A hydraulic draw plate control system

Abstract

The application provides a hydraulic plate drawing control system and relates to the field of hydraulic systems.The hydraulic plate drawing control system comprises a first actuating mechanism and a second actuating mechanism which are used in cooperation with each other, the first actuating mechanism comprises an oil tank, a hydraulic actuating device arranged on the oil tank and a motor, the hydraulic actuating device is connected with the motor, the second actuating mechanism comprises an oil path block and an overflow valve arranged on the oil path block, the overflow valve is connected with the hydraulic actuating device, the hydraulic plate drawing control system further comprises a controller, and the controller is connected with the first actuating mechanism and the second actuating mechanism.The hydraulic plate drawing control system can make the hydraulic system obtain the desired back pressure, reduce energy consumption and lower system heat generation.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of hydraulic systems, in particular to a hydraulic plate drawing control system. BACKGROUND

[0002] When a hydraulic actuator (hydraulic cylinder, hydraulic motor) pushes a load to move at a certain pressure, the intentional or unintentional pressure (actually increases the load force to be overcome) on the oil return side (cylinder, motor oil return chamber) is called back pressure.

[0003] Sometimes the back pressure is caused by the long pipeline of the system, the filter, cooler and other devices on the oil return pipeline, at this time it may be necessary to take measures to reduce the back pressure, to reduce energy consumption and reduce system heating. SUMMARY

[0004] The purpose of the present application is to provide a hydraulic plate drawing control system, which can make the hydraulic system obtain the desired back pressure, to reduce energy consumption and reduce system heating.

[0005] Embodiments of the present application are implemented as follows:

[0006] The hydraulic plate drawing control system provided by the embodiments of the present application comprises a first actuator and a second actuator which are used together, the first actuator comprises an oil tank, a hydraulic actuator and a motor which are arranged in the oil tank, and the hydraulic actuator is connected with the motor;

[0007] The second actuator comprises an oil passage block and an overflow valve which are arranged in the oil passage block, and the overflow valve is connected with the hydraulic actuator;

[0008] Further comprising a controller connected with the first actuator and the second actuator.

[0009] In some embodiments of the present application, the hydraulic actuator comprises a cylinder and a pneumatic cylinder which are connected with each other, the cylinder is connected with the motor through a vane pump, and the cylinder is connected with an oil pipe.

[0010] In some embodiments of the present application, the cylinder is connected with an oil return pipeline, the oil return pipeline is connected with the overflow valve, and the oil return pipeline is provided with an oil return filter.

[0011] In some embodiments of the present application, the oil passage block has a plurality of pressure measuring joints.

[0012] In some embodiments of the present application, the oil passage block is provided with an electromagnetic reversing valve, the electromagnetic reversing valve is connected with the overflow valve, and the number of the electromagnetic reversing valves is equal to the number of the overflow valves.

[0013] In some embodiments of the present application, the oil tank is provided with a wind cooler, which is connected with the motor and located between the motor and the hydraulic actuator.

[0014] In some embodiments of the present application, the oil tank is provided with a liquid level gauge.

[0015] In some embodiments of the present application, the second actuator further comprises a trolley, and the oil block is located in the trolley.

[0016] In some embodiments of the present application, the trolley is provided with a pressure gauge.

[0017] Compared with the prior art, the embodiments of the present application have at least the following advantages or beneficial effects:

[0018] The embodiments of the present application provide a hydraulic plate drawing control system, which comprises a first actuator and a second actuator used in cooperation with each other, the first actuator comprises an oil tank and a hydraulic actuator and a motor arranged in the oil tank, the hydraulic actuator is connected with the motor; the second actuator comprises an oil block and an overflow valve arranged in the oil block, the overflow valve is connected with the hydraulic actuator; and the system further comprises a controller connected with the first actuator and the second actuator.

[0019] By arranging the overflow valve in the oil return part of the hydraulic actuator, a certain pressure difference can be generated when the liquid flows through, so as to obtain the desired back pressure. When a certain back pressure is set, although part of the oil source energy is consumed, the load movement can be stabilized. The controller sets eight channels, any one of which can be used as the action of the hydraulic actuator. After the channel is selected, the corresponding number is set, and the hydraulic actuator acts when it reaches the set number. In addition, the total action time of the hydraulic actuator is set by the controller. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0021] Figure 1 It is a schematic diagram of the first actuator of the embodiments of the present application;

[0022] Figure 2 It is a schematic diagram of the oil tank of the embodiments of the present application;

[0023] Figure 3 It is a schematic diagram of the second actuator of the embodiments of the present application;

[0024] Figure 4 Figure 1 is a schematic diagram of an oil circuit block and an overflow valve according to an embodiment of the present application.

[0025] Figure 5 Figure 2 is a schematic diagram of an electromagnetic directional valve according to an embodiment of the present application.

[0026] Figure 1 is a schematic diagram of an oil circuit block and an overflow valve according to an embodiment of the present application. DETAILED DESCRIPTION

[0027] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application but not all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed application, but only represents selected embodiments of the application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work are within the scope of protection of the present application.

[0029] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0030] In the description of the embodiments of the present application, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product of the present application is used, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, if the terms "first", "second", "third" and the like appear, they are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0031] In addition, if the terms "horizontal", "vertical", "overhanging" and the like appear, it does not mean that the components must be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that it is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0032] In the description of the embodiments of the application, if the term "a plurality of" appears, it represents at least 2.

[0033] In the description of the embodiments of the application, it should be further pointed out that, unless otherwise explicitly specified and limited, if the terms "arrangement", "installation", "connection", "connection" appear, they should be understood in a broad sense. For example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0034] Embodiments

[0035] Please refer to Figures 1-5 , which shows an embodiment of the application.

[0036] The embodiment of the application provides a hydraulic plate drawing control system, which comprises a first actuator and a second actuator used in cooperation with each other, the first actuator comprises an oil tank 7 and a hydraulic actuator arranged on the oil tank 7, and a motor 1, the hydraulic actuator is connected with the motor 1;

[0037] The second actuator comprises an oil passage block 11 and an overflow valve 14 arranged on the oil passage block 11, the overflow valve 14 is connected with the hydraulic actuator;

[0038] Further comprising a controller, the controller is connected with the first actuator and the second actuator.

[0039] The application sets the overflow valve 14 in the oil return part of the hydraulic actuator, and a certain pressure difference can be generated when the liquid flows through, so as to obtain the expected back pressure. When a certain back pressure is set, although part of the oil source energy is consumed, the advantage is that the load movement is stable.

[0040] The application sets eight channels by the controller, any one of the channels can be used as the action of the hydraulic actuator, the corresponding number is set after the channel is selected, and the action of the hydraulic actuator is performed after the hydraulic actuator reaches the set number. In addition, the total action time of the hydraulic actuator is set by the controller.

[0041] In some embodiments of the application, the above-mentioned hydraulic actuator comprises a cylinder 4 and a gas cylinder connected with each other, the cylinder 4 is connected with the motor 1 through the vane pump 2, and the cylinder 4 is connected with the oil pipe 5.

[0042] The vane pump 2 is a pump in which the vane in the rotor groove contacts with the pump housing (the stator ring) to press the sucked liquid from the oil inlet side to the oil outlet side. When the rotor of the vane pump 2 rotates, the vane is tightly attached to the inner surface of the stator under the action of centrifugal force and pressure oil. Thus, the working volume formed by the two vanes, the rotor and the inner surface of the stator is first increased to suck oil and then decreased to discharge oil, and one cycle of oil sucking and discharging is completed when the vane rotates one round.

[0043] The working principle of the controller and the first executing mechanism is as follows:

[0044] Channel selection: any one of CH1-CH8 is set as the action of the electromagnetic valve of the oil cylinder 4;

[0045] Number setting: after the channel selection, the corresponding number is set, and the electromagnetic valve of the oil cylinder 4 starts to act when reaching the set number;

[0046] Action principle: channel selection ok→set number→count number reaches→the electromagnetic valve of the oil cylinder 4 drops to the lower limit→the cylinder advances to the front limit→the cylinder retreats to the rear limit→the electromagnetic valve of the oil cylinder 4 rises to the upper limit→the cycle continues;

[0047] In addition, the first executing mechanism can also be in a manual mode:

[0048] The electromagnetic valve of the oil cylinder 4 is jogged to advance or retreat, and the corresponding upper limit and lower limit indicator lights are on. The cylinder electromagnetic valve can only act alternately (two-position type), and the corresponding front limit and rear limit indicator lights are on and off.

[0049] When the middle limit and the upper limit of the electromagnetic valve of the oil cylinder 4 are on at the same time, the EMG signal is on, and the machine is stopped.

[0050] Set time:

[0051] The action time of the oil cylinder 4 is the total time of the electromagnetic valve of the oil cylinder 4 for one action back and forth, and an alarm is given if the set time is exceeded;

[0052] The action time of the cylinder is the total time of the cylinder electromagnetic valve for one action back and forth, and an alarm is given if the set time is exceeded;

[0053] The drop time of the oil cylinder 4 is the time when the oil cylinder 4 drops but has not reached the lower limit, and an alarm is given if the set time is exceeded.

[0054] In some embodiments of the present application, the oil cylinder 4 is connected with an oil return pipe 5, the oil return pipe 5 is connected with the overflow valve 14, and the oil return pipe 5 is provided with an oil return filter 3.

[0055] In the embodiment, the oil return filter 3 is arranged on the oil return pipe 5 at the end of the system, and functions to filter the contaminants generated or invaded in the system before the contaminants return to the oil tank 7, and thus the oil return filter 3 is one of the most important filters for controlling the cleanliness of the system.

[0056] In some embodiments of the present application, the oil passage block 11 has a plurality of pressure measuring joints 12.

[0057] In the embodiment, the oil passage block 11 is a collection of dispersed hydraulic oil passages, and the oil passage block 11 is a block for controlling the operation of the hydraulic oil, and is usually made of metal, and has the advantages of simplifying the installation, maintenance, replacement and later maintenance of the hydraulic system.

[0058] In some embodiments of the present application, the oil passage block 11 is provided with electromagnetic reversing valves 13, the electromagnetic reversing valves 13 are connected with the overflow valves 14, and the number of the electromagnetic reversing valves 13 is equal to the number of the overflow valves 14.

[0059] The electromagnetic reversing valve 13 is a directional control valve having two or more flow forms and two or more oil ports, and is a valve for realizing the communication, cut-off and reversing of the hydraulic oil flow, and the pressure unloading and sequence action control.

[0060] In some embodiments of the present application, the oil tank 7 is provided with an air cooler 15, the air cooler 15 is connected with the motor 1, and the air cooler 15 is located between the motor 1 and the hydraulic actuator.

[0061] The air cooler 15 uses the air around the hydraulic system as a heat exchange medium to exchange heat with the oil of the hydraulic system, so as to forcibly take away the heat and reduce the temperature of the oil of the hydraulic system, thereby improving the stability of the operation of the hydraulic system and the service life of the hydraulic components.

[0062] In some embodiments of the present application, the oil tank 7 is provided with a liquid level gauge 8, so as to enable the staff to know the remaining amount of the oil tank 7.

[0063] In some embodiments of the present application, the second actuator further comprises a trolley 9, the oil passage block 11 is located on the trolley 9, and the trolley 9 is provided with a pressure gauge 10.

[0064] In the embodiment, the oil passage block 11, the overflow valves 14 and the electromagnetic reversing valves 13 arranged on the oil passage block 11 are all located on the trolley 9, and the bottom of the trolley 9 has a pulley, so as to enable the staff to move the position of the whole second actuator and adjust the distance between the first actuator and the second actuator.

[0065] In summary, the embodiments of the present application have at least the following beneficial effects:

[0066] The embodiment of the present application provides a hydraulic plate drawing control system, which comprises a first actuator and a second actuator used in cooperation with each other, the first actuator comprises an oil tank 7, a hydraulic actuator arranged on the oil tank 7 and a motor 1, the hydraulic actuator is connected with the motor 1; the second actuator comprises an oil path block 11 and an overflow valve 14 arranged on the oil path block 11, the overflow valve 14 is connected with the hydraulic actuator; and the hydraulic plate drawing control system further comprises a controller connected with the first actuator and the second actuator.

[0067] The present application sets the overflow valve 14 on the oil return part of the hydraulic actuator, and a certain pressure difference can be generated when the liquid flows through the overflow valve 14, so that the desired back pressure can be obtained. When a certain back pressure is set, although a part of the oil source energy is consumed, the load movement can be stable. The controller of the present application sets eight channels, any one of which can be used as the action of the hydraulic actuator, and the corresponding number is set after the channel is selected, and the hydraulic actuator acts when the set number is reached. In addition, the total action time of the hydraulic actuator is set by the controller.

[0068] The above is only the preferred embodiment of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement and the like within the spirit and principle of the present application shall be included in the protection scope of the present application.

[0069] It is obvious for those skilled in the art that the present application is not limited to the details of the above-mentioned exemplary embodiments, and the present application can be realized in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims.

Claims

1. A hydraulic draw control system, characterized by, The first and second actuators are used together, the first actuator comprises an oil tank, a hydraulic actuator arranged in the oil tank and a motor, the hydraulic actuator is connected with the motor; The second actuator comprises an oil path block and an overflow valve arranged in the oil path block, the overflow valve is connected with the hydraulic actuator; A controller is further included, the controller is connected with the first and second actuators; The hydraulic actuator comprises a cylinder and a pneumatic cylinder connected with each other, the cylinder is connected with the motor through a vane pump, the cylinder is connected with an oil pipe; The cylinder and the pneumatic cylinder are respectively provided with a cylinder electromagnetic valve and a pneumatic cylinder electromagnetic valve; The controller is provided with eight channels, any one of the channels can be used as the action of the hydraulic actuator, The operation steps of the first actuator comprise: Any one of the channels is selected through the controller, then the corresponding number is set, when the hydraulic actuator reaches the set number, the cylinder electromagnetic valve drops to the lower limit, then the pneumatic cylinder advances to the front limit, the pneumatic cylinder retreats to the rear limit after reaching the front limit, then the cylinder electromagnetic valve rises to the upper limit, and the cycle is repeated.

2. The hydraulic draw control system of claim 1, wherein, The cylinder is connected with an oil return pipeline, the oil return pipeline is connected with the overflow valve, and the oil return pipeline is provided with an oil return filter.

3. The hydraulic draw control system of claim 1, wherein, The oil path block is provided with a plurality of pressure measuring joints.

4. The hydraulic draw control system of claim 1, wherein, The oil path block is provided with an electromagnetic reversing valve, the electromagnetic reversing valve is connected with the overflow valve, and the number of the electromagnetic reversing valve is equal to the number of the overflow valve.

5. The hydraulic draw control system of claim 1, wherein, The oil tank is provided with an air cooler, the air cooler is connected with the motor, and the air cooler is located between the motor and the hydraulic actuator.

6. The hydraulic draw control system of claim 1, wherein, The oil tank is provided with a liquid level gauge.

7. The hydraulic draw control system of claim 1, wherein, The second actuator further comprises a trolley, and the oil path block is located in the trolley.

8. The hydraulic draw control system of claim 7, wherein, The trolley is provided with a pressure gauge.

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