Hydraulic control system and control method for garbage compression station

Abstract

The invention provides a hydraulic control system and method for a garbage compression station, and belongs to the technical field of environmental protection. The oil pumping mechanism is connected to the oil tank; the action mechanism comprises a scraper rotating unit, a sliding plate moving unit and a hopper rotating unit; and the multi-way valve is arranged between the oil pumping mechanism and the actuating mechanism and is used for opening or closing an oil way between the oil pumping mechanism and the actuating mechanism. The design of a liquid path system is simplified, the production cost is reduced, pressure closed-loop control is realized, and the rotating speed of the motor of the oil pumping mechanism can be adjusted under the condition of no load and no action, so that the oil supply quantity and the oil supply pressure are accurately controlled during the next action, and the purposes of energy conservation and environmental protection are achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of environmental protection equipment, and in particular relates to a hydraulic control system and a control method for a garbage compression station. Background Art

[0002] A garbage compression station is a type of garbage transfer equipment installed at a garbage transfer station, including vertical garbage compression stations, side-flip garbage compression stations, scraper-type garbage compression stations, and other types. The main purpose is to concentrate the garbage into the garbage bin. After the garbage bin is loaded to a certain capacity, the garbage bin is transported away by a hook truck. In the related prior art, the scraper-type garbage compression station includes a hopper, a slide plate, and a scraper. The hopper is rotatably arranged to achieve expansion and contraction, the slide plate can be moved and adjusted, and the scraper is rotatably arranged on the slide plate. The movement of the slide plate drives the scraper to scrape the garbage in the hopper into the garbage bin. The actions of each action component are controlled by a group of hydraulic cylinders, and the hydraulic system is complex and costly. Summary of the invention

[0003] The present invention aims to solve at least one of the above technical problems existing in the prior art. To this end, in a first aspect, the present invention provides a hydraulic control system for a garbage compression station, which can solve the problems of the complexity and high cost of the traditional hydraulic system.

[0004] In a second aspect, the present invention proposes a garbage compression station hydraulic control method using the above-mentioned garbage compression station hydraulic control system.

[0005] The hydraulic control system for a garbage compression station according to the first embodiment of the present invention is applied to a scraper-type garbage compression station, comprising: tank; An oil pumping mechanism, connected to the oil tank, for pumping hydraulic oil; The action mechanism includes a scraper rotating unit, a slide moving unit, and a hopper rotating unit. The scraper rotating unit is used to control the scraper to rotate around the slide, the slide moving unit is used to control the slide to move, and the hopper rotating unit is used to control the hopper to be retracted and extended; A multi-way valve is arranged between the oil pumping mechanism and the actuating mechanism, and is used to control the conduction or closing of the oil circuits between the scraper rotating unit, the slide moving unit, the hopper rotating unit and the oil pumping mechanism.

[0006] The garbage compression station hydraulic control system according to the embodiment of the present invention has at least the following beneficial effects: the garbage compression station hydraulic control system in the present invention realizes the on-off control of the action mechanism and the oil pumping mechanism by setting a multi-way valve, simplifies the design of the hydraulic system, is beneficial to reduce production costs, and helps to achieve pressure closed-loop control. The motor speed of the oil pumping mechanism can be adjusted when it is idling and not in action, so as to accurately control the oil supply and oil supply pressure in the next action, thereby achieving the purpose of energy saving and environmental protection.

[0007] According to some embodiments of the present invention, the action mechanism also includes a positioning control unit, a frame lifting unit, and a frame transverse movement unit. The positioning control unit is used to control the positioning part on the frame to match the garbage bin, the frame lifting unit is used to control the lifting of the frame, and the frame transverse movement unit is used to control the transverse movement of the frame to switch the garbage bin; the multi-way valve is also used to control the oil circuit between the positioning control unit, the frame lifting unit, the frame transverse movement unit and the oil pumping mechanism to be turned on or off.

[0008] According to some embodiments of the present invention, the oil pumping mechanism is configured as a dual pump system, the dual pump system is provided with a first output oil circuit and a second output oil circuit, the multi-way valve is provided with a first input oil circuit and a second input oil circuit, the first input oil circuit is connected to the first output oil circuit, the second input oil circuit is connected to the second output oil circuit, and the second input oil circuit is provided with a control unit that is unidirectionally connected to the first input oil circuit, the scraper rotating unit, the slide moving unit, the hopper rotating unit, and the frame transverse movement unit are all connected to the first input oil circuit, and the positioning control unit and the frame lifting unit are connected to the second input oil circuit.

[0009] According to some embodiments of the present invention, the first input oil circuit and the second input oil circuit are provided with at least one of a pressure sensor and a pressure gauge.

[0010] According to some embodiments of the present invention, the frame transverse movement unit is provided with a first hydraulic motor and a second hydraulic motor in parallel, and a flow dividing and combining valve is provided between the first hydraulic motor and the second hydraulic motor.

[0011] According to some embodiments of the present invention, the scraper-type garbage compression station comprises: A frame, wherein a transverse sliding rail is arranged at the bottom of the frame, the frame is supported on the transverse sliding rail by rollers, and a mounting frame is arranged at the upper end of the frame for lifting; A slide plate, the slide plate is arranged on the mounting frame for forward and backward movement; A scraper, the scraper being rotatably disposed at the front end of the slide plate; A hopper, the hopper is flipped and arranged at the front end of the frame; A positioning part is telescopically arranged on the frame and is used for positioning the garbage box.

[0012] The garbage compression station hydraulic control method according to the second embodiment of the present invention is applied to the above-mentioned garbage compression station hydraulic control system, comprising the following steps: Initial preparation: detecting the states of the scraper rotating unit, the slide moving unit, the hopper rotating unit, the positioning control unit, the frame lifting unit, and the frame transverse movement unit and adjusting their states; Garbage compression: The hopper is turned upward by the hopper rotating unit to pour the garbage into the inlet of the garbage bin, and then the slide is moved forward by the slide moving unit, the scraper is rotated downward by the scraper rotating unit, and the slide is moved backward by the slide moving unit to press the garbage into the garbage bin; Reset detection: Control the scraper, slide plate, and hopper to reset, and detect the garbage storage in the garbage bin. If the garbage storage does not reach the set amount, repeat the above garbage compression steps. If the garbage reaches the set amount, replace the garbage bin; Garbage bin replacement: the hopper is controlled to flip upwards through the hopper rotation unit, the positioning part on the frame is adjusted to separate from the garbage bin through the positioning control unit, the frame is controlled to rise through the frame lifting unit, and then the frame is controlled to move to the top of other garbage bins through the frame transverse movement unit, and then reset in sequence.

[0013] The hydraulic control method for a garbage compression station according to an embodiment of the present invention has at least the following beneficial effects: the hydraulic control method for a garbage compression station in the present invention, by applying the aforementioned hydraulic control system for a garbage compression station, is conducive to improving the efficiency of the hydraulic transmission, can better control the output power of the oil pumping mechanism, simplifies the design of the hydraulic system, is conducive to reducing production costs, and helps to achieve pressure closed-loop control. The motor speed of the oil pumping mechanism can be adjusted when it is idling and not in action, so as to accurately control the oil supply amount and oil supply pressure at the next action, thereby achieving the purpose of energy saving and environmental protection.

[0014] According to some embodiments of the present invention, when the slide plate and the scraper are controlled to perform partial actions during the garbage compression process, the second input oil circuit is connected to the first input oil circuit through the control unit.

[0015] According to some embodiments of the present invention, when the second input oil circuit is connected to the first input oil circuit by the control unit, the motor speed of the dual pump system is reduced.

[0016] According to some embodiments of the present invention, the rack lifting unit is separated from the garbage box by controlling the mounting frame to flip upward or lift up.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and some additional aspects and advantages will become obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 A schematic diagram of a hydraulic circuit of a hydraulic control system of a garbage compression station in the present invention; Figures 2 to 4 This is a structural diagram of a scraper-type garbage compression station.

[0019] In the figure: 100-Fuel tank 200-oil pump mechanism; 201-first output oil circuit, 202-second output oil circuit; 300-Multi-way valve; 301 - first input oil circuit, 302 - second input oil circuit, 303 - control unit; 401-scraper rotating unit, 402-slide moving unit, 403-hopper rotating unit; 404-frame transverse movement unit, 405-positioning control unit, 406-frame lifting unit; 500-garbage box, 501-frame, 502-hopper; 503-mounting frame, 504-slide plate, 505-scraper. DETAILED DESCRIPTION

[0020] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0021] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0022] In the description of the present invention, "several" means more than one, "many" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0023] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0024] In the description of the present invention, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0025] A garbage compression station is a type of garbage transfer equipment installed at a garbage transfer station, including vertical garbage compression stations, side-flip garbage compression stations, scraper-type garbage compression stations, and other types. The main purpose is to concentrate the garbage into the garbage bin. After the garbage bin is loaded to a certain capacity, the garbage bin is transported away by a hook truck. In the related prior art, the scraper-type garbage compression station includes a hopper, a slide plate, and a scraper. The hopper is rotatably arranged to achieve expansion and contraction, the slide plate can be moved and adjusted, and the scraper is rotatably arranged on the slide plate. The movement of the slide plate drives the scraper to scrape the garbage in the hopper into the garbage bin. The actions of each action component are controlled by a group of hydraulic cylinders, and the hydraulic system is complex and costly.

[0026] In a first aspect, the present invention provides a hydraulic control system for a garbage compression station, which can solve the problems of complex and high cost of traditional hydraulic systems.

[0027] In a second aspect, the present invention proposes a garbage compression station hydraulic control method using the above-mentioned garbage compression station hydraulic control system.

[0028] Reference Figure 1According to the first aspect of the present invention, the garbage compression station hydraulic control system is applied to the scraper 505 type garbage compression station. The hydraulic control system includes an oil tank 100, an oil pumping mechanism 200, an action mechanism and a multi-way valve 300, wherein the oil pumping mechanism 200 is connected to the oil tank 100 for pumping hydraulic oil, and the multi-way valve 300 is arranged between the action mechanism and the oil pumping mechanism 200 for controlling the oil circuit between the action mechanism and the oil pumping mechanism 200. The action mechanism includes a scraper rotating unit 401, a slide moving unit 402, and a hopper rotating unit 403. The scraper rotating unit 401 is used to control the scraper 505 to rotate around the slide 504, the slide moving unit 402 is used to control the movement of the slide 504, and the hopper rotating unit 403 is used to control the retraction and extension of the hopper 502. It can be understood that the multi-way valve 300 can control the oil circuit between the scraper rotating unit 401, the slide moving unit 402, the hopper rotating unit 403 and the oil pumping mechanism 200 respectively.

[0029] In the traditional scheme, the hydraulic system design is cumbersome, which affects the hydraulic control efficiency and production cost. The garbage compression station hydraulic control system of this embodiment realizes the on-off control of the action mechanism and the oil pumping mechanism 200 by setting a multi-way valve 300, simplifies the design of the hydraulic system, is conducive to reducing production costs, and helps to achieve pressure closed-loop control. The motor speed of the oil pumping mechanism 200 can be adjusted when there is no load and no action, so as to accurately control the oil supply amount and oil supply pressure in the next action, so as to achieve the purpose of energy saving and environmental protection.

[0030] In order to facilitate understanding of the corresponding action control, this embodiment describes the structure of the scraper 505 type garbage compression station. Figures 2 to 4 The scraper 505 type garbage compression station mainly includes a frame 501, a slide plate 504, a scraper 505, a hopper 502 and a positioning part. A transverse sliding rail is arranged at the bottom of the frame 501, and the frame 501 is supported on the transverse sliding rail by rollers. At the same time, a mounting frame 503 is arranged at the upper end of the frame 501 for lifting. The mounting frame 503 can be installed in a vertical lifting manner, or can be turned over by a rotating connection. The slide plate 504 can be arranged on the mounting frame 503 so as to move forward and backward. The scraper 505 is rotatably arranged at the front end of the slide plate 504 and can turn up and down around the slide plate 504. The hopper 502 is turned over and arranged at the front end of the frame 501. During the turning process, the hopper 502 can be unfolded downward to the front end of the frame 501, or can be folded upward and kept facing downward. The positioning part can be telescopically arranged on the frame 501 for positioning the garbage bin 500.

[0031] Specific, combined Figure 2 and Figure 3The garbage bin 500 is placed under the rack 501, and the rack 501 can dock with different garbage bins 500 by moving on the transverse slide rail. The positioning part is used to lock when docking with the garbage bin 500, such as inserting into the corresponding hole of the garbage bin 500, or extending to both sides of the garbage bin 500 for positioning. The mounting frame 503 achieves docking and separation of the hopper 502, the scraper 505 and the pouring port at the top of the front end of the garbage bin 500 through lifting and lowering adjustment. The slide plate 504 is used to drive the scraper 505 to compact the garbage backwards and press it into the rear end of the garbage bin 500.

[0032] Therefore, refer to Figure 1 In some embodiments of the present invention, the action mechanism further includes a positioning control unit 405, a frame lifting unit 406, and a frame transverse movement unit 404. The positioning control unit 405 is used to control the positioning part on the frame 501 to match the garbage bin 500, the frame lifting unit 406 is used to control the lifting and lowering of the mounting frame 503, and the frame transverse movement unit 404 is used to control the transverse movement of the frame 501 to switch the garbage bin 500. Correspondingly, the multi-way valve 300 is also used to control the oil circuit between the positioning control unit 405, the frame lifting unit 406, the frame transverse movement unit 404 and the oil pumping mechanism 200 to be open or closed.

[0033] Reference Figure 1 In some embodiments of the present invention, the oil pump mechanism 200 is configured as a dual pump system, and the dual pump system is provided with a first output oil circuit 201 and a second output oil circuit 202, wherein the output pressure of the first output oil circuit 201 is greater than that of the second output oil circuit 202, that is, the first output oil circuit 201 is a high-pressure oil circuit, and the second output oil circuit 202 is a low-pressure oil circuit (the high pressure and low pressure here only refer to the difference between the two, and do not limit the hydraulic pressure to a certain value). The dual pump system is driven and controlled by the same motor.

[0034] Reference Figure 1The multi-way valve 300 is provided with a first input oil circuit 301 and a second input oil circuit 302. The first input oil circuit 301 is connected to the first output oil circuit 201, and the second input oil circuit 302 is connected to the second output oil circuit 202. In addition, the second input oil circuit 302 is provided with a control unit 303 which is unidirectionally connected to the first input oil circuit 301. Through the adjustment of the control unit 303, the hydraulic oil of the first input oil circuit 301 cannot enter the second input oil circuit 302, while the hydraulic oil of the second input oil circuit 302 can be sent to the first input oil circuit 301 when needed. The scraper rotating unit 401, the slide moving unit 402, the hopper rotating unit 403, and the frame transverse movement unit 404 are all connected to the first input oil circuit 301, while the positioning control unit 405 and the frame lifting unit 406 are connected to the second input oil circuit 302. The structural setting of this embodiment can be used to specifically drive the corresponding action units with high pressure and low pressure, which is conducive to reducing energy consumption and promoting energy conservation and environmental protection.

[0035] In some embodiments, the control unit 303 is configured as a one-way valve.

[0036] In some embodiments, the control unit 303 is configured as a combination of a one-way valve and a shut-off valve or a throttle valve.

[0037] In some embodiments of the present invention, a pressure sensor is provided in the first input oil circuit 301 to monitor the internal hydraulic pressure, and a pressure gauge is provided in the second input oil circuit 302. It is understood that the pressure sensor and the pressure gauge can be interchanged or combined, and are not limited to the configuration of this embodiment.

[0038] Reference Figure 1 In some embodiments of the present invention, the frame transverse movement unit 404 is provided with a first hydraulic motor and a second hydraulic motor in parallel, and a flow divider and collector valve is provided between the first hydraulic motor and the second hydraulic motor. The first hydraulic motor is used to drive the rollers at the front end of the frame 501 to walk, and the second hydraulic motor is used to drive the rollers at the rear end of the frame 501 to walk. The two are arranged in parallel to achieve synchronous drive, and the design of the flow divider and collector valve helps to improve the stability and synchronization of walking.

[0039] In some embodiments of the present invention, the multi-way valve 300 is provided with a solenoid valve corresponding to each action unit for corresponding adjustment to control the reciprocating adjustable action of each action unit, such as controlling the frame 501 to move left or right.

[0040] An embodiment of the second aspect of the present invention provides a hydraulic control method for a garbage compression station, which is applied to the above-mentioned hydraulic control system of the garbage compression station, and includes the following steps: Initial preparation: detecting the states of the scraper rotating unit 401, the slide moving unit 402, the hopper rotating unit 403, the positioning control unit 405, the frame lifting unit 406, and the frame transverse moving unit 404 and adjusting their states; Garbage compression: The hopper 502 is turned upward by the hopper rotating unit 403 to pour the garbage into the pouring port of the garbage bin 500, and then the slide plate 504 is controlled to move forward by the slide plate moving unit 402, the scraper 505 is controlled to rotate downward by the scraper rotating unit 401, and the slide plate 504 is controlled to move backward by the slide plate moving unit 402 to press the garbage into the garbage bin 500; Reset detection: control the scraper 505, the slide plate 504, and the hopper 502 to reset, and detect the garbage storage amount in the garbage box 500. If the garbage storage amount does not reach the set amount, repeat the above-mentioned garbage compression steps. If the garbage storage amount reaches the set amount, replace the garbage box 500; Replacement of the garbage bin 500: control the hopper 502 to flip upwards through the hopper rotation unit 403, adjust the positioning part on the frame 501 to separate from the garbage bin 500 through the positioning control unit 405, control the frame 501 to rise through the frame lifting unit 406, and then control the frame 501 to move to the top of other garbage bins 500 through the frame transverse movement unit 404, and then reset them in sequence.

[0041] It can be understood that the garbage compression station hydraulic control method in the present invention, by applying the aforementioned garbage compression station hydraulic control system, is conducive to improving the hydraulic transmission efficiency, can better control the output power of the oil pumping mechanism 200, simplifies the design of the hydraulic system, is conducive to reducing production costs, and helps to achieve pressure closed-loop control. The motor speed of the oil pumping mechanism 200 can be adjusted when it is idling and not in action, so as to accurately control the oil supply and oil supply pressure in the next action, thereby achieving the purpose of energy saving and environmental protection.

[0042] In some embodiments of the present invention, when the slide plate 504 and the scraper 505 are controlled to perform partial movements during the garbage compression process, the second input oil circuit 302 and the first input oil circuit 301 are connected through the control unit 303, so that the second output oil circuit 202 is used to supplement the hydraulic oil for the movement of the slide plate 504 and the scraper 505, so as to achieve the effect of reducing the motor speed but increasing the hydraulic oil, thereby increasing the movement speed of the slide plate 504 and the scraper 505 or increasing the driving force.

[0043] In some embodiments of the present invention, when the second input oil circuit 302 and the first input oil circuit 301 are connected through the control unit 303, the motor speed of the dual pump system is reduced to avoid motor overload, while improving the driving effect on the slide plate 504 and the scraper 505.

[0044] In some embodiments of the present invention, the rack lifting unit 406 is separated from the garbage box 500 by controlling the mounting frame 503 to flip or lift upward.

[0045] In some embodiments of the present invention, the garbage compression station hydraulic control method comprises the following steps: First, the pressure of the oil circuit is detected by the pressure sensor and the pressure gauge. Since the hydraulic system is not started, an alarm is issued when the oil circuit pressure is detected to be greater than 1Mpa. Then, the liquid level of the oil tank 100 is detected, and an alarm is also issued if the liquid level is too low.

[0046] Then, the states of the scraper rotating unit 401, the slide moving unit 402, the hopper rotating unit 403, the positioning control unit 405, the frame lifting unit 406, and the frame transverse movement unit 404 are detected, and their states are adjusted to: the frame 501 matches the garbage bin 500, the positioning part is positioned and locked, the scraper 505 is in an upward flipped state, the slide 504 is in a backward withdrawn state, the hopper 502 is in a state of being downwardly extended to the front end of the garbage bin 500 close to the ground, and the mounting frame 503 is in a non-lifted state butt-jointed with the garbage bin 500.

[0047] At this time, the entire hydraulic system enters the standby working state.

[0048] When receiving the instruction to load the hopper 502 (the instruction can be issued manually, automatically by setting a weighing method for the hopper 502, or in other forms, which are not specifically limited here), the motor speed of the dual pump system is controlled to be 1500 rpm (the speed units mentioned in this embodiment are all r / min, which will not be repeated below), the multi-way valve 300 controls the hopper rotation unit 403 to be connected, controls the hopper 502 to flip upward, and dumps the garbage into the pouring port of the garbage bin 500.

[0049] At this time, the motor speed is adjusted to 2000 rpm, and the multi-way valve 300 controls the slide moving unit 402 to be connected, and controls the slide 504 to move forward quickly.

[0050] Then adjust the motor speed to 1500 rpm, and adjust the control unit 303 to connect the second input oil circuit 302 to the first input oil circuit 301, the multi-way valve 300 controls the scraper rotation unit 401 to be connected, and controls the scraper 505 to rotate downward to compress the garbage.

[0051] Then, the multi-way valve 300 is switched to control the slide moving unit 402 to be connected, and the slide 504 is controlled to move backward, thereby driving the scraper 505 to move backward to press the garbage into the garbage box 500.

[0052] Then, the motor speed is adjusted to 1500 rpm, and the control unit 303 is adjusted to connect the second input oil circuit 302 to the first input oil circuit 301 , and the multi-way valve 300 controls the slide plate moving unit 402 to connect, and controls the slide plate 504 to withdraw forward.

[0053] The control unit 303 is closed, and the motor speed is adjusted to 1500 rpm. The multi-way valve 300 controls the scraper rotating unit 401 to be connected, and controls the scraper 505 to rotate upward and reset.

[0054] Then, the motor speed is adjusted to 1500 rpm, and the control unit 303 is adjusted to connect the second input oil circuit 302 to the first input oil circuit 301 , and the multi-way valve 300 controls the slide plate moving unit 402 to connect, and controls the slide plate 504 to reset backward.

[0055] Finally, the control unit 303 is closed, and the motor speed is adjusted to 1500 rpm. The multi-way valve 300 controls the hopper rotating unit 403 to be connected, and controls the hopper 502 to be opened and reset downward, and at this time, a garbage compression is completed.

[0056] In the above steps, by detecting the garbage storage in the garbage bin 500, when the garbage storage reaches a set value, after the scraper 505 rotates downward to compress the garbage, the control unit 303 is closed, the motor speed is adjusted to 2000 revolutions, and the multi-way valve 300 controls the slide moving unit 402 to be connected, controls the slide 504 to move backward, and drives the scraper 505 to move backward to press the garbage into the garbage bin 500. This situation mainly applies to the situation where the garbage storage is close to full load, and the resistance to garbage compression is large, so the connection between the second input oil circuit 302 and the first input oil circuit 301 is closed, and the motor is directly controlled to drive at full rotation to provide the highest driving hydraulic pressure.

[0057] After the garbage compression is completed, the garbage storage amount in the garbage box 500 is detected. If the garbage storage amount does not reach the set amount, the above garbage compression step is repeated. If the garbage reaches the set amount, the following garbage box 500 replacement step is performed.

[0058] The steps for replacing the garbage bin 500 are as follows: The motor speed is adjusted to 1500 rpm, and the multi-way valve 300 controls the hopper rotating unit 403 to be connected, and controls the hopper 502 to rotate upward to the end of the stroke.

[0059] The motor speed is then adjusted to 500 revolutions per minute, and the multi-way valve 300 controls the positioning control unit 405 to be connected, thereby controlling the positioning unit to be separated from the garbage bin 500 .

[0060] The motor speed is then adjusted to 1000 revolutions per minute, and the multi-way valve 300 controls the frame lifting unit 406 to be connected, and controls the mounting frame 503 to flip upward, so that the hopper 502 and the like are separated from the garbage box 500 .

[0061] Then, the motor speed is adjusted to 800 rpm, and the multi-way valve 300 controls the frame transverse movement unit 404 to be connected, and controls the frame 501 to move transversely to the top of the next garbage bin 500, or to an empty position, and then move and dock after the garbage bin 500 is in place.

[0062] Finally, follow the above steps in reverse order to restore to the standby working state for the next garbage compression.

[0063] The garbage compression station hydraulic control system and control method of the present invention can accurately control the oil pressure of each action, which is beneficial to reducing costs and increasing efficiency, and helps to reduce energy consumption, thus being more energy-saving and environmentally friendly.

[0064] It is understandable that the hydraulic control method for the garbage compression station in the present invention is based on the dual oil circuit design of the multi-way valve 300, so that when the garbage is compressed, the confluence drive can be performed, and low-speed high-pressure drive can be achieved, which can not only meet the requirements of garbage compression, but also avoid motor overload. In some cases, the motor is controlled to run at a full-load speed of 2000 rpm, which can also meet the high-pressure drive, and in this case, the confluence operation will not be performed, so there will be no oil circuit overload.

[0065] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the relevant technical field without departing from the purpose of the present invention. In addition, the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

Claims

1. A hydraulic control system for a garbage compression station, characterized in that: Applied to scraper type garbage compacting station, including: tank; An oil pumping mechanism, connected to the oil tank, for pumping hydraulic oil; The action mechanism includes a scraper rotating unit, a slide moving unit, and a hopper rotating unit. The scraper rotating unit is used to control the scraper to rotate around the slide, the slide moving unit is used to control the slide to move, and the hopper rotating unit is used to control the hopper to be retracted and extended; A multi-way valve is arranged between the oil pumping mechanism and the actuating mechanism, and is used to control the conduction or closing of the oil circuits between the scraper rotating unit, the slide moving unit, the hopper rotating unit and the oil pumping mechanism.

2. The hydraulic control system for a garbage compression station according to claim 1, characterized in that: The action mechanism also includes a positioning control unit, a frame lifting unit, and a frame transverse movement unit. The positioning control unit is used to control the positioning part on the frame to match the garbage bin, the frame lifting unit is used to control the lifting of the frame, and the frame transverse movement unit is used to control the transverse movement of the frame to switch the garbage bin; the multi-way valve is also used to control the oil circuit between the positioning control unit, the frame lifting unit, the frame transverse movement unit and the oil pumping mechanism to be turned on or off.

3. The hydraulic control system for a garbage compression station according to claim 2, characterized in that: The oil pumping mechanism is configured as a dual pump system, the dual pump system is provided with a first output oil circuit and a second output oil circuit, the multi-way valve is provided with a first input oil circuit and a second input oil circuit, the first input oil circuit is connected to the first output oil circuit, the second input oil circuit is connected to the second output oil circuit, and the second input oil circuit is provided with a control unit that is unidirectionally connected to the first input oil circuit, the scraper rotating unit, the slide moving unit, the hopper rotating unit, and the frame transverse movement unit are all connected to the first input oil circuit, and the positioning control unit and the frame lifting unit are connected to the second input oil circuit.

4. The hydraulic control system for a garbage compression station according to claim 3, characterized in that: The first input oil circuit and the second input oil circuit are provided with at least one of a pressure sensor and a pressure gauge.

5. The hydraulic control system for a garbage compression station according to claim 3, characterized in that: The frame transverse movement unit is provided with a first hydraulic motor and a second hydraulic motor in parallel, and a flow dividing and combining valve is provided between the first hydraulic motor and the second hydraulic motor.

6. The hydraulic control system for a garbage compression station according to claim 3, characterized in that: The scraper type garbage compression station comprises: A frame, wherein a transverse sliding rail is arranged at the bottom of the frame, the frame is supported on the transverse sliding rail by rollers, and a mounting frame is arranged at the upper end of the frame for lifting; A slide plate, the slide plate is arranged on the mounting frame for forward and backward movement; A scraper, the scraper being rotatably disposed at the front end of the slide plate; A hopper, the hopper is flipped and arranged at the front end of the frame; A positioning part is telescopically arranged on the frame and is used for positioning the garbage box.

7. A method for controlling the hydraulic pressure of a garbage compression station, characterized in that: The hydraulic control system for a garbage compression station as claimed in claim 6 comprises the following steps: Initial preparation: detecting the states of the scraper rotating unit, the slide moving unit, the hopper rotating unit, the positioning control unit, the frame lifting unit, and the frame transverse movement unit and adjusting their states; Garbage compression: The hopper is turned upward by the hopper rotating unit to pour the garbage into the inlet of the garbage bin, and then the slide is moved forward by the slide moving unit, the scraper is rotated downward by the scraper rotating unit, and the slide is moved backward by the slide moving unit to press the garbage into the garbage bin; Reset detection: Control the scraper, slide plate, and hopper to reset, and detect the garbage storage in the garbage bin. If the garbage storage does not reach the set amount, repeat the above garbage compression steps. If the garbage reaches the set amount, replace the garbage bin; Garbage bin replacement: the hopper is controlled to flip upwards through the hopper rotation unit, the positioning part on the frame is adjusted to separate from the garbage bin through the positioning control unit, the frame is controlled to rise through the frame lifting unit, and then the frame is controlled to move to the top of other garbage bins through the frame transverse movement unit, and then reset in sequence.

8. The hydraulic control method for a garbage compression station according to claim 7, characterized in that: When the slide plate and the scraper are controlled to perform partial actions during the garbage compression process, the second input oil circuit is connected to the first input oil circuit through the control unit.

9. The garbage compression station hydraulic control method according to claim 8, characterized in that: When the second input oil circuit and the first input oil circuit are connected by the control unit, the motor speed of the dual pump system is reduced.

10. The garbage compression station hydraulic control method according to claim 7, characterized in that: The frame lifting unit is separated from the garbage box by controlling the mounting frame to flip upward or lift up.

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