CN219509941U - Box type briquetting machine hydraulic system - Google Patents
Box type briquetting machine hydraulic system Download PDFInfo
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- CN219509941U CN219509941U CN202223607675.1U CN202223607675U CN219509941U CN 219509941 U CN219509941 U CN 219509941U CN 202223607675 U CN202223607675 U CN 202223607675U CN 219509941 U CN219509941 U CN 219509941U
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Abstract
The utility model discloses a box type briquetting machine hydraulic system, which relates to the technical field of hydraulic systems, and the hydraulic control system consists of 7 electromagnetic reversing valves, 7 one-way valves, 7 overflow valves, 4 shuttle valves and 12 two-way cartridge valves. The system has 7 main ports and 1 return port, P, A1, B1, A2, B2, A3, B3 and T, respectively. The P oil port is a pipeline led out from the outlet of the reversing valve or the power source. The ports A1, B1, A2, B2, A3 and B3 are pipelines connected to the working cylinders 1#, 2# and 3# respectively. The production and manufacturing cost is low, and the hydraulic oil pump can be fully popularized to other similar hydraulic equipment. Under the condition of increasing little cost, the problems that the working efficiency is low due to the action switching hysteresis of the oil cylinder in the hydraulic system of the traditional briquetting machine equipment, the pressing force of the oil cylinder cannot be kept and the vertical oil cylinder slides downwards are solved, and the energy conservation, efficiency improvement and safety of the equipment are ensured. The system has wide application range and strong stability and adaptability.
Description
Technical Field
The utility model relates to the technical field of hydraulic systems, in particular to a hydraulic system of a box-type briquetting machine.
Background
Along with the gradual popularization of domestic full-hydraulic transmission equipment, in particular to aspects of agricultural straw, domestic waste paper, packaging equipment of packaging shells and the like, higher requirements are put forward for energy conservation and efficiency improvement, labor intensity reduction and automation degree control of traditional briquetting machine equipment. Particularly in large pastures and urban living areas, the hydraulic transmission of box-type briquetting machine equipment requires the functions of quick switching of the actions of all working cylinders, keeping the internal pressing force of the cylinders and preventing the vertical cylinders from sliding down, a plurality of logic hydraulic element combinations are used as control modes of energy transmission, pressing force keeping and preventing the vertical cylinders from sliding down, and the logic valve hydraulic loop control is always stable in the first place, so that the problems that the cylinder actions are switched slowly and the pressing force of the cylinders and the vertical cylinders cannot be kept sliding down are solved. The control system has the advantages of large oil-passing capacity, strong pollution resistance, good sealing performance, high integration degree and the like. The hydraulic system of the traditional briquetting machine equipment has the advantages that the working efficiency is low due to the fact that the action switching hysteresis of the oil cylinder exists in the hydraulic system of the traditional briquetting machine equipment, the pressing force of the oil cylinder cannot be kept and the vertical oil cylinder slides downwards, the production efficiency required at present cannot be met, and the hydraulic system of the traditional briquetting machine equipment has great potential safety hazards and cannot meet the high-efficiency and safe use under similar working conditions, so that the technical problems that the action high-speed switching of the working oil cylinder of the traditional briquetting machine equipment, the pressing force of the oil cylinder kept and the vertical oil cylinder cannot slide downwards once become urgent needs to be overcome in the industry are solved. Therefore, the box type briquetting machine hydraulic system is used for stably controlling the functions of high-speed switching of the action of the working oil cylinder, the holding of the pressing force of the oil cylinder and no sliding of the vertical oil cylinder. The hydraulic system of the box-type briquetting machine equipment is characterized in that a plurality of logic hydraulic elements are combined to control loops, so that the high-speed switching of the action of the working oil cylinder, the holding force of the oil cylinder and the long-time non-sliding of the vertical oil cylinder are ensured. In the traditional briquetting machine equipment hydraulic system in actual use, the hydraulic control loop cannot achieve stable control of high-efficiency operation, high-speed switching of the action of a working oil cylinder, oil cylinder pressing force maintenance and no sliding function of a vertical oil cylinder, so that equipment faults frequently occur, and safety and quality hidden troubles cannot be avoided in the use process.
Disclosure of Invention
In order to solve the technical problems, the utility model provides the box type briquetting machine hydraulic system, which solves the problems that the working efficiency is low, the pressing force of the oil cylinder cannot be kept and the oil cylinder slides downwards vertically due to the action switching hysteresis of the oil cylinder in the traditional briquetting machine hydraulic system under the condition of increasing little cost, and ensures the energy conservation, efficiency improvement and safety of the equipment.
In order to achieve the above object, the present utility model provides the following solutions:
the utility model provides a hydraulic system of a box-type briquetting machine, which comprises a first oil cylinder, a second oil cylinder and a third oil cylinder;
the rodless cavity opening of the first oil cylinder is communicated with the second oil port of the first cartridge valve and the first oil port of the second cartridge valve; the first oil port of the first cartridge valve is communicated with the pressure oil port; the first oil port of the first shuttle valve is communicated with the second oil port of the first cartridge valve and the pressure oil port; the oil outlet of the first shuttle valve is communicated with the control oil port of the first cartridge valve; the second oil port of the first shuttle valve is communicated with the first oil port of the first electromagnetic directional valve; the second oil port of the first electromagnetic directional valve is communicated with the oil tank; the third oil port of the first electromagnetic directional valve is communicated with the oil outlet of the first one-way valve; the oil inlet of the first one-way valve is communicated with the first oil port of the first cartridge valve and the pressure oil port;
the second oil port of the second cartridge valve is communicated with the oil return port; the second oil port of the second cartridge valve is communicated with the first oil port of the second electromagnetic directional valve; the second oil port of the second electromagnetic reversing valve is communicated with the control oil port of the second cartridge valve, and the control oil port of the second cartridge valve is communicated with the oil inlet of the first overflow valve; an oil outlet of the first overflow valve is communicated with the oil return port;
the rod cavity opening of the first oil cylinder is communicated with the second oil port of the third cartridge valve and the first oil port of the fourth cartridge valve; the first oil port of the third cartridge valve is communicated with the pressure oil port; the second oil port of the third cartridge valve is communicated with the first oil port of the second shuttle valve and the pressure oil port; the second oil port of the second shuttle valve is communicated with the pressure oil port; the oil outlet of the second shuttle valve is communicated with the control oil port of the third cartridge valve;
a second overflow valve is arranged between the control oil port of the fourth cartridge valve and the first oil port of the first electromagnetic reversing valve, and a third overflow valve is arranged between the control oil port of the fourth cartridge valve and the oil return port;
the rod cavity opening of the second oil cylinder is communicated with the second oil port of the fifth cartridge valve and the first oil port of the sixth cartridge valve; the first oil port of the fifth cartridge valve is communicated with the pressure oil port; the control oil port of the fifth cartridge valve is communicated with the first oil port of the fourth electromagnetic directional valve; the second oil port of the fourth electromagnetic directional valve is communicated with the oil tank; a second one-way valve is arranged between the third oil port of the fourth electromagnetic directional valve and the pressure oil port;
the second oil port of the sixth cartridge valve is communicated with the oil return port; a fourth overflow valve is arranged between the control oil port of the sixth cartridge valve and the oil return port; a third one-way valve is arranged between the control oil port of the sixth cartridge valve and the fourth oil port of the fourth electromagnetic directional valve;
the rodless cavity opening of the second oil cylinder is communicated with the second oil port of the seventh cartridge valve and the first oil port of the eighth cartridge valve; the first oil port of the seventh cartridge valve is communicated with the pressure oil port; the first oil port of the third shuttle valve is communicated with the second oil port of the seventh cartridge valve; the second oil port of the third shuttle valve is communicated with the first oil port of the fifth electromagnetic directional valve; the second oil port of the fifth electromagnetic directional valve is communicated with the oil tank; the third oil port of the fifth electromagnetic directional valve is communicated with the pressure oil port; an oil outlet of the third shuttle valve is communicated with a control oil port of the seventh cartridge valve;
the second oil port of the eighth cartridge valve is communicated with the oil return port; a fifth overflow valve is arranged between the control oil port of the eighth cartridge valve and the oil return port; the control oil port of the eighth cartridge valve is communicated with the control oil port of the fifth cartridge valve;
the rod cavity opening of the third oil cylinder is communicated with the second oil opening of the ninth cartridge valve and the first oil opening of the tenth cartridge valve; the first oil port of the ninth cartridge valve is communicated with the pressure oil port; the control oil port of the ninth cartridge valve is communicated with the first oil port of the seventh electromagnetic directional valve; the second oil port of the seventh electromagnetic directional valve is communicated with the oil tank; a fifth one-way valve is arranged between the third oil port of the seventh electromagnetic directional valve and the pressure oil port;
the second oil port of the tenth cartridge valve is communicated with the oil return port; a sixth overflow valve is arranged between the control oil port of the tenth cartridge valve and the oil return port; a sixth one-way valve is arranged between the control oil port of the tenth cartridge valve and the fourth oil port of the seventh electromagnetic directional valve;
the rodless cavity opening of the second oil cylinder is communicated with the second oil port of the eleventh cartridge valve and the first oil port of the twelfth cartridge valve; the first oil port of the eleventh cartridge valve is communicated with the pressure oil port; the first oil port of the fourth shuttle valve is communicated with the second oil port of the eleventh cartridge valve; the second oil port of the fourth shuttle valve is communicated with the first oil port of the seventh electromagnetic directional valve; the second oil port of the seventh electromagnetic directional valve is communicated with the oil tank; the third oil port of the seventh electromagnetic directional valve is communicated with the pressure oil port; an oil outlet of the fourth shuttle valve is communicated with a control oil port of the eleventh cartridge valve;
the second oil port of the twelfth cartridge valve is communicated with the oil return port; a seventh overflow valve is arranged between the control oil port of the twelfth cartridge valve and the oil return port; and the control oil port of the twelfth cartridge valve is communicated with the control oil port of the ninth cartridge valve.
Optionally, the first oil cylinder is a vertical oil cylinder.
Optionally, the second oil cylinder and the third oil cylinder are horizontal oil cylinders.
Compared with the prior art, the utility model has the following technical effects:
the utility model has simple structure and obvious effects of saving energy, enhancing efficiency and improving control performance of the hydraulic system. The hydraulic control loop of the 1# oil cylinder, the 2# oil cylinder and the 3# oil cylinder are used for realizing the energy-saving and efficiency-increasing operation of the box type briquetting machine, the characteristics of high oil passing capability, quick response, zero leakage and high integration degree of the two-way cartridge valve are adopted, the electromagnetic reversing valve is matched with the action control of each oil cylinder, the continuous actions of the 1# oil cylinder, the 2# oil cylinder and the 3# oil cylinder are controlled according to the logic sequence, and the high-speed switching of the actions of the working oil cylinders, the retention of the pressing force of the oil cylinders and the long-time non-sliding of the vertical oil cylinders are ensured. The device has the advantages of simple structure, clear principle, high reliability and simple debugging. When faults occur, the problems are easy to check, and the problems are convenient to solve. Meanwhile, the utility model has lower production and manufacturing cost and can be fully popularized to other similar hydraulic equipment. Under the condition of increasing little cost, the problems that the working efficiency is low due to the action switching hysteresis of the oil cylinder in the hydraulic system of the traditional briquetting machine equipment, the pressing force of the oil cylinder cannot be kept and the vertical oil cylinder slides downwards are solved, and the energy conservation, efficiency improvement and safety of the equipment are ensured. The system has wide application range and strong stability and adaptability.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the hydraulic system of the box-type briquetting machine of the present utility model.
Reference numerals illustrate: 1. a first one-way valve; 2. a first electromagnetic directional valve; 3. a first shuttle valve; 4. a first cartridge valve; 5. a second cartridge valve; 6. a first overflow valve; 7. a second electromagnetic directional valve; 8. a second shuttle valve; 9. a third electromagnetic directional valve; 10. a third cartridge valve; 11. a fourth cartridge valve; 12. a second overflow valve; 13. a third overflow valve; 14. a fourth electromagnetic directional valve; 15. a second one-way valve; 16. a fifth cartridge valve; 17. a sixth cartridge valve; 18. a third one-way valve; 19. a fourth overflow valve; 20. a fifth electromagnetic directional valve; 21. a third shuttle valve; 22. a seventh cartridge valve; 23. an eighth cartridge valve; 24. a fourth one-way valve; 25. a fifth overflow valve; 26. a sixth electromagnetic directional valve; 27. a fifth check valve; 28. a ninth cartridge valve; 29. a tenth cartridge valve; 30. a sixth one-way valve; 31. a sixth overflow valve; 32. a seventh electromagnetic directional valve; 33. a fourth shuttle valve; 34. an eleventh cartridge valve; 35. a twelfth cartridge valve; 36. a seventh one-way valve; 37. and a seventh relief valve.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1, the embodiment provides a hydraulic system of a box-type briquetting machine, which comprises a first oil cylinder, a second oil cylinder and a third oil cylinder; the first oil cylinder is a vertical oil cylinder; the second oil cylinder and the third oil cylinder are horizontal oil cylinders.
The rodless cavity opening of the first oil cylinder is communicated with the second oil port of the first cartridge valve 4 and the first oil port of the second cartridge valve 5; the first oil port of the first cartridge valve 4 is communicated with the pressure oil port; the first oil port of the first shuttle valve 3 is communicated with the second oil port of the first cartridge valve 4 and the pressure oil port; the oil outlet of the first shuttle valve 3 is communicated with the control oil port of the first cartridge valve 4; the second oil port of the first shuttle valve 3 is communicated with the first oil port of the first electromagnetic directional valve 2; the second oil port of the first electromagnetic directional valve 2 is communicated with an oil tank; the third oil port of the first electromagnetic directional valve 2 is communicated with the oil outlet of the first one-way valve 1; the oil inlet of the first one-way valve 1 is communicated with a first oil port and a pressure oil port of the first cartridge valve 4;
the second oil port of the second cartridge valve 5 is communicated with the oil return port; the second oil port of the second cartridge valve 5 is communicated with the first oil port of the second electromagnetic directional valve 7; the second oil port of the second electromagnetic directional valve 7 is communicated with the control oil port of the second cartridge valve 5, and the control oil port of the second cartridge valve 5 is communicated with the oil inlet of the first overflow valve 6; the oil outlet of the first overflow valve 6 is communicated with an oil return port;
the rod cavity port of the first oil cylinder is communicated with the second oil port of the third cartridge valve 10 and the first oil port of the fourth cartridge valve 11; the first oil port of the third cartridge valve 10 is communicated with the pressure oil port; the second oil port of the third cartridge valve 10 is communicated with the first oil port and the pressure oil port of the second shuttle valve 8; the second oil port of the second shuttle valve 8 is communicated with the pressure oil port; the oil outlet of the second shuttle valve 8 is communicated with the control oil port of the third cartridge valve 10;
a second overflow valve 12 is arranged between the control oil port of the fourth cartridge valve 11 and the first oil port of the first electromagnetic directional valve 2, and a third overflow valve 13 is arranged between the control oil port of the fourth cartridge valve 11 and the oil return port;
the rod cavity port of the second oil cylinder is communicated with the second oil port of the fifth cartridge valve 16 and the first oil port of the sixth cartridge valve 17; the first oil port of the fifth cartridge valve 16 is communicated with the pressure oil port; the control oil port of the fifth cartridge valve 16 is communicated with the first oil port of the fourth electromagnetic directional valve 14; the second oil port of the fourth electromagnetic directional valve 14 is communicated with an oil tank; a second one-way valve 15 is arranged between the third oil port and the pressure oil port of the fourth electromagnetic directional valve 14;
the second oil port of the sixth cartridge valve 17 is communicated with an oil return port; a fourth overflow valve 19 is arranged between the control oil port and the oil return port of the sixth cartridge valve 17; a third one-way valve 18 is arranged between the control oil port of the sixth cartridge valve 17 and the fourth oil port of the fourth electromagnetic directional valve 14;
the rodless cavity port of the second oil cylinder is communicated with the second oil port of the seventh cartridge valve 22 and the first oil port of the eighth cartridge valve 23; the first oil port of the seventh cartridge valve 22 is communicated with the pressure oil port; the first oil port of the third shuttle valve 21 is communicated with the second oil port of the seventh cartridge valve 22; the second oil port of the third shuttle valve 21 is communicated with the first oil port of the fifth electromagnetic directional valve 20; the second oil port of the fifth electromagnetic directional valve 20 is communicated with an oil tank; the third oil port of the fifth electromagnetic directional valve 20 is communicated with the pressure oil port; the oil outlet of the third shuttle valve 21 is communicated with the control oil port of the seventh cartridge valve 22;
the second oil port of the eighth cartridge valve 23 is communicated with an oil return port; a fifth overflow valve 25 is arranged between the control oil port and the oil return port of the eighth cartridge valve 23; the control oil port of the eighth cartridge valve 23 is communicated with the control oil port of the fifth cartridge valve 16;
the rod cavity port of the third oil cylinder is communicated with the second oil port of the ninth cartridge valve 28 and the first oil port of the tenth cartridge valve 29; the first oil port of the ninth cartridge valve 28 is communicated with the pressure oil port; the control oil port of the ninth cartridge valve 28 is communicated with the first oil port of the seventh electromagnetic directional valve 32; the second oil port of the seventh electromagnetic directional valve 32 is communicated with the oil tank; a fifth one-way valve 27 is arranged between the third oil port and the pressure oil port of the seventh electromagnetic directional valve 32;
the second oil port of the tenth cartridge valve 29 is communicated with an oil return port; a sixth overflow valve 31 is arranged between the control oil port and the oil return port of the tenth cartridge valve 29; a sixth one-way valve 30 is arranged between the control oil port of the tenth cartridge valve 29 and the fourth oil port of the seventh electromagnetic directional valve 32;
the rodless cavity port of the second oil cylinder is communicated with the second oil port of the eleventh cartridge valve 34 and the first oil port of the twelfth cartridge valve 35; the first oil port of the eleventh cartridge valve 34 is communicated with the pressure oil port; the first oil port of the fourth shuttle valve 33 is communicated with the second oil port of the eleventh cartridge valve 34; the second oil port of the fourth shuttle valve 33 is communicated with the first oil port of the seventh electromagnetic directional valve 32; the second oil port of the seventh electromagnetic directional valve 32 is communicated with the oil tank; the third oil port of the seventh electromagnetic directional valve 32 is communicated with the pressure oil port; the oil outlet of the fourth shuttle valve 33 is communicated with the control oil port of the eleventh cartridge valve 34;
the second oil port of the twelfth cartridge valve 35 is communicated with the oil return port; a seventh overflow valve 37 is arranged between the control oil port and the oil return port of the twelfth cartridge valve 35; the control port of the twelfth cartridge valve 35 communicates with the control port of the ninth cartridge valve 28.
According to the hydraulic system of the box-type briquetting machine, the hydraulic control loop of the 1# oil cylinder, the 2# oil cylinder and the 3# oil cylinder are used for realizing energy-saving and efficiency-increasing operation of the box-type briquetting machine, the characteristics of high oil passing capacity, quick response, zero leakage and high integration degree of the two-way cartridge valve are adopted, the electromagnetic reversing valve is matched with the action control of each oil cylinder, the continuous actions of the 1# oil cylinder, the 2# oil cylinder and the 3# oil cylinder are controlled according to the logic sequence, and the high-speed switching of the actions of the working oil cylinders, the retention of the pressing force of the oil cylinders and the long-time non-sliding of the vertical oil cylinders are ensured. The device has the advantages of simple structure, clear principle, high reliability and simple debugging. When faults occur, the problems are easy to check, and the problems are convenient to solve. Meanwhile, the utility model has lower production and manufacturing cost and can be fully popularized to other similar hydraulic equipment. Under the condition of increasing little cost, the problems that the working efficiency is low due to the action switching hysteresis of the oil cylinder in the hydraulic system of the traditional briquetting machine equipment, the pressing force of the oil cylinder cannot be kept and the vertical oil cylinder slides downwards are solved, and the energy conservation, efficiency improvement and safety of the equipment are ensured. The hydraulic control system consists of 7 electromagnetic directional valves, 7 one-way valves, 7 overflow valves, 4 shuttle valves and 12 two-way cartridge valves. The system has 7 main ports and 1 return port, P, A1, B1, A2, B2, A3, B3 and T, respectively. The P oil port is a pipeline led out from the outlet of the reversing valve or the power source. The ports A1, B1, A2, B2, A3 and B3 are pipelines connected to the working cylinders 1#, 2# and 3# respectively. The T port is a line to the tank. The control loop of the hydraulic system is that a P oil port is connected to a plurality of oil inlet two-way cartridge valves A, and the two-way cartridge valves A and B realize the opening and closing functions through the action of a main valve core. The opening and closing of the main valve core of the oil inlet two-way cartridge valve is determined by whether pressure oil exists in the cavity C of the control cavity of the two-way cartridge valve. The oil inlet two-way cartridge valve B ports are respectively connected with the working oil ports A1, B1, A2, B2, A3 and B3 of the oil cylinders and the oil discharge two-way cartridge valve A ports. The opening and closing of the main valve core of the oil discharge two-way cartridge valve is determined by whether pressure oil exists in a control cavity C of the two-way cartridge valve. In addition, the port B of the two-way cartridge valve for discharging oil is connected with the port T.
The working principle is as follows:
the pressure oil port P is communicated with a first oil port of the first cartridge valve 4, when the first electromagnetic directional valve 2 and the third electromagnetic directional valve 9 are electrified to work, the main valve chambers of the first cartridge valve 4 and the third cartridge valve 10 have no control pressure, and the two main valve cores are opened. The second cartridge valve 5 and the fourth cartridge valve 11 have a control pressure in the main valve spool chamber and the two main valve spools remain closed. The oil of the pressure oil port P enters the second oil port through the first oil port of the first cartridge valve 4 and is communicated with the rodless cavity port of the first oil cylinder. The oil in the rod cavity of the first oil cylinder enters the first oil port through the second oil port of the third cartridge valve 10, is communicated with the pressure oil port P, and then enters the first oil port of the first cartridge valve 4 for the second time and enters the second oil port. The first oil cylinder generates the extending action of the oil cylinder rod, thus forming the oil way differential function and greatly improving the running speed of the idle stroke of the first oil cylinder. When the first oil cylinder stretches out to reach the set position, the third electromagnetic directional valve 9 is powered off, at the moment, the oil at the rod cavity port of the first oil cylinder is discharged to the second oil port through the back pressure of the first oil port of the fourth cartridge valve 11, and is communicated with the oil return port T to return to the oil tank, and the back pressure is set by the second overflow valve 12 and then is communicated with the first oil port of the first electromagnetic directional valve 2 to return to the oil tank, so that the action is the slow stretching action of the first oil cylinder. When the pressure of the rodless cavity opening of the first oil cylinder reaches a set value, the first electromagnetic directional valve 2 is powered off, and the extending action of the first oil cylinder is stopped. The oil of the rodless cavity port of the first oil cylinder is communicated with the first shuttle valve 3 to control the control pressure of the main valve core cavity of the first cartridge valve 4, and the main valve is reliably closed. The oil at the rodless cavity opening of the first oil cylinder is communicated with the first oil port of the second cartridge valve 5, the control pressure is arranged in the main valve core cavity, the set pressure of the first overflow valve 6 exceeds the pressure value of the rodless cavity opening of the first oil cylinder, overflow is not generated, the second electromagnetic directional valve 7 is at the power-off position, and the valve core is in a closed state. At the moment, the rodless cavity opening of the first oil cylinder realizes the compaction and holding functions. The pressure oil port P is communicated with a first oil port of the third cartridge valve 10, when the third electromagnetic directional valve 9 and the second electromagnetic directional valve 7 are electrified to work, the main valve chambers of the third cartridge valve 10 and the second cartridge valve 5 have no control pressure, and the two main valve cores are opened. The primary spool chambers of the first cartridge valve 4 and the fourth cartridge valve 11 have control pressures and both spools remain closed. The oil of the pressure oil port P enters the second oil port through the first oil port of the third cartridge valve 10, is communicated with the rod cavity port of the first oil cylinder, and the oil of the rodless cavity port of the first oil cylinder enters the second oil port through the first oil port of the second cartridge valve 5, and is communicated with the oil return port T for returning the oil tank. The maximum pressure of the rod cavity opening of the first oil cylinder is determined by the setting value of the third overflow valve 13. This action is a first cylinder quick retract action. After the first oil cylinder is retracted and stopped, a rod cavity port is communicated with a second oil port of the third cartridge valve 10 and a first oil port of the fourth cartridge valve 11, and pressure oil at the rod cavity port communicated with the second shuttle valve 8 passes through the third electromagnetic directional valve 9 to control a main valve core cavity of a main valve core of the third cartridge valve 10 so as to be reliably closed. The second overflow valve 12 is communicated with the first electromagnetic directional valve 2 and is closed through the first one-way valve 1, so that the fourth cartridge valve 11 is reliably closed, the function of no leakage of oil at the rod cavity port of the first oil cylinder is realized, and the vertical oil cylinder is ensured not to slide downwards.
The pressure oil port P is communicated with the first oil port of the seventh cartridge valve 22, when the fifth electromagnetic directional valve 20 is electrified to work, the main valve chambers of the seventh cartridge valve 22 and the sixth cartridge valve 17 have no control pressure, and the two main valve chambers are opened. A fifth cartridge valve 16 and an eighth cartridge valve 23, the main spool chambers having control pressure, the two main spools being held closed. The oil of the pressure oil port P enters the second oil port through the first oil port of the seventh cartridge valve 22 and is communicated with the rodless cavity port of the second oil cylinder. The second oil cylinder is provided with a rod cavity port which is communicated with a first oil port of the sixth cartridge valve 17, enters a second oil port and is communicated with an oil return port T oil return tank. The maximum pressure of the rodless cavity port of the second oil cylinder is determined by the setting value of the fifth overflow valve 25. The second oil cylinder produces the rapid extending action of the oil cylinder rod. The pressure oil port P is communicated with the first oil port of the fifth cartridge valve 16, when the fourth electromagnetic directional valve 14 is electrified to work, the main valve chambers of the fifth cartridge valve 16 and the eighth cartridge valve 23 have no control pressure, and the two main valve chambers are opened. A seventh cartridge valve 22 and a sixth cartridge valve 17, the main spool chambers having control pressure, the two main spools being held closed. The oil of the pressure oil port P enters the second oil port through the first oil port of the fifth cartridge valve 16 and is communicated with a rod cavity port of the second oil cylinder. The rodless cavity port of the second oil cylinder is communicated with the first oil port of the eighth cartridge valve 23, enters the second oil port and is communicated with the oil return port T for returning oil. The maximum pressure of the rod cavity opening of the second oil cylinder is determined by the set value of the fourth overflow valve 19. The second cylinder produces a quick retraction of the cylinder rod.
The pressure oil port P is connected to the first oil port of the eleventh cartridge valve 34, when the seventh electromagnetic directional valve 32 is powered on, the main valve chambers of the eleventh cartridge valve 34 and the tenth cartridge valve 29 have no control pressure, and the two main valve chambers are opened. A ninth cartridge valve 28 and a twelfth cartridge valve 35, the main spool chambers having control pressure, the two main spools being held closed. The oil of the pressure oil port P enters the second oil port through the first oil port of the eleventh cartridge valve 34 and is communicated with the rodless cavity port of the third oil cylinder. The rod cavity port of the third oil cylinder is communicated with the first oil port of the tenth cartridge valve 29, the second oil port is communicated with the oil return port T, and the oil return tank is communicated with the oil return port T. The maximum pressure of the rodless cavity port of the third oil cylinder is determined by the setting value of the seventh relief valve 37. The third oil cylinder produces the rapid extending action of the oil cylinder rod. The pressure oil port P is connected to the first oil port of the ninth cartridge valve 28, when the sixth electromagnetic directional valve 26 is powered on, the main valve chambers of the ninth cartridge valve 28 and the twelfth cartridge valve 35 have no control pressure, and the two main valve chambers are opened. Eleventh cartridge valve 34 and tenth cartridge valve 29, the main spool chambers have control pressure and both main spools remain closed. The oil of the pressure oil port P enters the second oil port through the first oil port of the ninth cartridge valve 28 and is communicated with the rod cavity port of the third oil cylinder. The rodless cavity port of the third oil cylinder is communicated with the first oil port of the twelfth cartridge valve 35, enters the second oil port, and is communicated with the oil return port T for returning oil. The maximum pressure of the rod cavity port of the third oil cylinder is determined by the setting value of the sixth relief valve 31. The third cylinder produces a quick retraction of the cylinder rod.
The hydraulic control loop enables the working oil cylinder to perform high-speed switching, the pressing force of the oil cylinder to be kept and the vertical oil cylinder to stably control the sliding-free function, and the hydraulic system of the box-type briquetting machine completely meets the technological requirements of packing equipment of agricultural straws, domestic waste paper, packaging shells and the like.
It should be noted that it will be apparent to those skilled in the art that the present utility model is not limited to the details of the above-described exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
The principles and embodiments of the present utility model have been described in this specification with reference to specific examples, the description of which is only for the purpose of aiding in understanding the method of the present utility model and its core ideas; also, it is within the scope of the present utility model to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the utility model.
Claims (3)
1. The hydraulic system of the box-type briquetting machine is characterized by comprising a first oil cylinder, a second oil cylinder and a third oil cylinder;
the rodless cavity opening of the first oil cylinder is communicated with the second oil port of the first cartridge valve and the first oil port of the second cartridge valve; the first oil port of the first cartridge valve is communicated with the pressure oil port; the first oil port of the first shuttle valve is communicated with the second oil port of the first cartridge valve and the pressure oil port; the oil outlet of the first shuttle valve is communicated with the control oil port of the first cartridge valve; the second oil port of the first shuttle valve is communicated with the first oil port of the first electromagnetic directional valve; the second oil port of the first electromagnetic directional valve is communicated with the oil tank; the third oil port of the first electromagnetic directional valve is communicated with the oil outlet of the first one-way valve; the oil inlet of the first one-way valve is communicated with the first oil port of the first cartridge valve and the pressure oil port;
the second oil port of the second cartridge valve is communicated with the oil return port; the second oil port of the second cartridge valve is communicated with the first oil port of the second electromagnetic directional valve; the second oil port of the second electromagnetic reversing valve is communicated with the control oil port of the second cartridge valve, and the control oil port of the second cartridge valve is communicated with the oil inlet of the first overflow valve; an oil outlet of the first overflow valve is communicated with the oil return port;
the rod cavity opening of the first oil cylinder is communicated with the second oil port of the third cartridge valve and the first oil port of the fourth cartridge valve; the first oil port of the third cartridge valve is communicated with the pressure oil port; the second oil port of the third cartridge valve is communicated with the first oil port of the second shuttle valve and the pressure oil port; the second oil port of the second shuttle valve is communicated with the pressure oil port; the oil outlet of the second shuttle valve is communicated with the control oil port of the third cartridge valve;
a second overflow valve is arranged between the control oil port of the fourth cartridge valve and the first oil port of the first electromagnetic reversing valve, and a third overflow valve is arranged between the control oil port of the fourth cartridge valve and the oil return port;
the rod cavity opening of the second oil cylinder is communicated with the second oil port of the fifth cartridge valve and the first oil port of the sixth cartridge valve; the first oil port of the fifth cartridge valve is communicated with the pressure oil port; the control oil port of the fifth cartridge valve is communicated with the first oil port of the fourth electromagnetic directional valve; the second oil port of the fourth electromagnetic directional valve is communicated with the oil tank; a second one-way valve is arranged between the third oil port of the fourth electromagnetic directional valve and the pressure oil port;
the second oil port of the sixth cartridge valve is communicated with the oil return port; a fourth overflow valve is arranged between the control oil port of the sixth cartridge valve and the oil return port; a third one-way valve is arranged between the control oil port of the sixth cartridge valve and the fourth oil port of the fourth electromagnetic directional valve;
the rodless cavity opening of the second oil cylinder is communicated with the second oil port of the seventh cartridge valve and the first oil port of the eighth cartridge valve; the first oil port of the seventh cartridge valve is communicated with the pressure oil port; the first oil port of the third shuttle valve is communicated with the second oil port of the seventh cartridge valve; the second oil port of the third shuttle valve is communicated with the first oil port of the fifth electromagnetic directional valve; the second oil port of the fifth electromagnetic directional valve is communicated with the oil tank; the third oil port of the fifth electromagnetic directional valve is communicated with the pressure oil port; an oil outlet of the third shuttle valve is communicated with a control oil port of the seventh cartridge valve;
the second oil port of the eighth cartridge valve is communicated with the oil return port; a fifth overflow valve is arranged between the control oil port of the eighth cartridge valve and the oil return port; the control oil port of the eighth cartridge valve is communicated with the control oil port of the fifth cartridge valve;
the rod cavity opening of the third oil cylinder is communicated with the second oil opening of the ninth cartridge valve and the first oil opening of the tenth cartridge valve; the first oil port of the ninth cartridge valve is communicated with the pressure oil port; the control oil port of the ninth cartridge valve is communicated with the first oil port of the seventh electromagnetic directional valve; the second oil port of the seventh electromagnetic directional valve is communicated with the oil tank; a fifth one-way valve is arranged between the third oil port of the seventh electromagnetic directional valve and the pressure oil port;
the second oil port of the tenth cartridge valve is communicated with the oil return port; a sixth overflow valve is arranged between the control oil port of the tenth cartridge valve and the oil return port; a sixth one-way valve is arranged between the control oil port of the tenth cartridge valve and the fourth oil port of the seventh electromagnetic directional valve;
the rodless cavity opening of the second oil cylinder is communicated with the second oil port of the eleventh cartridge valve and the first oil port of the twelfth cartridge valve; the first oil port of the eleventh cartridge valve is communicated with the pressure oil port; the first oil port of the fourth shuttle valve is communicated with the second oil port of the eleventh cartridge valve; the second oil port of the fourth shuttle valve is communicated with the first oil port of the seventh electromagnetic directional valve; the second oil port of the seventh electromagnetic directional valve is communicated with the oil tank; the third oil port of the seventh electromagnetic directional valve is communicated with the pressure oil port; an oil outlet of the fourth shuttle valve is communicated with a control oil port of the eleventh cartridge valve;
the second oil port of the twelfth cartridge valve is communicated with the oil return port; a seventh overflow valve is arranged between the control oil port of the twelfth cartridge valve and the oil return port; and the control oil port of the twelfth cartridge valve is communicated with the control oil port of the ninth cartridge valve.
2. The tank briquetting machine hydraulic system of claim 1, wherein the first oil cylinder is a vertical oil cylinder.
3. The tank briquetting machine hydraulic system of claim 1, wherein the second and third cylinders are horizontal cylinders.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223607675.1U CN219509941U (en) | 2022-12-30 | 2022-12-30 | Box type briquetting machine hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223607675.1U CN219509941U (en) | 2022-12-30 | 2022-12-30 | Box type briquetting machine hydraulic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219509941U true CN219509941U (en) | 2023-08-11 |
Family
ID=87548416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223607675.1U Active CN219509941U (en) | 2022-12-30 | 2022-12-30 | Box type briquetting machine hydraulic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219509941U (en) |
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2022
- 2022-12-30 CN CN202223607675.1U patent/CN219509941U/en active Active
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