Garbage can displacement station hydraulic system and garbage compression station

Abstract

The utility model belongs to the technical field of garbage disposal equipment and provides a garbage can displacement station hydraulic system and a garbage compression station, the garbage can displacement station hydraulic system comprises an oil supply unit and a plurality of displacement station units, the plurality of displacement station units are hydraulically connected with the oil supply unit through a main reversing valve; the main reversing valve is used for selectively guiding hydraulic oil output by the oil supply unit to one displacement station unit. According to the system, the multiple displacement station units can be dragged to operate only by one oil supply unit, the number of hydraulic components and pipelines can be reduced, and meanwhile the arrangement cost is low.

Description

Technical Field

[0001] The utility model belongs to the technical field of garbage processing equipment, and specifically relates to a hydraulic system of a garbage bin position changing station and a garbage compression station. Background Art

[0002] For vertical garbage compression stations, after the garbage bin is full, in order to facilitate the traction of the transfer vehicle, a positioner is needed to transform the garbage bin in a vertical position into a horizontal or inclined towing position; or after the garbage bin is unloaded, a positioner is needed to transform the garbage bin in a towing position into a vertical position.

[0003] Usually, one garbage compression berth corresponds to one positioner. However, depending on the civil engineering structure of the garbage compression station, sometimes a garbage compression station may have multiple garbage compression berths. For such garbage compression stations, multiple positioner stations need to be built to correspond to each garbage compression berth. The existing multi-positioner garbage compression stations are all equipped with one pump station and one positioner station. When arranging the hydraulic system, not only are the pipelines complicated, but the cost is also high. Utility Model Content

[0004] In view of the above-mentioned defects or shortcomings, the utility model provides a garbage bin position changing station hydraulic system and a garbage compression station, aiming to solve the technical problems of the existing multi-position changing station type garbage compression station hydraulic system with complex piping and high layout cost.

[0005] To achieve the above-mentioned purpose, the utility model provides a garbage bin shifting station hydraulic system, which includes an oil supply unit and a plurality of shifting station units. The plurality of shifting station units are hydraulically connected to the oil supply unit through a main reversing valve, and the main reversing valve is used to selectively direct the hydraulic oil output by the oil supply unit to one of the shifting station units.

[0006] In an embodiment of the utility model, several shift station units are respectively connected to the main reversing valve through their own first oil circuits. The first oil circuit is a pressure oil circuit. The main reversing valve is used to selectively direct the hydraulic oil output by the oil supply unit to one of the first oil circuits. A stop valve is provided on the first oil circuit, and the stop valve is used to control the on and off of the first oil circuit.

[0007] In an embodiment of the utility model, the main reversing valve has multiple valve positions, each valve position having an oil inlet channel for directing the hydraulic oil of the oil supply unit to one of the first oil circuits and an oil return channel for supplying return oil to at least one remaining first oil circuit.

[0008] In the embodiment of the utility model, each shift station unit is also provided with an oil return circuit independent of the main reversing valve, and the oil return circuit is used to supply oil return to the shift station unit.

[0009] In the embodiment of the utility model, a plurality of position-changing actuators are provided in the position-changing station unit, and the plurality of position-changing actuators are hydraulically connected to the corresponding first oil circuit and the oil return oil circuit through the reversing valves in the station respectively.

[0010] In an embodiment of the utility model, multiple displacement actuators include a hopper cylinder, a displacement station unit includes a derrick platform, a turning frame rotatably arranged on the derrick platform, a sliding frame slidably arranged on the turning frame, a lifting frame slidably arranged on the sliding frame, and a rotatable arm movably arranged on the lifting frame and used to clamp a garbage bin. The displacement actuators include a turning cylinder for driving the turning frame to turn over, a sliding cylinder for driving the sliding frame to move, a lifting cylinder for driving the lifting frame to move, and a rotatable arm cylinder for driving the rotatable arm to perform a clamping action.

[0011] In an embodiment of the utility model, the displacement actuator also includes a hopper cylinder arranged on the derrick platform, and the hopper cylinder is used to drive the garbage station hopper to lift.

[0012] In an embodiment of the utility model, a one-way valve is provided on the oil return line, and the one-way valve is configured to be conductive when the hydraulic oil flows toward the oil tank and to be blocked in the reverse direction.

[0013] In an embodiment of the present utility model, the oil supply unit includes a pump group and a servo motor for driving the pump group to rotate.

[0014] In order to achieve the above-mentioned purpose, the utility model also provides a garbage compression station, wherein the garbage compression station includes the hydraulic system of the garbage bin position changing station described above.

[0015] Through the above technical solution, the hydraulic system of the garbage bin shifting station provided by the embodiment of the utility model has the following beneficial effects:

[0016] Each positioner is equipped with a positioner, which contains multiple groups of action actuators. The action actuators are driven by hydraulic pressure. Through the cooperation between the action actuators, the position of the garbage bin can be changed. Through the reversing of the main reversing valve, the oil supply unit can selectively supply oil to one of the positioner units, so that only one group of oil supply units is needed to drive multiple positioner units to operate, which can not only reduce the number of hydraulic components and pipelines, but also reduce the layout cost.

[0017] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide an understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention, but do not constitute a limitation to the present invention. In the accompanying drawings:

[0019] Figure 1 It is a schematic diagram of the principle of the hydraulic system of the garbage bin shifting station in the embodiment of the utility model;

[0020] Figure 2 is a schematic diagram of a main reversing valve according to an embodiment of the utility model;

[0021] Figure 3 It is a physical schematic diagram of the hydraulic system of the garbage bin position changing station in the embodiment of the utility model;

[0022] Figure 4 It is a schematic diagram of the process of the positioner in the embodiment of the utility model when changing the position of the garbage bin.

[0023] Description of Reference Numerals

[0024] 1 Oil supply unit 11 Pump unit

[0025] 12 Servo motor 2 Positioning station unit

[0026] 21 Hopper cylinder 22 Flip cylinder

[0027] 23 Lifting cylinder 24 Boom cylinder

[0028] 25 Sliding cylinder 31 First oil circuit

[0029] 32 Oil return line 33 Stop valve

[0030] 34 Check valve 41 Main reversing valve

[0031] 42 Station reversing valve P Oil inlet end of the oil inlet channel

[0032] T Oil outlet of oil return channel 5 Trash bin DETAILED DESCRIPTION

[0033] The specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0034] The hydraulic system of the garbage bin shifting station of the present utility model is described below with reference to the accompanying drawings.

[0035] The utility model provides a hydraulic system for a garbage bin position changing station, such as Figure 1 and Figure 3 As shown, the hydraulic system of the garbage bin shifting station includes:

[0036] Oil supply unit 1; and

[0037] A plurality of shift station units 2 are hydraulically connected to the oil supply unit 1 via a main reversing valve 41 . The main reversing valve 41 is used to selectively direct the hydraulic oil output by the oil supply unit 1 to one of the shift station units 2 .

[0038] Each position changing station unit 2 is provided with a position changing machine, which contains multiple groups of action executing elements. The action executing elements are driven by hydraulic pressure. Through the cooperation between the action executing elements, the position of the garbage bin can be changed. Through the reversal of the main reversing valve 41, the oil supply unit 1 can selectively supply oil to one of the position changing station units 2, so that only one group of oil supply units 1 is needed to drive multiple position changing station units 2 to operate, which can not only reduce the number of hydraulic components and pipelines, but also reduce the layout cost.

[0039] like Figure 1 As shown, in the embodiment of the utility model, several shifting station units 2 are connected to the main reversing valve 41 through their respective first oil circuits 31. The first oil circuit 31 is a pressure oil circuit. The main reversing valve 41 is used to selectively guide the hydraulic oil output by the oil supply unit 1 to one of the first oil circuits 31. The first oil circuit 31 is provided with a stop valve 33, and the stop valve 33 is used to control the on-off of the first oil circuit 31. The first oil circuit 31 is the pressure oil circuit of the shifting station unit 2. The main reversing valve 41 can be a solenoid valve or a hydraulic control valve. Taking the solenoid valve as an example, by controlling the electromagnets at both ends of the main reversing valve 41 to be energized or de-energized, the main reversing valve 41 can switch the valve position, thereby realizing the selective guidance of the hydraulic oil output by the oil supply unit 1 to the target shifting station unit 2. The first oil circuit 31 is provided with a stop valve 33, and the stop valve 33 is used to control the on-off of the first oil circuit 31. When one or more of the multiple shifting station units 2 cannot work due to maintenance, the corresponding stop valve 33 can be closed to completely disconnect the pressure oil circuit of the shifting station unit 2 from the oil supply unit 1, so as to prevent the hydraulic oil from accidentally entering the pressure oil circuit of the faulty shifting station unit 2 when the main reversing valve 41 is switched, thereby affecting maintenance and ensuring the operational independence of each shifting station unit 2.

[0040] In the embodiment of the present utility model, the stop valve 33 may be a ball valve.

[0041] like Figure 1 and Figure 2 As shown, in the embodiment of the utility model, the main reversing valve 41 has a plurality of valve positions, each of which has an oil inlet channel for directing the hydraulic oil of the oil supply unit to one of the first oil circuits 31 and an oil return channel for returning the oil of at least one of the remaining first oil circuits 31. By providing the oil return channel, when the shifting station unit 2 fails to be repaired, the hydraulic oil in the pressure oil circuit of the failed shifting station unit 2 can be directed back to the oil tank, thereby avoiding the residual hydraulic oil in the pressure oil circuit of the failed shifting station unit 2 causing inconvenience in maintenance.

[0042] In the embodiment of the present utility model, the number of the shifting station units 2 is preferably two, three, or four. The selection of the shifting station units 2 can be achieved by the reversing of the main reversing valve 41, or by the control of multiple solenoid valves. Taking three shifting station units 2 as an example, the three shifting station units 2 can be divided into a first shifting station unit, a second shifting station unit, and a third shifting station unit in sequence. The selection of the shifting station unit 2 can be achieved by the reversing of the main reversing valve 41. For example, the main reversing valve 41 can be a three-position six-way valve with a middle valve position, a left valve position, and a right valve position. The oil inlet end P of the oil inlet channel of the main reversing valve 41 is always connected to the oil supply unit. The oil outlet end T of the return oil channel is always connected to the oil tank pipeline. By switching the valve position of the main reversing valve 41, the oil outlet end of the oil inlet channel of the main reversing valve 41 can be selectively connected to one of the first shift station unit, the second shift station unit and the third shift station unit, so that the oil inlet end of the return oil channel of the main reversing valve 41 can be selectively connected to at least the remaining one of the first shift station unit, the second shift station unit and the third shift station unit. For example, when the oil inlet channel of the main reversing valve 41 is connected to the first shift station unit, the return oil channel can be connected to the second shift station unit and / or the third shift station unit.

[0043] like Figure 1 As shown, in the embodiment of the utility model, each shifting station unit 2 is also provided with an oil return circuit 32 independent of the main reversing valve 41, and the oil return circuit 32 is used to supply oil return to the shifting station unit 2. The oil return circuit 32 is independent of the main reversing valve 41, which means that the oil return circuit 32 bypasses the main reversing valve 41 and is directly connected to the oil tank. By setting up an independent oil return circuit 32, the influence of the reversing of the main reversing valve 41 on the oil return of each shifting station unit 2 can be avoided, thereby ensuring the independence of each shifting station unit 2. And through the cooperation of the oil return channel in the main reversing valve 41 and the oil return circuit 32, when a certain shifting station unit 2 needs to be repaired, the hydraulic oil in the station can be completely drained, thereby facilitating maintenance.

[0044] like Figure 1 , Figure 3 and Figure 4As shown, in the embodiment of the utility model, a plurality of displacement actuators are provided in the positioner unit 2, and the plurality of displacement actuators are respectively hydraulically connected to the corresponding first oil circuit 31 and the return oil circuit 32 through the station reversing valve 42. Specifically, the plurality of displacement actuators as a part of the positioner include a hopper cylinder 21, a flip cylinder 22, a lifting cylinder 23, a swing arm cylinder 24 and a sliding cylinder 25. The hopper cylinder 21 is used to drive the garbage hopper to rise and fall, so as to avoid when the garbage bin enters and exits the deep pit, the flip cylinder 22 is used to drive the flip frame to flip, the lifting cylinder 23 is used to drive the lifting frame to move, and the swing arm cylinder 24 is used to drive the swing arm set on the lifting frame to open and clamp the garbage bin 5. Through the cooperation of the lifting cylinder 23 and the swing arm cylinder 24, the swing arm can accurately hook the garbage bin 5, and the sliding cylinder 25 is used to drive the sliding frame to move on the flip frame, so that the sliding frame drives the garbage bin 5 to vertically enter and exit the deep pit of the compression station. For a vertical garbage compression station, the garbage bin 5 is located in a deep pit during normal operation, and the arm of the positioner is in a state of clamping the garbage bin 5. When the garbage bin 5 needs to be transformed from a vertical posture to a lying posture for hauling, the hopper can be controlled to rise to separate from the garbage bin 5, the garbage bin door can be controlled to close, the lifting cylinder 23 can be controlled to lift the garbage bin 5 slightly upward, and then the sliding cylinder 25 can be used to push the garbage bin 5 vertically out of the deep pit. After the garbage bin 5 is moved out, the flip cylinder 22 is controlled to move so that the garbage bin 5 moves in the lying direction. After the garbage bin 5 is lying in place, the sliding cylinder and the lifting cylinder are controlled to reset horizontally and the arm is opened in turn to separate the positioner from the garbage bin, thereby completing the complete displacement of the garbage bin 5. Similarly, the action of the garbage bin 5 changing from a lying posture for hauling to a vertical posture is similar to the above, and will not be repeated here.

[0045] like Figure 1 As shown, in the embodiment of the utility model, a one-way valve 34 is provided on the oil return line 32, and the one-way valve 34 is configured to be open when the hydraulic oil flows to the oil tank and closed in the reverse direction. By providing the one-way valve 34, the hydraulic oil in the oil tank can be prevented from flowing back to other non-operating shifting station units 2 along the oil return line 32, thereby ensuring the operational independence of each shifting station unit 2 and avoiding mutual influence between the shifting station units 2.

[0046] like Figure 1 As shown, in the embodiment of the utility model, the oil supply unit 1 includes a pump group 11 and a servo motor 12 for driving the pump group 11 to rotate. By controlling the speed of the servo motor 12 through the electrical system, the hydraulic oil can be supplied on demand, reducing system heating and energy waste.

[0047] In the embodiment of the present utility model, the pump group 11 can be a double pump, a double vane pump or other forms of double hydraulic pumps.

[0048] To achieve the above purpose, the utility model also provides a garbage compression station, wherein the garbage compression station includes a plurality of garbage compression stations and the above-mentioned garbage bin position changing station hydraulic system. The position changing station units 2 correspond one to one with the garbage compression stations.

[0049] The hydraulic system of the garbage bin position changing station in the present invention is described below using the operation process of a three-compression station garbage compression station.

[0050] like Figure 1 and Figure 3 As shown, the three compression stations of the garbage compression station can be the first station, the second station and the third station respectively, and the corresponding position changing station units 2 are the first position changing station unit, the second position changing station unit and the third position changing station unit respectively. When the garbage bin of the first station is full of garbage, the controller will control the main reversing valve 41 to operate so that the hydraulic oil output by the oil supply unit 1 flows to the first position changing station unit. Similarly, when the garbage bins of the second station and the third station are full of garbage, the controller will control the main reversing valve 41 to operate so that the hydraulic oil flows to the corresponding position changing station unit 2. It should be noted that when the oil supply unit 1 is in "one to multiple" operation, in order to ensure that the pressure of the hydraulic oil output by the oil supply unit 1 is sufficient, multiple position changing stations preferably adopt a time-series operation mode, that is, only one position changing station unit 2 is allowed to work at the same time.

[0051] When one of the shifting station units 2 works normally, and the other shifting station units 2 fail and need maintenance, the hydraulic oil in the pressure oil circuit of the failed shifting station unit 2 can be firstly discharged through the main reversing valve 41, and then the corresponding stop valve 33 is closed. At this time, the failed shifting station unit 2 is isolated, which is convenient for maintenance and can ensure the normal operation of other shifting stations.

[0052] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0053] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. 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 utility model. In this specification, the schematic representations of the above terms do 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. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0055] Although the embodiments of the present invention have been described above, it is understandable that the above embodiments are exemplary and cannot be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A hydraulic system for a garbage bin position changing station, characterized in that: The hydraulic system of the garbage bin position changing station comprises: an oil supply unit (1); and A plurality of position changing station units (2) are hydraulically connected to the oil supply unit (1) via a main reversing valve (41), wherein the main reversing valve (41) is used to selectively direct the hydraulic oil output by the oil supply unit (1) to one of the position changing station units (2).

2. The hydraulic system of the garbage bin position changing station according to claim 1, characterized in that: The plurality of shift station units (2) are respectively connected to the main reversing valve (41) via their respective first oil circuits (31); the first oil circuit (31) is a pressure oil circuit; the main reversing valve (41) is used to selectively direct the hydraulic oil output by the oil supply unit (1) to one of the first oil circuits (31); a stop valve (33) is provided on the first oil circuit (31); the stop valve (33) is used to control the on and off of the first oil circuit (31).

3. The hydraulic system of the garbage bin position changing station according to claim 2, characterized in that: The main reversing valve (41) has a plurality of valve positions, each of which has an oil inlet passage for directing the hydraulic oil of the oil supply unit (1) to one of the first oil circuits (31) and an oil return passage for returning oil to at least one of the remaining first oil circuits (31).

4. The hydraulic system of the garbage bin position changing station according to claim 2, characterized in that: Each of the shift station units (2) is also provided with an oil return circuit (32) independent of the main reversing valve (41), and the oil return circuit (32) is used to supply oil return to the shift station unit (2).

5. The hydraulic system of the garbage bin position changing station according to claim 4, characterized in that: The oil return line (32) is provided with a one-way valve (34), and the one-way valve (34) is configured to be open when the hydraulic oil flows toward the oil tank and closed when the hydraulic oil flows in the opposite direction.

6. The hydraulic system of the garbage bin position changing station according to any one of claims 1 to 5, characterized in that: The shift station unit (2) is provided with a plurality of shift actuators, and the plurality of shift actuators are hydraulically connected to the main reversing valve (41) via the reversing valves (42) in the station.

7. The hydraulic system of the garbage bin position changing station according to claim 6, characterized in that: The displacement station unit (2) comprises a derrick platform, a turning frame rotatably arranged on the derrick platform, a sliding frame slidably arranged on the turning frame, a lifting frame slidably arranged on the sliding frame, and a rotating arm movably arranged on the lifting frame and used for clamping the garbage bin. The displacement actuator comprises a turning cylinder (22) for driving the turning frame to turn over, a sliding cylinder (25) for driving the sliding frame to move, a lifting cylinder (23) for driving the lifting frame to move, and a turning arm cylinder (24) for driving the turning arm to perform a clamping action.

8. The hydraulic system of the garbage bin position changing station according to claim 7, characterized in that: The displacement actuator also includes a hopper oil cylinder (21) arranged on the derrick platform, and the hopper oil cylinder is used to drive the garbage hopper to lift up.

9. The hydraulic system of the garbage bin position changing station according to any one of claims 1 to 5, characterized in that: The oil supply unit (1) comprises a pump group (11) and a servo motor (12) for driving the pump group (11) to rotate.

10. A garbage compression station, characterized in that: It comprises a hydraulic system for a garbage bin changing station according to any one of claims 1 to 9.

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