame;Atomization roller includes the atomization fin of radially outward extension;In the direction of the extension of the rotation axis, the atomization fin of the first atomization roller and the atomization fin of the second atomization roller are staggered arrangement.This way, in the process of moving the desert soil processing machine, the atomization roller can be below the surface of the desert soil to be processed and rotate to bring the soil to be processed into the atomization warehouse using the atomization fin, atomize the surface soil, and further provide the premise for the improvement agent and the atomization of the surface soil, and further provide the premise for the improvement agent and the desert soil combination, realize the surface layer treatment of the desert soil, form the desert surface layer protection layer, and even the desert surface layer passivation.

[0003] The patent document relates to the patent application made by the inventor of the present patent application, and in the actual application of the above-mentioned mobile desert soil processing machine, although the passivation of the desert surface layer can be realized, there is still the problem of frequent shutdown and start operation when the atomization roller is trapped and stuck.

[0004] How to reduce the trapping and sticking of the atomization roller and improve the processing efficiency and reliability of the mobile desert soil processing machine is a problem that needs to be further improved or solved. SUMMARY

[0005] The utility model aims at providing a mobile desert soil processing machine, which can reduce the trapping and sticking of the atomization roller and improve the processing efficiency and reliability of the mobile desert soil processing machine.

[0006] Therefore, the utility model provides a mobile desert soil processing machine, which comprises 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;Further comprising a lifting support which is liftable installed on the frame;The atomization roller is rotatably installed on the lifting support;

[0007] Further comprising a hydraulic system, the hydraulic system comprising 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 support to lift; the lifting electric control valve is connected between the lifting hydraulic element and a hydraulic oil source;

[0008] The detection end of the oil pressure detector is connected with the driving oil circuit of the roller power hydraulic element, and the signal output end is connected with the signal end of the controller; the control end of the controller is connected with the lifting electric control valve, so as to control the lifting electric control valve according to the driving oil pressure of the roller power hydraulic element, and further control the lifting hydraulic element.

[0009] Due to the lifting support and the hydraulic system, when the atomizing roller is trapped in the soil layer because the rotation speed of the atomizing roller is reduced to a predetermined value or stops rotating due to hard soil layer or large particles, the driving oil circuit pressure of the roller power hydraulic element will change greatly or have a pressure jump. Based on the pressure jump 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 jump 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 jump, and outputs the control signal to the lifting electric control valve; the lifting electric control valve changes the on-off or flow of the lifting hydraulic element oil circuit according to the control signal, and then lifts the lifting support, lifts the corresponding atomizing roller, reduces the rotation resistance, and restores the normal rotation speed of the atomizing roller. In this way, the atomizing roller can be prevented from being trapped or stuck, the downtime operation can be reduced, and the processing efficiency and reliability of the mobile desert soil treatment machine can be improved.

[0010] In a further technical solution, each two lifting supports are arranged in pairs and are respectively supported at two ends of one atomizing roller; each two lifting hydraulic elements are arranged in pairs and are respectively arranged corresponding to the paired lifting supports; and each lifting electric control valve controls the two paired lifting hydraulic elements. In this way, the two ends of the atomizing roller can be lifted or lowered synchronously, the atomizing roller can be prevented from being damaged, and the reliability can be ensured.

[0011] In an optional technical solution, each two atomizing rollers are arranged in pairs; each two lifting supports are arranged in pairs, wherein one lifting support supports one end of the paired atomizing rollers, and the other lifting support supports the other end of the paired atomizing rollers; each two lifting hydraulic elements are arranged in pairs and are respectively arranged corresponding to the paired lifting supports; and each lifting electric control valve controls the two paired lifting hydraulic elements. In this way, each pair of atomizing rollers can be operated synchronously, and the reliability can be improved.

[0012] In the preferred technical solution, a synchronous shunt device is arranged between the working oil port of the lifting electric control valve and the two lifting hydraulic elements arranged in pairs, the synchronous shunt device comprises two closed hydraulic motors which are coaxial and have the same specifications, the first working oil ports of the two closed hydraulic motors are communicated with one working oil port of the lifting electric control valve, and the second working oil ports of the two closed hydraulic motors are communicated with 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 operation can be ensured.

[0013] In the optional technical solution, the detection end of one oil pressure detector is connected with the high-pressure cavity oil circuit of the roller power hydraulic element. In the more preferred technical solution, the detection end of another oil pressure detector is connected with the low-pressure cavity oil circuit of the roller power hydraulic element; the controller controls the lifting electric control valve according to the hydraulic oil pressure of the high-pressure side (cavity) and the low-pressure side (cavity) of the roller power hydraulic element, and can control the lifting electric control valve according to the difference between the hydraulic oil pressure of the high-pressure side (cavity) and the low-pressure side (cavity). In this way, the sensitivity of the controller to the change of the hydraulic oil pressure can be increased, and the accuracy and precision of the lifting operation can be improved.

[0014] In the further technical solution, the two signal ends of one lifting electric control valve are connected with the control ends of the controller, respectively. In this way, bidirectional control of the lifting electric control valve can be realized, and then bidirectional (ascending and descending) control of the lifting hydraulic element and the lifting support can be realized.

[0015] In the optional technical solution, the lifting hydraulic element is a hydraulic cylinder, and the rod cavity and the rodless cavity of the hydraulic cylinder are connected with different working oil ports of the lifting electric control valve, respectively.

[0016] In the optional technical solution, the roller power hydraulic element can be a hydraulic motor. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 A mobile desert soil treatment machine is provided in the embodiment of the utility model.

[0018] Figure 2 A mobile desert soil treatment machine is provided in the embodiment of the utility model. Figure 1 A mobile desert soil treatment machine is provided in the embodiment of the utility model.

[0019] Figure 3 A mobile desert soil treatment machine is provided in the embodiment of the utility model. Figure 1 A mobile desert soil treatment machine is provided in the embodiment of the utility model.

[0020] Figure 4 A mobile desert soil treatment machine is provided in the embodiment of the utility model. Figure 1 A mobile desert soil treatment machine is provided in the embodiment of the utility model.

[0021] Figure 5 A mobile desert soil treatment machine is provided in the embodiment of the utility model.Figure 4 Schematic diagram of the principle of the synchronous split-flow device. DETAILED DESCRIPTION

[0022] The utility model is described in detail below with reference to the drawings. It should be noted that in this document, the orientation is determined with reference to the use state of the mobile desert soil treatment machine.

[0023] Please refer to Figure 1 , Figure 2 and Figure 3 , Figure 1 the external perspective view of the mobile desert soil treatment machine provided by the utility model embodiment; Figure 2 is the longitudinal sectional view of the mobile desert soil treatment machine shown in Figure 1 , and Figure 3 is the connection structure diagram of the frame and related parts of the mobile desert soil treatment machine shown in Figure 1 . As shown in the figure, the utility model provides a mobile desert soil treatment machine which comprises a frame 100, a walking system 200, and at least one desert soil atomization system 300.

[0024] The walking system 200 is installed on the frame 100, which can facilitate the movement of the desert soil treatment machine and improve the processing efficiency. The walking system 200 can be a vehicle or a mechanical moving system, which can be a wheeled walking system or a walking system of other structures. In this embodiment, the walking system is a tracked walking system. In order to adapt to the desert environment, the walking system in this embodiment comprises walking tracks located on both sides. The walking system can have its own power and can walk by itself; or it can not have its own power and can be towed by other equipment. In this embodiment, the walking system of the mobile desert soil treatment machine has its own power and can walk by itself.

[0025] As shown in Figure 2 and Figure 3 , in this embodiment, the mobile desert soil treatment machine comprises three desert soil atomization systems 300 arranged in sequence from front to back. The desert soil atomization system 300 comprises an atomization bin plate, two atomization rollers 320, and a roller driving device; the atomization bin plate forms an atomization bin with an opening below. In each atomization bin, two atomization rollers are arranged in pairs, and the reference numerals are 320a and 320b respectively; in special cases, more atomization rollers can also be arranged.

[0026] The desert soil atomization system 300 is also provided with a roller driving device, which can be installed on the frame 100 and used to drive the atomization rollers 320a and 320b to rotate. In this embodiment, the atomization rollers 320 are provided with separate roller driving devices to control the rotation speed of the atomization rollers respectively and ensure the power supply of the atomization rollers.

[0027] In this way, the atomizing roller 320a and the atomizing roller 320b can be located at a proper position below the surface of the desert soil to be treated during the movement of the mobile desert soil treatment machine, and rotate at a proper speed to bring the soil to be treated into the atomizing bin by the atomizing fins of the atomizing roller, and the rotation at the proper speed can make the surface soil fly and be atomized, thereby providing a premise for the atomization and mixing of the surface soil and the improving agent, achieving the surface layer treatment of the desert soil, forming a surface layer protection layer of the desert, and passivating the surface layer of the desert. In an embodiment, the atomizing roller 320a and the second atomizing roller 320b can be located at a distance of 200 mm from the surface of the desert soil to be treated, that is, the soil in a range of 200 mm of the surface layer of the desert can be passivated.

[0028] The inventor has conducted in-depth research on the causes and consequences of the atomizing roller being stuck or jammed, and combined with the power characteristics of the hydraulic system and the hydraulic actuator, the present application is based on the pressure change of the hydraulic actuator.

[0029] In an embodiment of the present application, the mobile desert soil treatment machine further comprises a lifting support 410 which is liftable and installed on the rack 100; and the atomizing roller 320 is rotatably installed on the lifting support 410 to be supported on the lifting support 410 while rotating.

[0030] As shown in Figure 4 As shown in Figure 1 The mobile desert soil treatment machine partial hydraulic control principle diagram is shown. The mobile desert soil treatment machine further comprises a hydraulic system. The hydraulic system comprises 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.

[0031] 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 a suitable specification, and can be installed on the rack 100 to drive the atomizing roller 320a and the atomizing roller 320b to rotate. In the present 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 to ensure the power supply of the atomizing roller 320.

[0032] The lifting hydraulic element 520 is used to drive the lifting support 410 to lift. The lifting hydraulic element 520 can be a telescopic hydraulic cylinder, and the two ends thereof are connected with the lifting support 410 and the rack 100 respectively, so that the distance between the lifting support 410 and the rack 100 changes when the hydraulic cylinder extends and retracts, thereby adjusting the height of the atomizing roller 320.

[0033] The lifting electric control valve 530 is connected between the lifting hydraulic element 520 and a hydraulic oil source, to control the on-off of the high-pressure oil supplied to the lifting hydraulic element 520, so as to stop or start the lifting hydraulic element 520. The lifting electric control valve 530 can be a proportional valve, to further control the flow of the high-pressure oil supplied to the lifting hydraulic element 520, so as to make the lifting hydraulic element 520 move at a suitable speed.

[0034] The detection end of the oil pressure detector is connected with the driving oil circuit of the roller power hydraulic element 510, and the signal output end is connected with the signal end of the controller 450, that is, to form a suitable pressure signal according to the pressure of the hydraulic oil. The control end of the controller 450 is connected with the signal of the lifting electric control valve 530, to control the lifting electric control valve 530 according to the driving oil pressure of the roller power hydraulic element 510, and further control the lifting hydraulic element 520. In the embodiment, a plurality of oil pressure detectors can be arranged corresponding to the roller power hydraulic element 510, to detect and obtain the driving oil pressure of each roller power hydraulic element 510.

[0035] When the atomizing roller 320 is stuck or stuck in the soil layer due to the fact that the soil layer is too hard or the particles are too large, and the rotating speed is reduced to a predetermined value or stopped, the driving oil circuit pressure of the roller power hydraulic element 510 will change greatly or have a pressure jump. At this time, due to the arrangement of the lifting support 410 and the hydraulic system, based on the pressure jump 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 jump of the driving oil circuit, the oil pressure detector generates and outputs a different electrical signal to the controller 450; the controller 450 generates a control signal according to the pressure jump, 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 oil circuit of the lifting hydraulic element 520 according to the control signal, to further make the lifting support 410 lift, so as to lift the corresponding atomizing roller 320, reduce the rotating resistance, and make the atomizing roller 320 restore the normal rotating speed. In this way, the atomizing roller can be prevented from being stuck or stuck, the downtime operation is reduced, and the processing efficiency and reliability of the mobile desert soil treatment machine are improved. In an embodiment of the present application, the detection end of the oil pressure detector is communicated with the high-pressure side hydraulic oil circuit of the roller power hydraulic element 510, and the upper limit value of the trigger pressure is set to 18 MPa, that is, when the high-pressure side pressure of the roller power hydraulic element 510 is detected to reach 18 MPa, the controller 450 sends a control signal to make the lifting electric control valve 530 change position, and further make the lifting hydraulic element 520 move (the hydraulic cylinder is shortened), the atomizing roller 320 is lifted, and the rotating resistance is reduced.

[0036] In this embodiment, every two lifting supports 410 are arranged in pairs and support two ends of one atomizing roller 320 respectively, that is, every two lifting supports 410 correspond to one atomizing roller 320. Every atomizing roller 320 is driven by one roller power hydraulic element 510 (hydraulic motor). Meanwhile, every two lifting hydraulic elements 520 are arranged in pairs and correspond to the arranged lifting supports 410 respectively. That is, as shown in Figure 4 , every two lifting hydraulic elements 520 correspond to one roller power hydraulic element 510 (hydraulic motor) and are connected by the controller 450 to form a control unit. Figure 4 In this embodiment, six roller power hydraulic elements 510 (hydraulic motors) and twelve lifting hydraulic elements 520 (hydraulic cylinders) are shown. The twelve lifting hydraulic elements 520 (hydraulic cylinders) are divided into six groups, each group corresponding to one roller power hydraulic element 510 (hydraulic motor). Every lifting electric control valve 530 controls two lifting hydraulic elements 520 arranged in pairs. In this way, the two ends of the atomizing roller 320 can be lifted or lowered synchronously, avoiding the atomizing roller 320 from tilting or being damaged, and ensuring the reliability.

[0037] According to the above description, every two atomizing rollers 320 can also be arranged in pairs; every two lifting supports 410 are arranged in pairs, one lifting support 410 supports one end of the atomizing roller 320 arranged in pairs, and the other lifting support 410 supports the other end of the atomizing roller 320 arranged in pairs, that is, every pair of atomizing rollers 320 corresponds to two lifting supports 410. Every two lifting hydraulic elements 520 are arranged in pairs and correspond to the arranged lifting supports 410 respectively; every lifting electric control valve 530 controls two lifting hydraulic elements 520 arranged in pairs. In this way, every pair of atomizing rollers 320 can be operated synchronously, improving the reliability.

[0038] As shown in Figure 4 , the working oil port of the lifting electric control valve 530 is provided with a synchronous shunt device 540 between the two lifting hydraulic elements 520 arranged in pairs. As shown in Figure 5As shown, the synchronous flow dividing device 540 includes two coaxial rotating and same specification closed hydraulic motors, preferably closed bidirectional hydraulic motors, the first working oil port A of the two closed hydraulic motors communicates with the working oil port of the lifting electric control valve 530, and the second working oil port B of the two closed hydraulic motors respectively communicates with the working oil cavity of the two lifting hydraulic elements 520 (hydraulic cylinders) arranged in pairs, so as to supply hydraulic oil to the high pressure cavity of the two lifting hydraulic elements 520 (hydraulic cylinders) or make the low pressure cavity of the two lifting hydraulic elements 520 (hydraulic cylinders) return synchronously. In this way, the two closed hydraulic motors rotate synchronously, the high pressure oil output or the low pressure oil return of the working oil port of the two closed hydraulic motors has the same displacement, and then the synchronous action of the lifting hydraulic elements 520 arranged in pairs can be ensured, and the reliability of the operation can be ensured. In the embodiment, the working oil port of the two closed hydraulic motors respectively communicates with the rodless cavity of the two lifting hydraulic elements 520 (hydraulic cylinders) arranged in pairs, and the piston rod of the hydraulic cylinder is connected with the rack 100, and the cylinder body is connected with the lifting support 410, so that when the hydraulic cylinder contracts, the rodless return oil flow is the same, the synchronous contraction can be ensured, and the synchronous elongation can be ensured when elongating.

[0039] In one embodiment, the detection end of the corresponding oil pressure detector can be connected with the high pressure cavity oil circuit of the roller power hydraulic element 510, so as to detect the high pressure hydraulic oil pressure. In another embodiment, the detection end of another oil pressure detector is connected with the low pressure cavity oil circuit of the roller power hydraulic element 510 at the same time, that is, the oil pressure of the high pressure side and the low pressure side of the roller power hydraulic element 510 is detected at the same time. At the same time, the controller 450 controls the lifting electric control valve 530 according to the pressure difference of the high pressure cavity and the low pressure cavity of the roller power hydraulic element 510. When the resistance of the atomizing roller 320 is large or the atomizing roller 320 stops rotating, the pressure difference between the high pressure cavity and the low pressure cavity will change more obviously, so that the sensitivity of the controller to the change of the hydraulic oil pressure can be increased, and the accuracy and precision of the lifting operation can be improved.

[0040] In the embodiment, the lifting electric control valve 530 is a bidirectional electric control valve. The two signal ends of the lifting electric control valve 530 are connected with the two control ends of the controller 450 respectively. In this way, the bidirectional control of the lifting electric control valve 530 can be realized, and then the bidirectional (up and down) control of the lifting hydraulic element 520 and the lifting support 410 can be realized.

[0041] According to the above description, according to actual needs, the controller 450 can be used to control the up and down of the lifting hydraulic element 520 and the atomizing roller 320 according to corresponding strategies. For example, the oil pressure of the high pressure side or the 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 the like.

[0042] The above has carried out the detailed introduction to the specific implementation provided by the utility model. The principle and implementation mode of the utility model are described by applying specific examples in this paper, and the above embodiment description is only used for helping to understand the core idea of the utility model. It should be pointed out that, for ordinary skilled person in the art, without departing from the principle of the utility model, the utility model can be improved and modified in several ways, and these improvements and modifications also fall within the protection scope of the utility model claim.

Claims

1. A mobile desert soil treatment machine comprising a frame (100), a traveling system (200) and a desert soil atomization system (300); the traveling system (200) is installed on the frame (100); the desert soil atomization system (300) comprises at least two atomization rollers (320); characterized in that, Further comprising a hydraulic system and a lifting support (410) which is installed on the frame (100) in a liftable manner; the atomizing roller (320) is rotatably installed on the lifting support (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 support (410) to lift; 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 with the driving oil circuit of the roller power hydraulic element (510), and the signal output end is connected with the signal end of the controller (450); the control end of the controller (450) is connected with the signal of the lifting electric control valve (530), so as 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).

2. The mobile desert soil treatment machine of claim 1, wherein, Every two lifting supports (410) are arranged in pairs and are respectively supported at two ends of one atomizing roller (320); every two lifting hydraulic elements (520) are arranged in pairs and are respectively arranged corresponding to the lifting supports (410) arranged in pairs; Every lifting electric control valve (530) controls two lifting hydraulic elements (520) arranged in pairs.

3. The mobile desert soil treatment machine of claim 1, wherein, Every two atomizing rollers (320) are arranged in pairs. Every two lifting supports (410) are arranged in pairs, wherein one lifting support (410) simultaneously supports one end of the atomizing rollers (320) arranged in pairs, and the other lifting support (410) simultaneously supports the other end of the atomizing rollers (320) arranged in pairs; Every two lifting hydraulic elements (520) are arranged in pairs and are respectively arranged corresponding to the lifting supports (410) arranged in pairs; Every lifting electric control valve (530) controls two lifting hydraulic elements (520) arranged in pairs.

4. The mobile desert soil treatment machine of claim 2 or 3, wherein, A synchronous shunt device (540) is arranged between the working oil ports of the lifting electric control valve (530) and the two lifting hydraulic elements (520) arranged in pairs, the synchronous shunt device (540) comprises two closed hydraulic motors which are coaxially rotatable and have the same specifications, the first working oil ports (A) of the two closed hydraulic motors are communicated with one 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 communicated with the working oil cavities of the two lifting hydraulic elements (520) arranged in pairs.

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

6. The mobile desert soil treatment machine of claim 5, wherein, The detection end of one oil pressure detector is connected with 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 pressure of the high-pressure side and the low-pressure side of the roller power hydraulic element (510).

7. The mobile desert soil treatment machine according to any one of claims 1 to 3, characterized in that, Two signal ends of one lifting electric control valve (530) are connected with two control ends of the controller (450) respectively.

8. The mobile desert soil treatment 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 cavity and the rodless cavity of the hydraulic cylinder are connected with different working oil ports of the lifting electric control valve (530) respectively.

9. The mobile desert soil treatment 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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