Hydraulic vibration system

Abstract

The present application discloses a hydraulic vibration system, which belongs to the field of hydraulic vibration technology. The system includes an oil supply module, a power module, a hydraulic module, an execution module and a control module, wherein the control module is electrically connected to the oil supply module, the power module, the hydraulic module and the execution module respectively; the oil supply module is connected to the power module, and the oil supply module is used to supply oil to the power module; the power module is connected to the hydraulic module, and the power module and the hydraulic module jointly control the vibration amplitude of the execution module; the hydraulic module is connected to the execution module, and the hydraulic module is integrated with a switch valve group, an electro-hydraulic reversing valve, a relief valve and a diverter and collector valve; the vibration frequency and period of the execution module can be adjusted by opening and closing the switch valve group. The main purpose of the present application is to provide a vibration amplitude, a vibration frequency and a vibration period that meet the processing requirements when processing pipeline workpieces or similar products.

Description

Technical Field

[0001] The present application relates to the technical field of hydraulic vibration, and more specifically, to a hydraulic vibration system. Background Art

[0002] In the process of manufacturing pipeline workpieces, it is usually necessary to eliminate the stress of pipeline workpieces through vibration to improve the quality of pipeline workpieces. At present, according to the form of vibration, it can be divided into mechanical, electric, hydraulic and pneumatic forms, and different vibration forms are used for different equipment processing.

[0003] To control the amplitude and frequency of vibration, a servo cylinder can be used. For example, a Chinese patent document (publication number: CN101020234A) records a method and equipment for vibration casting of metal castings, including a base, on which a servo cylinder is installed. The servo cylinder is connected to the bottom surface of the platform of the hydraulic vibration equipment. The mold is placed on the platform of the hydraulic vibration equipment. According to the material properties of the cast metal, the size of the casting and the different stages of the casting process, the servo cylinder sets the corresponding frequency, amplitude, waveform and time. Under the action of the servo cylinder, the platform and the mold vibrate accordingly, and then the metal solution is poured into the mold from the pouring gate, and the casting is carried out while vibrating.

[0004] A Chinese patent document (publication number: CN104607378B) describes a magnetorheological fluid excitation device for vibration processing, including an excitation cylinder, a magnetorheological fluid hydraulic system, and an exciter working condition monitoring system; the excitation cylinder includes an excitation cylinder body, a mounting base, an electromagnetic coil, and an excitation end cover; the magnetorheological fluid hydraulic system includes a magnetorheological fluid tank, a filter, an oil pump, a motor, a one-way valve, a relief valve, an oil pressure gauge, a manual ball valve, a unloading valve, and a thermometer; the exciter working condition monitoring system includes an ultrasonic power supply, a laser displacement sensor, a sensor bracket, a preamplifier, a conversion board, a data acquisition card, and an industrial computer. This technical solution can monitor the excitation amplitude and frequency in real time, and can quickly and conveniently adjust the excitation amplitude and frequency.

[0005] Different from the servo cylinder or electromagnetic vibration method, the hydraulic vibration method realizes the vibration of the vibrator or motor by controlling the liquid. For example, the Chinese patent document (publication number: CN204690558U) records an open hydraulic vibration system that can realize dual frequencies, including an oil tank, an electric-controlled confluence pump, a vibration reversing valve, a motor, and a filter; the S port of the electric-controlled confluence pump is connected to the oil tank, the oil outlet P1 of the electric-controlled confluence pump is connected to the inlet P2 of the vibration reversing valve, the vibration reversing valve is connected to the motor, and the oil return port T of the vibration reversing valve is connected to the oil tank. However, the hydraulic vibration system of this technical solution cannot realize the control of the vibration amplitude and vibration frequency, and is not suitable for the vibration requirements required for the processing of pipeline workpieces or similar products.

[0006] In response to the problems in the related technology, the present application provides a method of achieving vibration amplitude by a hydraulic power source and a diverter and collector valve, and achieving vibration frequency control by a high-speed switching valve group, so as to meet the requirements of pipeline workpieces or other similar scenarios for vibration mode. Summary of the invention

[0007] 1. Technical issues

[0008] The embodiment of the present application solves the problems of vibration amplitude, frequency and period of a workbench suitable for pipeline workpiece processing by providing a hydraulic vibration system.

[0009] 2. Technical solution

[0010] In order to achieve the above objectives, the present application provides a hydraulic control system.

[0011] The hydraulic control system according to the present application includes: an oil supply module, a power module, a hydraulic module, an execution module and a control module, wherein the control module is electrically connected to the oil supply module, the power module, the hydraulic module and the execution module respectively;

[0012] The oil supply module is connected to the power module, and the oil supply module is used to supply oil to the power module;

[0013] The power module is connected to the hydraulic module, and the power module and the hydraulic module jointly control the vibration amplitude of the execution module;

[0014] The hydraulic module is connected to the execution module, and the hydraulic module integrates a switch valve group, an electro-hydraulic reversing valve, a relief valve and a flow dividing and collecting valve;

[0015] The overflow valve is connected to the electro-hydraulic reversing valve, and the flow dividing and collecting valve is arranged between the switch valve group and the electro-hydraulic reversing valve. The vibration frequency and period of the execution module can be adjusted by opening and closing the switch valve group.

[0016] Furthermore, the switch valve group includes a first switch valve, a second switch valve and a third switch valve; the execution module includes a vibration actuator; the first switch valve and the third switch valve are connected to the lower cavity of the vibration actuator, and the second switch is connected to the upper cavity of the vibration actuator.

[0017] Furthermore, the relief valve of the hydraulic module includes two relief valves, which are connected in parallel to perform pressure loading on the system; the parallel operation of the relief valves is a loading safety margin design and has a protection function in the event of overpressure.

[0018] Furthermore, the hydraulic module is also integrated with a pressure relay, a pressure gauge, a pressure limiting valve and a damper. The pressure relay is fixedly mounted on the hydraulic control module to facilitate on-site observation and position adjustment; the pressure limiting valve and damping control of the hydraulic module can smooth the impact and stabilize the start, stop and high-frequency vibration.

[0019] Furthermore, the hydraulic module includes an actuator interface, the vibration actuator is provided with a pipe joint, and the actuator interface is connected to the pipe joint through a steel pipe. The vibration actuator is a low-friction structure with a built-in displacement sensor. The displacement sensor and the system limit switch detect the synchronization position and output a signal. The control module adjusts the opening and closing frequency of the high-speed switch valve to synchronize the vibration cycle, and the vibration platform synchronizes the high-frequency vibration.

[0020] Furthermore, the execution module includes a vibration actuator, an upper platform and a lower platform, the upper platform and the lower platform are connected by a pin, and the vibration actuator is located between the upper platform and the lower platform and is connected to the upper platform and the lower platform.

[0021] Furthermore, the power module is composed of an oil inlet filter, a motor oil pump, a one-way valve and a pressure line filter connected in sequence, and a displacement regulating valve and a regulating potentiometer are arranged in the motor oil pump. By adjusting the motor oil pump displacement valve, the cycle amplitude can be adjusted steplessly, and the vibration cycle amplitude is adjusted in stages by the control module with the help of the built-in multi-potentiometer of the motor oil pump.

[0022] Furthermore, the oil supply module includes an oil tank, a temperature relay is provided outside the oil tank, a cooler is installed on the surface of the oil tank, and the cooler is connected to an external water supply device. The temperature relay is used to detect the temperature of the oil tank. When the temperature of the oil tank is higher than the temperature threshold, the temperature sensor sends a signal to the control system, and the control system opens or closes the water circulation to cool the oil tank or stops cooling.

[0023] Furthermore, the oil tank is provided with an oil return filter, and the oil return filter is provided with a pressure difference transmitter, and the pressure difference transmitter can give an alarm to the control module.

[0024] Furthermore, it also includes an accumulator, which provides instantaneous flow to supplement the needs of the hydraulic vibration system and smoothes out pressure shocks during the operation of the system; the accumulator is arranged on the outer wall of the oil tank, and the hydraulic module is provided with an accumulator interface, and the accumulator is connected to the hydraulic module through the accumulator interface.

[0025] Furthermore, the oil tank is provided with a liquid level control relay for detecting the oil height in the oil tank, and the oil tank is installed with an air filter for maintaining the balance between the oil tank and the atmospheric pressure and filtering the air entering the oil tank.

[0026] Furthermore, the control module includes a processor and a display, the processor is used to process signals from the oil supply module, power module, hydraulic module and execution module, and send instructions to the oil supply module, power module, hydraulic module and execution module; the processor and the display are electrically connected, the display is used to display the operating status of the vibration system, and can send instructions to the processor through the display.

[0027] 3. Beneficial effects

[0028] (1) The hydraulic control system of the present application provides the vibration amplitude, frequency and period required for processing pipeline workpieces or similar products through the cooperation of the oil supply module, power module, hydraulic module, execution module and control module. The power module combines the flow divider and flow collector valve of the hydraulic module to control the vibration amplitude of the execution module. Under the control of the control module, the hydraulic module controls the vibration frequency and vibration period of the vibration actuator of the vibration module by opening and closing the switch valve group, and realizes the synchronous movement of multiple vibration actuators.

[0029] (2) The hydraulic control method of the system is used to effectively meet the high-frequency vibration requirements. After loading, the large-flow power module outputs a constant flow Q0 and pressure P0, which determines the vibration cycle amplitude. By adjusting the displacement of the motor oil pump of the power module, the vibration cycle amplitude can be adjusted steplessly. At the same time, the system can also use the potentiometer built into the motor oil pump to directly adjust the vibration cycle amplitude in stages; the high-speed switch valve group composed of the first, second, and third high-speed switch valves controls the high-speed movement and movement direction of the vibration actuator, and the control module adjusts the vibration cycle frequency of the vibration actuator and the vibration platform.

[0030] (3) The synchronous vibration requirement is achieved by using flow distribution and the control of the vibration period starting point, stopping point and vibration frequency. The flow divider and collector valve divides the constant flow pressure oil output by the power module into Q 1-1 , Q 1-2 , Q 1-3 After the pressure oil enters the upper and lower chambers of the actuator, the control module adjusts the opening point, closing point, and vibration cycle frequency of the high-speed switch valve to compensate for the cumulative error of the actuator action after the diversion and collection valve is diverted, so that the vibration actuator can perform synchronous high-frequency movement.

[0031] (4) Use hydraulic and control modules to effectively control vibration pressure. The pressure value of the vibration hydraulic system can be normally maintained at P0. The pressure relay detects that the pressure reaches the high pressure threshold P1 and outputs a signal. The control module controls the pressure limiting valve to quickly divert, smooth the impact, and reduce the pressure to P0. If the system pressure drops suddenly, the pressure relay detects that the pressure reaches the low pressure threshold P2 and outputs a signal. The control module controls the motor to stop. The hydraulic module also integrates damping. Damping control can also smooth the impact and stabilize the start, stop, and high-frequency vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The schematic embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application. In the drawings:

[0033] Figure 1 is a control logic diagram of a hydraulic vibration system according to the present application;

[0034] Figure 2 is a schematic diagram of the principle of a hydraulic vibration system according to the present application;

[0035] Figure 3 is a schematic diagram of the structure of a working platform according to the present application;

[0036] Figure 4 is a front view of a hydraulic module according to the present application;

[0037] Figure 5 is a top view of a hydraulic module according to the present application.

[0038] Explanation of the symbols in the schematic diagram:

[0039] 101, oil tank; 102, return oil filter; 103, cooler; 104, solenoid water valve; 105, electro-hydraulic reversing valve; 106, flow dividing and collecting valve; 107, vibration actuator; 108, first switch valve; 109, second switch valve; 110, third switch valve; 111, pressure relay; 112, pressure gauge; 113, accumulator; 114, overflow valve; 115, pressure limiting valve; 116, liquid level control relay; 117, air filter; 118, motor oil pump; 119, one-way valve; 120, pressure line filter; 121, oil inlet filter; 122, temperature relay;

[0040] 201, upper platform; 202, elastic element; 203, pin; 204, lower platform; 205, pipe joint; 206, vibration actuator;

[0041] 301, actuator interface; 302, oil inlet; 303, base; 304, plug; 305, oil return port; 306, accumulator interface. DETAILED DESCRIPTION

[0042] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0043] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0044] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0045] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0046] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0047] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0048] Combination Figure 1-5 A hydraulic vibration system of this embodiment includes an oil supply module, a power module, a hydraulic module, an execution module and a control module, wherein the control module is electrically connected to the oil supply module, the power module, the hydraulic module and the execution module respectively. The oil supply module includes an oil tank 101, and the oil tank 101 is used to supply oil to the power module. The power module is connected to the hydraulic module and controls the vibration amplitude of the execution module together with the hydraulic module. The hydraulic module is connected to the execution module and is used to control the vibration period and vibration frequency of the execution module.

[0049] Specifically, the oil supply module includes an oil tank 101, and a cooler 103, a temperature relay 122, an electromagnetic water valve 104, an oil return filter 102, a liquid level control relay 116, an air filter 117 and an accumulator 113 integrated in the oil tank 101; the power module is composed of an oil inlet filter 121, a motor oil pump 118, a one-way valve 119 and a pressure line filter 120 connected in sequence; the hydraulic module includes a switch valve group, an electro-hydraulic reversing valve 105, a relief valve 114, a diverter and collector valve 106, an actuator interface 301, a pressure relay 111, a pressure gauge 112, an oil inlet 302, an accumulator 113 and a pressure limiting valve 115; the execution module includes a workbench and a vibration actuator 206 for processing pipeline workpieces; the control module includes a controller and a display, and the controller is used to receive signals from other modules and send instructions. The relationship between the modules is described in detail below.

[0050] The power module includes a motor oil pump 118, which can be used for constant output flow control, displacement control and pressure control. The motor oil pump 118 has a built-in displacement regulating valve and a potentiometer. By adjusting the displacement of the oil pump and controlling the potentiometer, the amplitude of the vibration actuator 206 can be controlled and graded. This is to further improve the working performance of the power module.

[0051] The power module of the present application is composed of an oil inlet filter 121, a motor oil pump 118, a one-way valve 119 and a pressure line filter 120 connected in sequence. The motor oil pump 118 is connected to the oil tank 101, and the oil outlet of the motor oil pump 118 is connected to the hydraulic module. The oil inlet 302 of the hydraulic module is connected to a pipe joint, and the oil outlet of the motor oil pump 118 is also connected to a pipe joint. The two pipe joints and the oil port are connected by a steel pipe. The hydraulic module is also provided with an oil outlet connected to the vibration actuator 206. Since the vibration amplitude of the vibration actuator 206 is adjusted by the stepless adjustment and direct grading of the displacement of the motor oil pump 118 of the power module and the flow distribution of the hydraulic module, when the displacement of the motor oil pump 118 is large, the vibration amplitude range of the vibration actuator 206 will also be expanded accordingly.

[0052] By adjusting the displacement regulating valve of the power module motor oil pump 118, the vibration amplitude of the hydraulic vibration system can be set. The control module sets the potentiometer to set the vibration gear of the vibration amplitude. The power module outputs a constant flow Q0 and pressure P0 after the displacement setting and vibration amplitude classification. The oil passes through the hydraulic module's diverter and collector valve 106 and is divided into flow Q and pressure P0 in equal proportion. 1-1 , Q 1-2 , Q 1-3 The three parts of the pressure oil of each part enter the upper and lower chambers of the vibration actuator 206 respectively, and the vibration actuator 206 moves up and down. The control module controls and adjusts the opening point, closing point, and vibration cycle frequency of the high-speed switch valve group of the hydraulic module to make the vibration actuator 206 move synchronously with high frequency and compensate for the accumulated error of the vibration actuator 206 after the diversion of the diversion and collection valve 106.

[0053] The execution module of this embodiment includes a working platform and a vibration actuator 206. The working platform is divided into an upper platform 201 and a lower platform 204. In actual operation, the lower platform 204 is a fixed platform, and the upper platform 201 is a vibration platform. The upper platform 201 and the lower platform 204 are connected at four corners by pins 203, and an external limit switch is provided. There is an elastic element 202 between the upper platform 201 and the pins 203, and the connection is provided with a guide and a taper, so as to play a role in stable fixation and favorable vibration. The vibration actuator 206 connected between the upper platform 201 and the lower platform 204 is a low-friction structure, with a built-in displacement sensor, and is connected to the hydraulic module oil port by a steel pipe; the low-friction structure of the vibration actuator can meet the high-speed movement speed, which is conducive to the high-frequency movement of the piston rod of the vibration actuator, and reduces the movement resistance of the platform, so that the piston rod of the vibration actuator 206 and the vibration platform can vibrate smoothly.

[0054] The hydraulic module of the present embodiment includes a switch valve group, an electro-hydraulic reversing valve 105, a relief valve 114 and a flow-dividing and collecting valve 106, wherein the flow-dividing and collecting valve 106 is arranged between the switch valve group and the electro-hydraulic reversing valve 105, and the relief valve 114 is arranged between the motor oil pump 118 and the electro-hydraulic reversing valve 105. In the present embodiment, the relief valve 114 is preferably two and connected in parallel. The opening and closing of the switch valve group determines the vibration period and frequency of the vibration actuator 107. The switch valve group in the present embodiment includes a first switch valve 108, a second switch valve 109 and a third switch valve 110. The specific number of switch valves required can be increased or decreased according to the actual construction conditions. The first switch valve 108, the second switch valve 109 and the third switch valve 110 cooperate with each other to control the up and down movement of the vibration actuator 206.

[0055] Specifically, the electro-hydraulic reversing valve 105 in the present embodiment includes two interfaces, an A interface and a B interface, wherein the B interface is used as a standby interface. When the electro-hydraulic reversing valve 105 is at the A interface, the first switch valve 108 and the third switch valve 110 of the present embodiment are connected to the lower chamber of the vibration actuator 206, and the second switch valve 109 is connected to the upper chamber of the vibration actuator 206. When the first switch valve 108 and the second switch valve 109 are connected and the third switch valve 110 is turned off, the hydraulic module controls the upward movement of the vibration actuator 206, and when the second switch valve 109 and the third switch valve 110 are connected and the first switch valve 108 is turned off, the vibration actuator 206 moves downward. When the B port of the electro-hydraulic reversing valve 105 is connected to the lower chamber of the vibration actuator 206, the electro-hydraulic reversing valve 105 can control the action of the vibration actuator 206. When the second switch valve 109 and the third switch valve 110 are cut off and the first switch valve 108 is turned on, the electro-hydraulic reversing valve 105 can also realize the up and down movement of the vibration actuator 206 by switching between the A port and the B port.

[0056] In order to more accurately control the oil entering the vibration actuator 206, a flow dividing and collecting valve 106 is set between the switch valve group and the electro-hydraulic reversing valve 105. The flow dividing and collecting valve 106 can divide the oil into equal amounts of oil in proportion, so that the oil enters the upper cavity and the lower cavity of the vibration actuator 206. In actual construction, different numbers of vibration actuators 206 are set according to actual needs. The vibration actuator 206 is a low-friction structure. When there are several vibration actuators 206 that perform vibration movements up and down, cumulative errors will appear between the vibration actuators 206. For this problem, a displacement sensor and a limit switch can be installed on the vibration actuator 206 to detect the state of the vibration actuator 206, and the detection result is sent to the control module in the form of a signal. The control module adjusts the opening point and the closing point of the switch valve group of the hydraulic module, thereby adjusting the movement frequency of the vibration actuator 206. The control module adjusts the switch valve group so that the vibration actuator 206 drives the upper platform 201 and the lower platform 204 to achieve synchronous movement. By controlling the vibration frequency of the vibration actuator 206, the vibration frequency of the upper and lower platforms is controlled.

[0057] In order to further realize the pressure regulation of the hydraulic vibration system, the hydraulic module of this embodiment is also integrated with a pressure relay 111, a pressure gauge 112, a pressure limiting valve 115 and damping. During the operation of the hydraulic vibration system, the pressure relay 111 is used to detect the pressure threshold of the hydraulic vibration system. When the pressure of the hydraulic vibration system reaches the set high pressure threshold, the micro switch of the pressure relay 111 is energized, and at the same time, the detected signal is sent to the control module, and the control module adjusts the pressure limiting valve 115 to achieve rapid diversion of the oil, so that the pressure of the hydraulic vibration system drops to the set range. When the pressure of the hydraulic vibration system suddenly drops, the pressure detected by the pressure relay 111 reaches the set low pressure threshold, and the pressure relay 111 outputs a signal to the control module, and the control module controls the motor oil pump 118 to stop, ensuring that the vibration hydraulic system is not over-pressured during operation and protecting the system. The hydraulic module can also be used to smooth the impact by setting damping to stabilize the start, stop and high-frequency vibration.

[0058] The oil supply module of this embodiment has the functions of automatic temperature control, circulation filtration and air filtration. The main part of the oil supply module is the oil tank 101, on which a cooler 103, a temperature relay 122 and an electromagnetic water valve 104 are integrated. A temperature relay 122 is arranged outside the oil tank 101, and a cooler 103 is arranged on the side of the oil tank 101. The electromagnetic water valve 104 controls the on and off of the external water supply pump to supply water to the cooler. Before the hydraulic vibration system starts to operate, the external water supply pump motor is started first, and the external water supply begins to enter the cooler and the water circulation to cool the oil in the oil tank 101.

[0059] Under normal circumstances, the electromagnetic water valve 104 is in the disconnected state, and the temperature relay 122 is used to detect the temperature of the oil tank 101. When the temperature of the oil tank 101 exceeds the set temperature threshold, the high-temperature contact of the temperature relay 122 is connected, and the temperature relay 122 sends a signal to the control module. The control module controls the relay to open the electromagnetic water valve 104, and controls the external water supply pump to supply water through the cooler 103 to circulate water to cool the oil tank 101; when the temperature of the oil tank 101 is lower than the set temperature threshold, the low-temperature contact of the temperature relay 122 is connected, and the control module controls the temperature relay 122 to close the electromagnetic water valve 104 and stop the circulating cooling of the oil tank 101.

[0060] The pressure line filter 120 of the hydraulic power module and the return oil filter 102 on the oil tank 101 circulate and filter the oil of the hydraulic vibration system. The return oil filter 102 is equipped with a differential pressure transmitter. When the differential pressure transmitter detects that the oil filter is clogged, the blockage contact of the differential pressure transmitter is connected, and the differential pressure transmitter sends a signal to the control module to warn, and the alarm light is on, prompting the staff to replace the filter element.

[0061] The oil tank of the oil supply module of this embodiment is provided with a liquid level control relay 116 and an air filter 117. The liquid level control relay 116 controls the height of the liquid level in the oil tank 101. The liquid level control relay 116 has two floats. The floats set the upper and lower positions of the liquid level. When the lower liquid level is reached, the liquid level control relay 116 sends a signal to the control module, and the control module controls the oil supply equipment outside the hydraulic vibration system to add new oil to the oil tank 101. When the upper liquid level is reached, the liquid level control relay 116 sends a signal to the control system, and the hydraulic vibration system controls the oil supply equipment outside the system to stop adding new oil. In specific implementation, the control module can use relays or other similar switches to control the oil supply equipment.

[0062] The air filter 117 is installed on the oil tank and serves as a respirator for the oil tank 101. It can filter the air and filter the oil filling, isolating the dust in the air outside the oil tank 101 and preventing the mixing of particulate matter. At the same time, when the oil level in the oil tank 101 rises, the air is discharged from the inside to the outside, and when it drops, the air is sucked in from the outside to the inside. The air filter 117 maintains the pressure in the oil tank 101 in balance with the atmospheric pressure to avoid cavitation.

[0063] The hydraulic vibration system of this embodiment also includes an accumulator 113. The accumulator 113 is installed in the oil tank 101 of the oil supply module. At the same time, the accumulator 113 is connected to the hydraulic module. The energy storage accumulator 113 absorbs the pressure impact brought to the hydraulic vibration system by the high-speed action of the actuator and provides instantaneous flow to supplement the system needs.

[0064] The control module of the present application includes a processor and a display, wherein the processor is used to process signals from the oil supply module, the power module, the hydraulic module and the execution module, and send instructions to the oil supply module, the power module, the hydraulic module and the execution module; the processor and the display are electrically connected, and the display is used to display the operating status of the vibration system, and can send instructions to the processor through the display. In specific implementation, the control module sends instructions to the relays in the vibration system, and uses the relays to control the vibration frequency, vibration amplitude and vibration period of the vibration system. At the same time, it can also adjust the pressure and temperature of the entire system, and switch the vibration system to manual or automatic control mode.

[0065] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A hydraulic vibration system, comprising an oil supply module, a power module, a hydraulic module, an execution module and a control module, wherein the control module is electrically connected to the oil supply module, the power module, the hydraulic module and the execution module respectively; It is characterized in that The oil supply module is connected to the power module, and the oil supply module is used to supply oil to the power module; The power module is connected to the hydraulic module, and the power module and the hydraulic module jointly control the vibration amplitude of the execution module; The hydraulic module is connected to the execution module, and the hydraulic module integrates a switch valve group, an electro-hydraulic reversing valve, a relief valve and a flow dividing and collecting valve; The overflow valve is connected to the electro-hydraulic reversing valve, and the flow dividing and collecting valve is arranged between the switch valve group and the electro-hydraulic reversing valve. The vibration frequency and period of the execution module can be adjusted by opening and closing the switch valve group.

2. The hydraulic vibration system according to claim 1, characterized in that: The switch valve group includes a first switch valve, a second switch valve and a third switch valve, and the execution module includes a vibration actuator. The first switch valve and the third switch valve are connected to the lower chamber of the vibration actuator, and the second switch valve is connected to the upper chamber of the vibration actuator.

3. The hydraulic vibration system according to claim 1, characterized in that: There are two overflow valves, and the two overflow valves operate in parallel to achieve overpressure protection for the hydraulic vibration system.

4. The hydraulic vibration system according to claim 1, characterized in that: The hydraulic module is also integrated with a pressure relay, a pressure gauge, a pressure limiting valve and a damper for controlling the pressure in the hydraulic system.

5. The hydraulic vibration system according to claim 2, characterized in that: The vibration actuator is a low-friction structure and is provided with a pipe joint; the hydraulic module includes an actuator interface, and the actuator interface is connected to the pipe joint through a steel pipe.

6. The hydraulic vibration system according to claim 2, characterized in that: The execution module comprises a vibration actuator, an upper platform and a lower platform, the upper platform and the lower platform are connected by a pin, and the vibration actuator is located between the upper platform and the lower platform and is connected to the upper platform and the lower platform.

7. The hydraulic vibration system according to claim 1, characterized in that: The power module is composed of an oil inlet filter, a motor oil pump, a one-way valve and a pressure line filter connected in sequence, and a displacement regulating valve and a regulating potentiometer are arranged in the motor oil pump.

8. The hydraulic vibration system according to claim 7, characterized in that: The oil supply module comprises an oil tank, a temperature relay is arranged outside the oil tank, a cooler is installed on the surface of the oil tank, and the cooler is connected to an external water supply device.

9. The hydraulic vibration system according to claim 8, characterized in that: The oil tank is provided with an oil return filter, and the oil return filter is provided with a pressure difference transmitter, and the pressure difference transmitter can give an alarm to the control module.

10. The hydraulic vibration system according to claim 8, characterized in that: It also includes an accumulator, which is arranged on the outer wall of the oil tank. The hydraulic module is provided with an accumulator interface, and the accumulator is connected to the hydraulic module through the accumulator interface.

11. The hydraulic vibration system according to claim 9, characterized in that: The oil tank is provided with a liquid level control relay for detecting the oil height in the oil tank, and the oil tank is installed with an air filter for maintaining the balance between the oil tank and the atmospheric pressure and filtering the air entering the oil tank.

12. The hydraulic vibration system according to claim 1, characterized in that: The control module includes a processor and a display. The processor is used to process signals from the oil supply module, the power module, the hydraulic module and the execution module, and send instructions to the oil supply module, the power module, the hydraulic module and the execution module; the processor and the display are electrically connected, the display is used to display the operating status of the vibration system, and can send instructions to the processor through the display.

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