Instantaneous high-efficiency oil loading device

Abstract

The utility model relates to the technical field of hydraulic pressure especially provides transient high -efficient loading oil source device. The oil tank (1) is connected with control valve part, and control valve part contains electromagnetic reversing valve one DT1 (6), one -way speed regulating valve (7), plug -in type pilot valve (8), electromagnetic reversing valve two DT2 (14), electromagnetic reversing valve one DT1 (6) is two two -way three -way control valve for electromagnetic reversing valve two DT2 (14), one -way speed regulating valve (7) is an adjustable one -way throttle valve, plug -in type pilot valve (8) is the unloading valve and can realize unloading function, electromagnetic reversing valve two DT2 (14) connects the oil tank (1), and control valve part is connected with the operating cylinder part. Through the combination conduit connection, the adaptation of the restraint lever calibration force device chassis space is simultaneously saved coupling, public bottom plate, and the shock pad is matched.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic technology, and in particular to a device for providing an instantaneous and efficient oil source. Background Technology

[0002] On December 15, 2025, a search was conducted in the China Patent Publication Database using "hydraulic and check valve and solenoid directional valve and accumulator and pilot valve and unloading" as the full-text keywords, with the option to allow synonym expansion. The following documents were found:

[0003] CN202317711U: Clamping system to solve the problems of insufficient clamping force and unstable pressure. The oil tank is equipped with a filling block and an accumulator. The filling block is equipped with components such as a one-way valve for the main oil circuit.

[0004] CN107575428B: Non-impact electro-hydraulic check valve, including main valve, intermediate valve, primary valve, etc. The primary valve is a two-position three-way solenoid directional valve to control the oil circuit opening and closing.

[0005] CN104806588B: Dual-pump confluence hydraulic control system to solve the problem of large impact, including working hydraulic system, unloading valve group, etc., equipped with check valve, external control relief valve and control device.

[0006] CN115962169B: A new type of telescopic cylinder arm pin control system, including a cylinder arm pin control valve, a control pump, etc. The valve body is equipped with an electromagnetic proportional relief valve, which is connected to the corresponding oil cylinder.

[0007] CN110714944A: Differential falling hammer device and method, the falling hammer system includes a hydraulic station, a lifting cylinder, etc., the lifting cylinder is connected to the weight, and equipped with components such as a solenoid directional valve.

[0008] CN202659609U: Combined control valve, including oil inlet, accumulator, etc., equipped with a first directional valve, selectively connecting the oil inlet to the accumulator or the return port, also related to the hydraulic control system of cranes.

[0009] CN2626646Y: Push-cylinder type hydraulic screw press, the machine frame is equipped with screw, slide block, etc., and there are hydraulic working cylinders on both sides. The hydraulic system includes servo valves and three-position four-way slide valves.

[0010] CN222141641U: Integrated valve assembly and engineering machinery, the valve body is equipped with a reversing valve, an unloading valve, etc., the accumulator liquid port is connected to the liquid inlet, and the unloading valve is connected to the accumulator liquid port and the liquid outlet.

[0011] CN104728203B: Electro-hydraulic directional valve with internal pressure relief function, including solenoid pilot valve, etc., unloading valve core controls the pressure switching of the fluid supply system, and connects the oil source and the main return fluid.

[0012] CN211449243U: Hydraulic system for rapid quantitative loading station, including oil cylinders, hydraulic pumps, etc., with two input oil circuits, each branch equipped with an accumulator and safety valve group.

[0013] CN104806588A: Dual-pump confluence hydraulic control system to solve the problem of large impact, including working hydraulic system, unloading valve group, etc., equipped with check valve, external control relief valve and control device.

[0014] CN101774042A: Hydraulic transmission circuit for a slanted blade shearing machine, suitable for steel plate processing, including a high-pressure pump source, accumulator control device, etc., connecting the shearing cylinder and the pressure plate cylinder.

[0015] CN114909351A: Quantitative closed-center hydraulic system and method, a dual-circuit load-sensitive control valve containing multiple valve components and a fixed damping orifice, with the control oil circuit connected to the corresponding port.

[0016] CN114909351B: Quantitative closed-center hydraulic system and method, a dual-circuit load-sensitive control valve containing multiple valve components and a fixed damping orifice, with the control oil circuit connected to the corresponding port.

[0017] CN120332259A: Plunger pump system and filter press, including oil storage container, hydraulic device, etc. The hydraulic device has two hydraulic components, and the oil supply pipe is equipped with a reversing device, a check valve and an electrically controlled overflow device.

[0018] CN104454687B: Quantitative loading station hydraulic control device, including hydraulic power source and PLC controller, to control the extension and retraction of chutes, loading gates and other devices to achieve automatic control.

[0019] CN203510774U: Hydraulic system and hydraulic press, including electric motor, variable pump, etc., equipped with unloading circuit (solenoid relief valve, pressure switch) and variable adjustment device.

[0020] CN119614778A: Hydraulic control system and method for hot blast stove valves, including main oil supply device, high and low pressure accumulator group, etc., hydraulic cylinder connected to valves, switching between oil supply or accumulator group.

[0021] CN211009322U: Differential drop hammer device, the drop hammer system includes a hydraulic station, lifting cylinder, etc., the lifting cylinder is connected to the weight, and equipped with components such as a solenoid directional valve.

[0022] CN110714944B: Differential falling hammer device and method, the falling hammer system includes a hydraulic station, a lifting cylinder, etc., the lifting cylinder is connected to the weight, and equipped with components such as a solenoid directional valve.

[0023] CN101774042B: Hydraulic transmission circuit for a slanted blade shearing machine, suitable for steel plate processing, including a high-pressure pump source, accumulator control device, etc., connecting the shearing cylinder and the pressure plate cylinder.

[0024] CN113266612A: Load-sensitive control hydraulic system for pile drivers, including load-sensitive multi-way valves, variable pumps, etc., controls actuators such as travel motors and hydraulic hammers, and is suitable for highway guardrail pile drivers.

[0025] CN105926696A: A device and method for graded recovery of potential energy from an excavator boom, comprising multiple pumps, valves, accumulators, etc., which recovers potential energy using high and low pressure accumulators according to the boom load.

[0026] CN112412927B: Hydraulic component impact fatigue test bench, with a separate control circuit and main test circuit. The main circuit can be equipped with ultra-high pressure components, while the control circuit operates at low pressure.

[0027] CN206487695U: Minimal differential pressure type oil pump combination valve, including main control valve, one-way cartridge unit, etc. The main control valve is an electromagnetic pilot-operated unloading relief valve, and a one-way valve is added to connect to the accumulator.

[0028] CN205047558U: Buffer oil replenishment valve and deep well drilling rig, with two parallel oil circuits in the valve body. The first oil circuit is equipped with a shuttle valve for unloading, and the second oil circuit is equipped with a reverse series check valve for oil replenishment.

[0029] CN115750474A: Control valve block for turbine governor, equipped with three mechanisms: electrical regulation, hydraulic follow-up, and high-pressure oil pressure, and operates through sensors and parameter settings.

[0030] CN114198354B: Pilot control system and integrated valve block, including pressure reducing relief valve and first solenoid directional valve, which are respectively connected to the main pressure oil port and the main valve pilot oil port.

[0031] CN115898975A: A hydraulic system with adjustable speed and force, including two parallel synchronous hydraulic cylinders, which control the oil circuit through a reversing valve and a throttle valve to adjust the speed and force.

[0032] CN108953244B: Hydraulic system for assembling steel arch frame of tunnel boring machine, controlled by servo valve and proportional pressure control valve, with accumulator and electromagnetic unloading valve connected to the outlet of high pressure quantitative pump.

[0033] CN214945345U: Load-sensitive control hydraulic system for pile drivers, including load-sensitive multi-way valves, variable pumps, etc., controls actuators such as travel motors and hydraulic hammers, and is suitable for highway guardrail pile drivers.

[0034] CN2402461Y: A new type of flat plate hot press, including a frame, hot plate, cylinder structure and liquid filling device, eliminating the low-pressure pump-motor unit and accumulator unit.

[0035] CN116146544A: Hydraulic control system for baling machine and straw square bale baler, main oil supply circuit including oil tank, hydraulic pump, etc., pilot circuit including reversing valve and oil cylinder, the oil cylinder connecting accumulator and control valve group.

[0036] CN119911318A: Hydraulic system for pure electric mining dump truck, including steering and lifting systems. The steering system is equipped with accumulators, multi-way valves, etc., and the lifting system includes relief valves, lifting cylinders, etc. The pump body is driven by a dual-shaft extension motor.

[0037] CN215486891U: Dual-cylinder booster structure, including accumulator, two booster cylinders, injection cylinder, etc. The booster cylinder is connected to the injection cylinder and is synchronously controlled by a valve group.

[0038] CN119283643A: Hydraulic power unit and control method for a draw plate system, including a hydraulic pump, control valve group, and accumulator. The control valve group includes check valves, unloading valves, etc., and drives the actuator cylinder to push the draw plate.

[0039] CN108561352A: Hydraulic system for mining dump trucks, which solves the problems of large impact and high failure rate of lifting systems, including filling valve, accumulator, etc., and a metering pump fills the accumulator with liquid and supplies oil.

[0040] CN206582189U: Hydraulic system for follow-up material support mechanism of bending machine, including main valve body, synchronizing block, etc. The main valve body is equipped with main pressure valve, accumulator, etc., and the synchronizing block includes proportional valve, check valve, etc.

[0041] CN108953244A: Hydraulic system for assembling steel arch frame of tunnel boring machine, controlled by servo valve and proportional pressure control valve, with accumulator and electromagnetic unloading valve connected to the outlet of high pressure quantitative pump.

[0042] CN102022261A: Wind turbine braking system, including oil supply system, accumulator, solenoid directional valve, etc. The oil supply system is connected to a check valve and is divided into three circuits connecting the accumulator, hydraulic cylinder and directional valve.

[0043] CN105650048A: Pilot control valve assembly, integrating multiple solenoid directional valves, including main oil inlet and return oil outlet, etc. When the hydraulic system is depressurized, the main relief valve and the directional valve return oil respectively.

[0044] CN119873629A: Hydraulic circuit for spreader control and front-end lifting, including leveling cylinders, leveling valve groups, etc. The leveling valve group includes two leveling valves and a reversing control valve to realize adaptive leveling and tilting switching of the spreader.

[0045] CN119283643B: Hydraulic power unit and control method for a draw plate system, including a hydraulic pump, control valve group, and accumulator. The control valve group includes check valves, unloading valves, etc., and drives the actuator cylinder to push the draw plate.

[0046] CN106862455B: Heavy-duty dual-function press beam balance control circuit, including oil tank, variable pump oil supply sub-circuit, etc., equipped with upper and lower balance cylinders and unloading sub-circuit, connected to the corresponding regulating cylinder.

[0047] CN104454687A: Quantitative loading station hydraulic control device, including hydraulic power source and PLC controller, to control the extension and retraction of chutes, loading gates and other devices to achieve automatic control.

[0048] CN201592286U: Hydraulic transmission circuit for oblique blade shearing machine, suitable for steel plate processing, including high pressure pump source, accumulator control device, etc., connecting shearing cylinder and pressure plate cylinder.

[0049] CN106862455A: Heavy-duty dual-function press beam balance control circuit, including oil tank, variable pump oil supply sub-circuit, etc., equipped with upper and lower balance cylinders and unloading sub-circuit, connected to the corresponding regulating cylinder.

[0050] CN201593483U: Energy-saving braking system for MW-class wind turbine generator sets, including hydraulic cylinders, hydraulic pumps, etc. The pump is connected to a check valve, an accumulator and a solenoid directional valve, and is connected to the high-speed shaft of the gearbox through a clutch.

[0051] CN2859044Y: Combined control valve for the upper structure of a truck crane, integrating components such as safety valves and accumulators, operating the solenoid directional valve to distribute control oil, and controlling the multi-way valve of the upper structure.

[0052] CN112412927A: Hydraulic component impact fatigue testing bench, with a separate control circuit and main test circuit. The main circuit can be equipped with ultra-high pressure components, while the control circuit operates at low pressure.

[0053] CN107575428A: Non-impact electro-hydraulic check valve, including main valve, intermediate valve, primary valve, etc. The primary valve is a two-position three-way solenoid directional valve to control the oil circuit opening and closing.

[0054] CN118953298A: Hydraulic system for brake energy recovery of coal mine auxiliary transportation and transfer robot, including accumulator, hydraulic pump, etc., with the pump connected to pilot-operated relief valve, check valve and solenoid directional valve.

[0055] CN119873629B: Hydraulic circuit for spreader control and front-end lifting, including leveling cylinders, leveling valve groups, etc. The leveling valve group includes two leveling valves and a reversing control valve to realize adaptive leveling and tilting switching of the spreader.

[0056] CN106545536A: Buffer oil replenishment valve and deep well drilling rig, with two parallel oil circuits in the valve body. The first oil circuit is equipped with a shuttle valve for unloading, and the second oil circuit is equipped with a reverse series check valve for oil replenishment.

[0057] CN113309745A: Dual-cylinder boosting structure and control method, including accumulator, two boosting cylinders, etc., the boosting cylinders are connected to the injection cylinders and are synchronously controlled by valve groups.

[0058] CN205776443U: Excavator boom potential energy graded recovery device, including multiple pumps, valves, accumulators, etc., recovers potential energy using high and low pressure accumulators according to the boom load.

[0059] CN207513972U: Non-impact electro-hydraulic check valve, including main valve, intermediate valve, primary valve, etc. The primary valve is a two-position three-way solenoid directional valve to control the oil circuit opening and closing.

[0060] CN219197754U: Control valve block for turbine governor, equipped with three mechanisms: electrical regulation, hydraulic follow-up, and high-pressure oil pressure, and operates through sensors and parameter settings.

[0061] CN105090154A: Unloading valve block and hydraulic system for engineering machinery, including fixed displacement pump, variable displacement pump system, etc. The unloading valve block is located between the supply and return oil circuits, and the opening and closing core control valve block controls the oil supply object of the pump body.

[0062] CN105090154B: Unloading valve block and hydraulic system for engineering machinery, including fixed displacement pump, variable displacement pump system, etc. The unloading valve block is located between the supply and return oil circuits, and the opening and closing core control valve block controls the oil supply object of the pump body.

[0063] CN201461579U: Electrically controlled multi-functional compact control valve assembly, the valve block body is equipped with an oil supply and control system, including input port, output control port, etc., and is connected through solenoid valve and check valve.

[0064] CN115962169A: A new type of telescopic cylinder arm pin control system, including a cylinder arm pin control valve, a control pump, etc. The valve body is equipped with an electromagnetic proportional relief valve, which is connected to the corresponding oil cylinder.

[0065] CN107917120A: Accumulator switch control pilot-operated solenoid directional valve, adopting a dual-valve core structure, controls the on / off of the oil circuit and the accumulator, as well as the return or supply of oil.

[0066] CN204267394U: Quantitative loading station hydraulic control device, including hydraulic power source and PLC controller, to control the extension and retraction of chutes, loading gates and other devices to achieve automatic control.

[0067] CN204985136U: Unloading valve block and hydraulic system for engineering machinery, including fixed displacement pump, variable displacement pump system, etc. The unloading valve block is located between the supply and return oil circuits, and the opening and closing core control valve block controls the oil supply object of the pump body.

[0068] CN104728203A: Electro-hydraulic directional valve with internal pressure relief function, including solenoid pilot valve, etc., unloading valve core controls the pressure switching of the fluid supply system, and connects the oil source and the main return fluid.

[0069] CN105650048B: Pilot control valve assembly, integrating multiple solenoid directional valves, including main oil inlet and return oil outlet, etc. When the hydraulic system is depressurized, the main relief valve and the directional valve return oil respectively.

[0070] CN114198354A: Pilot control system and integrated valve block, including pressure reducing relief valve and first solenoid directional valve, which are respectively connected to the main pressure oil port and the main valve pilot oil port.

[0071] CN105926696B: A device and method for graded recovery of potential energy from an excavator boom, comprising multiple pumps, valves, accumulators, etc., which recovers potential energy using high and low pressure accumulators according to the boom load.

[0072] CN1565770A: Push-cylinder type hydraulic screw press, the machine frame is equipped with screw, slide block, etc., and there are hydraulic working cylinders on both sides. The hydraulic system includes servo valves and three-position four-way slide valves.

[0073] CN204127396U: Safety control valve assembly, including cartridge relief valve and plate solenoid valve, the combined valve body is composed of multiple valve bodies connected in parallel, and the flow channel has an oblong cross section.

[0074] CN101592172A: Electrically controlled multi-functional compact control valve assembly, the valve block body is equipped with an oil supply and control system, including input port, output control port, etc., and is connected through solenoid valve and check valve.

[0075] CN107917120B: Accumulator switch control pilot-operated solenoid directional valve, adopting a dual-valve core structure, controls the on / off connection between the oil circuit and the accumulator, as well as the return or supply of oil.

[0076] CN108561352B: Hydraulic system for mining dump trucks, which solves the problems of large impact and high failure rate of lifting systems, including filling valve, accumulator, etc., and quantitative pump fills the accumulator with liquid and supplies oil.

[0077] CN113309745B: Dual-cylinder boosting structure and control method, including accumulator, two boosting cylinders, etc., the boosting cylinders are connected to the injection cylinders and are synchronously controlled by valve groups.

[0078] CN117485425A: Hydraulic steering system and dump truck, including main emergency reversing circuit, the emergency circuit is equipped with emergency steering pump, filling valve and accumulator, the accumulator can supply oil to the steering gear.

[0079] CN115898975B: A hydraulic system with adjustable speed and force, including two parallel synchronous hydraulic cylinders, which control the oil circuit through a reversing valve and a throttle valve to adjust the speed and force.

[0080] After careful analysis, the above technology, CN119911318A (hydraulic system for pure electric mining dump trucks), has the following limitations: It can only meet the conventional actions of steering / lifting, lacks high dynamic and high load output capabilities, and cannot be adapted to scenarios such as tooling force adjustment; Structural shortcomings: The design of dual-shaft extension motor driving dual pumps has a high degree of integration, which is not suitable for equipment that needs to be distributed, resulting in poor maintenance flexibility; Performance deficiencies: The system pressure (14.6MPa) and output rate are low, and the design lacks instantaneous energy release, making it unable to cope with strong load requirements.

[0081] CN205047558U (Buffer Oil Supply Valve / System): Single function: It only solves the problem of "buffering impact and negative pressure oil supply", without loading or force adjustment functions, and cannot meet any scenario that requires active output of high load; Limited efficiency: Oil supply relies on the impact energy recovered by the accumulator, the oil supply rate is slow, there is no "rapid pressure supply" design, and it cannot adapt to high dynamic requirements; Poor versatility: The structure is designed for deep well drilling rig motors, the installation position (motor mounting bracket) is fixed, and it cannot be transferred to tooling equipment.

[0082] CN119911318A focuses on "energy saving and space optimization for dump truck steering / lifting," without any requirement for "high dynamic and high load loading." Its dual-shaft extension motor-driven dual-pump design is for "time-sharing load and reducing switching delay," which is unrelated to the "instantaneous energy release" principle of this utility model. CN205047558U focuses on "buffering and oil replenishment for deep well drilling rig motors," with the core being "impact prevention and anti-vacuuming," without loading function. Its accumulator is used for "recovering impact energy for oil replenishment," not "storing energy to achieve instantaneous high load," and the functional logic of the two is completely opposite. CN119911318A's dual-system time-sharing operation and delayed pressure relief cannot adapt to the closed-loop requirement of "pre-tightening-charging-instantaneous loading." CN205047558U's shuttle valve and reverse check valve are only used for pressure screening and oil replenishment, without the core structure of "dual-chamber pre-tightening and rapid pressure relief by unloading valve," and cannot provide a technical approach for high dynamic loading.

[0083] CN119911318A lacks design related to "loading rate and instantaneous load". Its pressure and flow parameters (such as CN119911318A's maximum of 14.6MPa) are far lower than the 21MPa working pressure + 3000KN / s loading rate of this utility model, so there is no basis for technical reference.

[0084] On December 15, 2025, an abstract search was conducted on CNKI (China National Knowledge Infrastructure) for the keywords "hydraulic and check valve and solenoid directional valve and accumulator and pilot valve and unloading", but no relevant literature was found.

[0085] On December 15, 2025, a search was conducted on the website of the United States Patent and Trademark Office for the term "Hydraulic with Check Valve with Solenoid Valve with Accumulator with Pilot Valve with Unloading", but no relevant literature was found; the search URL is https: / / ppubs.uspto.gov / pubwebapp / .

[0086] On December 15, 2025, a search on WIPO's website (https: / / patentscope2.wipo.int / ) for the term "Hydraulic and Check Valve and Solenoid Valve and Accumulator and Pilot Valve and Unloading" revealed JP2004149046. In a hydraulic suspension control system, during initial operation, the pilot-operated switch valve in the drain channel must be opened quickly and reliably to achieve vehicle attitude control. The controller stores the oil discharged by the hydraulic pump and controls the solenoid valve according to the vehicle's driving status to supply and discharge oil to the hydraulic cylinders for attitude control. The pressure of the system accumulator controls the opening and closing of the unloading valve, maintaining the system accumulator pressure within a specified range. When the system stops, if the system accumulator pressure drops, the pilot-operated check valve in the drain channel closes, maintaining vehicle height. During initial operation, by temporarily increasing the unloading pressure to raise the system accumulator pressure, the pilot-operated check valve can be opened quickly and reliably, thereby achieving vehicle attitude control.

[0087] On December 15, 2025, a search was conducted on the website of the Japan Patent Office (https: / / www.j-platpat.inpit.go.jp / ) for the search term "Hydraulic and Check Valve and Solenoid Valve and Accumulator and Pilot Valve and Unloading", but no relevant literature was found.

[0088] It is completely different from the concept of this patent. Utility Model Content

[0089] The purpose of this utility model is to provide a device for instantaneous and efficient oil source loading with better results. The specific purpose is explained in the several substantive technical effects in the specific implementation section.

[0090] To achieve the above objectives, the present invention adopts the following technical solution:

[0091] A device for instantaneous and efficient oil source loading is provided, characterized in that:

[0092] The device includes an oil tank 1, which is connected to a control valve section. The control valve section includes a solenoid directional valve DT16, a one-way speed control valve 7, a cartridge pilot valve 8, and a solenoid directional valve DT214.

[0093] Solenoid directional valve 1 DT16 and solenoid directional valve 2 DT214 are two two-position three-way control valves; one-way speed control valve 7 is an adjustable one-way throttle valve; cartridge pilot valve 8 is an unloading valve that can realize unloading function; solenoid directional valve 2 DT214 is connected back to oil tank 1.

[0094] The control valve section is connected to the actuator section.

[0095] A further technical solution of this utility model is that the actuator part includes a loading actuator 9, in which a large rod cavity 91 and a small rod cavity 92 are arranged, and an accumulator is installed at the oil port of the small rod cavity of the actuator.

[0096] A further technical solution of this utility model is that the oil tank 1 is connected to the oil pump 2, the oil pump 2 is connected to the one-way valve 3 and then to the oil filter 4; the oil tank 1 is also connected to the electromagnetic switch valve 15 and the overflow valve 16.

[0097] A further technical solution of this utility model is that the actuating cylinder has a diameter of 145mm, the large rod has a diameter of 75mm, and the small rod has a diameter of 65mm.

[0098] A further technical solution of this utility model is that a tension sensor 10 is arranged in the actuating cylinder part, and the tension sensor 10 is a spoke-type sensor.

[0099] A further technical solution of this utility model is that the oil source adopts a bulk layout, the oil pump 2 of the oil source is a motor pump set, the pressure regulating oil filter assembly is the oil filter 4, the oil tank, oil pump 2 and oil filter 4 are respectively placed on the chassis of the traction rod force adjustment device, and the three parts are connected by a combined conduit to provide a hydraulic power source for the traction rod force adjustment device; the actuating cylinder part is the actuating cylinder of the traction rod force adjustment device.

[0100] A further technical solution of this utility model is that an air filter 17, a liquid level and liquid temperature gauge 18, and a temperature sensor 11 are provided on the oil tank.

[0101] The liquid level and temperature gauge 18 is used to observe the liquid level and oil temperature, the air filter 17 is used for refueling the oil tank and communication with the atmosphere, and the temperature sensor 11 is used for remote oil temperature detection.

[0102] A further technical solution of this utility model is that the motor pump set provides the system with the required high-pressure oil, driven by a dedicated single-phase asynchronous motor, and a shock-absorbing pad is installed under the motor mounting base; the oil filter uses a 10μm large filter screen for precision filtration to ensure the cleanliness of the working oil.

[0103] A further technical solution of this utility model is that the oil filter has a built-in check valve, which can improve the safety of the system oil circuit; the overflow valve is used to set the maximum working pressure of the plunger pump and plays a safety protection role; the pressure gauge displays the oil supply pressure.

[0104] A further technical solution of this utility model is that the loading actuator 9 is connected to the accumulator, a throttling orifice is installed between the accumulator and the loading actuator 9, and the housing of the control valve part is made of aluminum alloy.

[0105] The present invention, which adopts the above technical solution, has the following advantages over the prior art: Bulk layout (motor pump set, pressure regulating oil filter assembly, and oil tank are arranged separately): connected by combined conduits, it fits the chassis space of the traction rod force adjustment device, while eliminating the need for couplings and common base plates. With the addition of shock-absorbing pads, it reduces operating noise and facilitates maintenance; 10μ precision oil filter + one-way valve protection: ensures oil cleanliness, and the one-way valve prevents oil circuit interruption when the filter element is contaminated, improving system reliability. Attached Figure Description

[0106] To further illustrate this utility model, the following description is provided in conjunction with the accompanying drawings:

[0107] Figure 1 This is a layout diagram of the overall utility model;

[0108] Figure 2 This is a schematic diagram of the lower part of the utility model;

[0109] Figure 3 The hydraulic oil part of the utility model is... Figure 1 The top view of the structure below;

[0110] Figure 4 This is a front view of the hydraulic oil component of the utility model.

[0111] Figure 5 The actuator cylinder assembly of the restraining rod force adjustment device, i.e. Figure 1 The structural diagram of the upper part;

[0112] Figure 6 The actuator cylinder assembly of the restraining rod force adjustment device, i.e. Figure 1The structural diagram of the upper part;

[0113] Figure 7 for Figure 1 The middle part is the schematic diagram of the control valve block;

[0114] Figure 8 For Figure 1 The structural diagram of the middle part, i.e., the control valve block;

[0115] Among them: 1-oil tank, 2-oil pump, 3-one-way valve, 4-oil filter, 5-pressure gauge, 6-solenoid directional valve DT1, 7-one-way speed control valve, 8-cartridge pilot valve, 9-loading actuator, 10-tension sensor, 11-temperature sensor, 12-accumulator, 13-pressure sensor, 14-solenoid directional valve DT2; 15-solenoid switch valve, 16-relief valve; 91-large rod chamber; 92-small rod chamber; 17-air filter; 18-liquid level and temperature gauge. Detailed Implementation

[0116] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention. In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in the present invention can be understood according to the specific circumstances.

[0117] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0118] This patent provides multiple parallel solutions; the different descriptions represent improved or parallel solutions based on a basic solution. Each solution has its own unique characteristics. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other. Fixing methods not described herein can be any type of fixing, such as threaded fixing, bolt fixing, or adhesive bonding.

[0119] Example 1: Referring to all the accompanying drawings; a device for instantaneous and efficient oil source loading is provided, characterized in that,

[0120] The device includes an oil tank 1, which is connected to a control valve section. The control valve section includes a solenoid directional valve DT16, a one-way speed control valve 7, a cartridge pilot valve 8, and a solenoid directional valve DT214.

[0121] Solenoid directional valve 1 DT16 and solenoid directional valve 2 DT214 are two two-position three-way control valves; one-way speed control valve 7 is an adjustable one-way throttle valve; cartridge pilot valve 8 is an unloading valve that can realize unloading function; solenoid directional valve 2 DT214 is connected back to oil tank 1.

[0122] The control valve section is connected to the actuator section. The actual technical effect and its implementation process—that is, its basic function and non-obvious aspects—are as follows:

[0123] Start the motor pump unit, i.e., oil pump 2, and energize the overflow solenoid valve, i.e., solenoid switch valve 15, after a 6-second delay, and the hydraulic pressure rises to 21 MPa.

[0124] When the electromagnetic reversing valve DT214 is energized, pressure is supplied to the left chamber of the actuator assembly, causing the piston rod of the actuator assembly to extend fully.

[0125] To improve the loading dynamics of the actuator, an asymmetric double-rod actuation is adopted, and two 4L high-pressure accumulators are added to the actuation mechanism. During loading, DT1 and DT2 are simultaneously powered, and the actuator ends are connected to the oil supply. The pressurized oil at both ends of the actuator piston rod acts on the annular area of ​​the larger rod cavity, which is slightly smaller than that of the smaller rod cavity, to eliminate assembly gaps. At the same time, the two accumulators are pressurized with oil. After the accumulators are pressurized, DT1 is de-energized, and the larger rod cavity is connected to the return oil to release pressure, triggering the unloading valve to open, further increasing the return oil flow area and reducing flow resistance. At this time, the pressurized oil in the accumulator flows rapidly to the smaller rod cavity, driving the actuator. The dynamic response during the modification process is very fast, and the force loading rate can reach 10000KN / S.

[0126] In the conventional method, oil returns to both ends of the actuator. When the actuator needs to work, pressure is supplied to the small rod chamber, which is to supply power to DT2. The oil pressure in the small rod chamber of the actuator has a response process of zero oil supply pressure. Since the working fluid is compressible, the time for the pressure to build up in the small rod chamber from the oil supply connection is relatively long, which cannot meet the loading rate requirements.

[0127] When the solenoid directional valve DT16 is energized and the solenoid directional valve DT214 is kept energized, the left and right chambers are simultaneously supplied with a pressure of 21 MPa. At this time, since the annular area of ​​the left chamber of the actuator assembly is smaller than that of the right chamber, the actuator assembly retracts until the restraining rod reaches the pre-tension state. At the same time, during the pre-tension, the accumulator 12 is pressurized and the pressure sensor 13 collects the pressure signal.

[0128] When high dynamic and high load loading is required, the second solenoid directional valve DT214 is kept powered, while the first solenoid directional valve DT16 is de-energized. This triggers the opening of the pilot-operated unloading valve, i.e., the cartridge pilot valve 8, causing rapid depressurization of the left chamber of the actuator. The right chamber is then rapidly pressurized through the accumulator 12, thus providing high dynamic and high load loading. The tension value is monitored by the spoke-type sensor, i.e., the tension sensor 10.

[0129] The oil source is designed with a bulk layout, consisting of three parts: a motor pump unit, a pressure regulating oil filter assembly, and an oil tank 1. These are each placed on the chassis of the traction rod force adjustment device, and the three parts are connected by a combined conduit to provide hydraulic power to the traction rod force adjustment device. Its main technical parameters are as follows: a) Working pressure: 0-21 MPa; b) Rated flow rate: 5 L / min; c) Power supply: 380V / 50Hz; d) Equipped with a liquid level and temperature gauge 18 to observe the liquid level and oil temperature, an air filter 17 for oil tank 1 refilling and atmospheric communication, and a temperature sensor 11 for remote oil temperature detection.

[0130] The oil source mainly consists of an oil tank 1 body, an air filter 17, a liquid level and temperature gauge 18, a temperature sensor 11, an oil pump 2 motor unit, a one-way valve 3, an oil filter 4, a solenoid valve, an overflow valve 16, a pressure gauge 5, a pressure regulating oil filter assembly seat, and a combination conduit, etc. The hydraulic principle and composition of the oil source are shown in the figure.

[0131] Oil Tank 1 and Accessories—Oil Tank 1 is an open-type stainless steel tank (06Cr19Ni10), equipped with an air filter 17, an oil filler port that communicates with the atmosphere, a liquid level and temperature gauge 18 to observe the liquid level, and a temperature sensor 11 to detect the temperature of oil tank 1, triggering an alarm when the oil temperature is too high. Motor-Pump Set—Provides the system with the required high-pressure oil. The design uses a dedicated single-phase asynchronous motor (2) to drive a low-noise high-pressure plunger pump, eliminating the need for couplings, pump supports, and common base plates. A shock-absorbing pad is installed under the motor mounting base, saving installation space and reducing noise. Oil Filter 4—The system uses a 10μ precision filter to ensure the cleanliness of the working oil. Furthermore, if the filter element becomes contaminated, it can be cleared through the built-in check valve of Oil Filter 4, improving the safety of the system's oil circuit. Overflow Valve 16—Used to set the maximum working pressure of the plunger pump, providing safety protection. Solenoid Valve—Used to adjust the system's oil supply pressure and for emergency unloading. Pressure Gauge 5—Displays the oil supply pressure.

[0132] Control valve block design: The control valve block mainly consists of one unloading valve, namely a cartridge pilot valve 8, one adjustable one-way throttle valve, namely a one-way speed control valve 7, two two-position three-way control valves, namely solenoid directional valve 1 DT16 and solenoid directional valve 2 DT214, and a housing. The electromagnetic directional valve DT16 is selected as model 4WE6D-L6X / EG24NZ5L, with plate connection, maximum working pressure of 35MPa, rated flow of 8L / min, and working voltage of 24VDC; the adjustable one-way throttle valve, also known as one-way speed control valve 7, is model DRVP6-1-10, with plate connection, maximum working pressure of 35MPa, and adjustable rated flow of 0-14L / min; the one-way valve 3 has an opening pressure of 0.05MPa; the unloading valve assembly, also known as cartridge pilot valve 8, is model TJ025-0 / 0011-2, cartridge type, with a maximum working pressure of 31.5MPa, an opening pressure of 0.05MPa, and a nominal diameter of 25mm.

[0133] The housing is made of 2A12 aluminum alloy. The installation and interface dimensions of the following components are rationally arranged: electromagnetic directional valve DT16, electromagnetic directional valve DT214, adjustable one-way throttle valve (i.e., one-way speed control valve 7), and unloading valve (i.e., cartridge pilot valve 8). The design includes structural parameters such as oil circuit, oil circuit interfaces, and installation dimensions. The instantaneous loading rate is 3000 kN / s, and the maximum load is 290 kN.

[0134] The core distinguishing technical features and corresponding advantages of this utility model are as follows:

[0135] The motor pump unit, pressure regulating oil filter assembly, and oil tank are arranged separately in a bulk layout: connected by combined conduits, which can be adapted to the chassis space of the traction rod force adjustment device, while eliminating the need for couplings and common base plates. With the addition of shock-absorbing pads, the operating noise is reduced and maintenance is easier.

[0136] Dual-chamber pressure supply pre-tightening + accumulator synchronous charging: The large / small rod chambers are simultaneously supplied with 21MPa pressure, and the area difference is used to eliminate the clamping gap of the restraining rod to ensure loading accuracy. The accumulator synchronously stores pressure to reserve energy for instantaneous loading.

[0137] Pilot unloading valve + accumulator coordinated loading: After triggering, the left chamber is quickly depressurized and the right chamber accumulator is instantly pressurized, achieving a high dynamic loading rate of 3000KN / s to meet the stringent time requirements of the restraint rod force adjustment.

[0138] Throttling orifice design between actuator and accumulator: Precisely controls the loading rate, avoids damage to the restraint rod due to excessive loading, and improves system safety;

[0139] 10μ precision oil filter + one-way valve protection: ensures oil cleanliness, and the one-way valve prevents oil circuit interruption when the filter element is contaminated, improving system reliability.

[0140] Precisely adapted to high dynamic and high load scenarios: 3000KN / s instantaneous loading rate and 290KN maximum load are technical specifications that are not covered by CN119911318A / 2, specifically designed to solve the "instantaneous high load" requirement of the restraint rod force adjustment.

[0141] A collaborative design that balances accuracy and safety: Dual-cavity pre-tightening eliminates gaps and improves loading accuracy + throttling orifice speed control improves safety + precision filtration improves reliability, forming a closed-loop optimization. CN119911318A / 2 only focuses on a single function of energy saving / buffering and does not have a multi-objective collaborative design.

[0142] High adaptability of layout to scene: The bulk layout fits the chassis structure of the restraint rod force adjustment device, which saves space and is easy to maintain. The integrated dual pump design of CN119911318A and the motor side installation design of CN205047558U cannot adapt to the layout requirements of tooling equipment.

[0143] Example 2: As a further possible improvement, parallel solution, or optional independent solution, the actuator section includes a loading actuator 9, which contains a large rod chamber 91 and a small rod chamber 92. The accumulator is installed at the oil port of the small rod chamber. The substantial technical effect and its implementation process, i.e., the basic function and non-obvious aspects, are as follows: The actuator section consists of an accumulator 12, a pressure sensor 13, a force sensor (i.e., a tension sensor 10), a front end cover, a rear end cover, a piston rod, and seals. The actuator cylinder diameter is 145mm, the large rod diameter is 75mm, and the small rod diameter is 65mm. The accumulator 12 is installed at the oil port of the small rod chamber 92. A pressure of 21MPa is simultaneously supplied to both the large rod chamber 91 and the small rod chamber 92. The gap is eliminated after the restraining rod is installed by the area difference between the large rod chamber 91 and the small rod chamber 92. The accumulator 12 is connected to the actuator section through a mounting block. The actuator section has a simple structure, high reliability, and is easy to maintain.

[0144] When the actuator cylinder assembly supplies pressure to the large rod chamber 91 and the small rod chamber 92 receives oil return, the piston rod moves towards the small rod chamber 92 to adjust the clamping position of the restraining rod. When the actuator cylinder's large rod chamber 91 and small rod chamber 92 are both supplied with 21 MPa of pressure, the accumulator 12 is simultaneously charged. Because the areas of the large rod chamber 91 and small rod chamber 92 are unequal, the actuator cylinder moves towards the large rod chamber 91 to eliminate the gap generated during restraining rod clamping.

[0145] After the accumulator 12 is fully charged, it outputs a signal through the pressure sensor 13. Simultaneously, the small rod chamber 92 of the actuator continues to supply pressure at 21 MPa, and when the large rod chamber 91 quickly reconnects to the oil, it provides the release force for the restraining rod. A throttling orifice is installed between the accumulator 12 and the actuator, primarily for safety reasons, to prevent damage to the restraining rod due to high loading rates. The size of the throttling orifice is determined during equipment debugging. The restraining rod in this embodiment is an example and a preferred embodiment; similar implementation structures are all within the scope of protection of this patent. The restraining device (also known as a stress tenon or holdback bar) is a key safety device in the aircraft carrier catapult system. Its function is similar to the aircraft's "handbrake," firmly locking the aircraft on the catapult track before launch, and automatically releasing it only when the engine thrust and catapult force reach predetermined values. "Stress tenon" vividly describes its working principle of achieving mortise and tenon connection and release by bearing specific stress (tension). English name: Holdback bar or Arresting bar; core function: to provide reliable locking before the catapult launch of carrier-based aircraft, ensuring that the aircraft is released only when the engine reaches full thrust, and avoiding accidental slippage.

[0146] Example 3: As a further improvement, parallel, or optional independent solution, oil tank 1 is connected to oil pump 2, oil pump 2 is connected to check valve 3, and then to oil filter 4; solenoid switch valve 15 and overflow valve 16 are also connected to oil tank 1. The substantial technical effects and implementation process, i.e., the basic functions and non-obvious aspects, are as follows: Specific connection relationships are provided, see reference. Figure 1 .

[0147] Example 4: As a further improvement, parallel, or optional independent solution, the actuator cylinder diameter is 145mm, the large rod diameter is 75mm, and the small rod diameter is 65mm. The substantial technical effects and implementation process, i.e., the basic functions and non-obvious aspects, are as follows: similar dimensions are all within the protection scope of this patent.

[0148] Example 5: As a further improvement, parallel solution, or optional independent solution, the actuating cylinder is equipped with a tension sensor 10, which is a spoke-type sensor. The substantial technical effect and its implementation process, i.e., the basic function and non-obviousness, are as follows: Similar implementation structures are all within the protection scope of this patent.

[0149] Example 6: As a further improvement, parallel, or optional independent solution, the oil source adopts a bulk layout. The oil pump 2 is a motor pump unit, and the pressure regulating oil filter assembly is the oil filter 4. The oil tank, oil pump 2, and oil filter 4 are respectively placed on the chassis of the traction rod force adjustment device. The three parts are connected by a combined conduit to provide a hydraulic power source for the traction rod force adjustment device; the actuating cylinder part is the actuating cylinder of the traction rod force adjustment device. The substantial technical effect and its implementation process, i.e., the basic function and non-obviousness, are as follows: the decentralized layout saves many components.

[0150] Example 7: As a further improvement, parallel, or optional independent solution, the oil tank is equipped with an air filter 17, a liquid level and temperature gauge 18, and a temperature sensor 11.

[0151] The liquid level and temperature gauge 18 is used to observe the liquid level and oil temperature, the air filter 17 is used for refueling the oil tank and communication with the atmosphere, and the temperature sensor 11 is used for remote oil temperature detection.

[0152] Example 8: As a further improvement, parallel, or optional independent solution, the oil filter has a built-in check valve to improve the safety of the system's oil circuit; the relief valve is used to set the maximum working pressure of the plunger pump, providing safety protection; the pressure gauge displays the oil supply pressure. The loading actuator 9 is connected to the accumulator, and a throttling orifice is installed between the accumulator and the loading actuator 9. The housing of the control valve is made of aluminum alloy. The motor pump unit provides the system with the required high-pressure oil, driven by a dedicated single-phase asynchronous motor, with a shock-absorbing pad installed under the motor mounting base; the oil filter uses a 10μm large filter screen for precision filtration to ensure the cleanliness of the working oil.

[0153] Innovatively, each of the above effects exists independently, yet a single structure can be used to combine the results.

[0154] It should be noted that the multiple modules in this patent are an integration of existing technology modules and do not involve any new modules. Even if some modules use programs, those programs are undoubtedly known programs.

[0155] It should be noted that the multiple solutions provided in this patent include their own basic solutions, which are independent of each other and do not restrict each other. However, they can also be combined with each other without conflict to achieve multiple effects.

[0156] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims.

Claims

1. A device for providing instantaneous and efficient oil source loading, characterized in that, The device includes an oil tank (1), which is connected to a control valve section. The control valve section includes a solenoid directional valve DT1 (6), a one-way speed control valve (7), a cartridge pilot valve (8), and a solenoid directional valve DT2 (14). Electromagnetic directional valve DT1 (6) and electromagnetic directional valve DT2 (14) are two two-position three-way control valves; one-way speed control valve (7) is an adjustable one-way throttle valve; cartridge pilot valve (8) is an unloading valve that can realize unloading function; electromagnetic directional valve DT2 (14) is connected back to oil tank (1); The control valve section is connected to the actuator section.

2. The device for providing instantaneous and efficient oil source loading as described in claim 1, characterized in that, The actuator section includes a loading actuator (9), in which a large rod cavity (91) and a small rod cavity (92) are arranged, and an accumulator is installed at the oil port of the small rod cavity of the actuator.

3. The device for providing instantaneous and efficient oil source loading as described in claim 1, characterized in that, The oil tank (1) is connected to the oil pump (2), the oil pump (2) is connected to the check valve (3) and then to the oil filter (4); the oil tank (1) is also connected to the solenoid switch valve (15) and the overflow valve (16).

4. The device for providing instantaneous and efficient oil source loading as described in claim 1, characterized in that, The actuator cylinder diameter is 145mm, the main rod diameter is 75mm, and the secondary rod diameter is 65mm.

5. The device for providing instantaneous and efficient oil source loading as described in claim 1, characterized in that, The actuator cylinder is equipped with a tension sensor (10), which is a spoke-type sensor.

6. The device for providing instantaneous and efficient oil source loading as described in claim 1, characterized in that, The oil source adopts a bulk layout. The oil pump (2) of the oil source is a motor pump group and the pressure regulating oil filter assembly is the oil filter (4). The oil tank, oil pump (2) and oil filter (4) are respectively placed on the chassis of the traction rod force adjustment device. The three parts are connected by a combined conduit to provide a hydraulic power source for the traction rod force adjustment device. The actuator part is the actuator of the traction rod force adjustment device.

7. The device for providing instantaneous and efficient oil source loading as described in claim 1, characterized in that, An air filter (17), a liquid level and temperature gauge (18), and a temperature sensor (11) are installed on the oil tank. The liquid level and temperature gauge (18) is used to observe the liquid level and oil temperature, the air filter (17) is used for refueling the oil tank and communicating with the atmosphere, and the temperature sensor (11) is used for remote detection of oil temperature.

8. The device for providing instantaneous and efficient oil source loading as described in claim 5, characterized in that, The motor-pump unit provides the system with the required high-pressure oil. The oil pump is driven by a dedicated single-phase asynchronous motor, and a shock-absorbing pad is installed under the motor mounting base. The oil filter uses a 10μm large filter screen for precision filtration to ensure the cleanliness of the working oil.

9. The device for providing instantaneous and efficient oil source loading as described in claim 7, characterized in that, The oil filter has a built-in check valve, which can improve the safety of the system oil circuit; the relief valve is used to set the maximum working pressure of the plunger pump and plays a safety protection role; the pressure gauge displays the oil supply pressure.

10. The device for providing instantaneous and efficient oil source loading as described in claim 7, characterized in that, The loading actuator (9) is connected to the accumulator. A throttling orifice is installed between the accumulator and the loading actuator (9). The housing of the control valve part is made of aluminum alloy.

Images