300 results about "Oil pressure" patented technology

A safe valve can work stably in high and low temperature environment. It relates to the field of safe valve. The existing safe valve causes the steel ball to be stuck due to unreasonable structure, which seriously affects the normal operation of the lubricating oil system. The utility model discloses a safe movable shell, a nut, a sealing ring, a spring, a steel ball, a spring seat, an oil inlet and an oil outlet. The safe movable shell is provided with an oil inlet and an oil outlet respectively. The safe movable shell is fixedly connected with the nut. The sealing ring is arranged between the safe movable shell and the nut. The spring seat is arranged on the end of the nut close to the steel ball. The spring seat is connected with the safe movable shell and the nut respectively. The spring is arranged between the spring seat and the steel ball. The steel ball is assembled in the oil inlet of the safe movable shell through clearance fit and between the spring. The steel ball is pushed by the lubricating oil pressure. The steel ball pushes the spring to compress the spring. The opening and closing of the oil inlet by the steel ball are realized. The utility model is applied to the field of safe valve of lubricating oil system.

The application discloses a compressor lubricating oil path system, and belongs to the technical field of compressor lubrication, which comprises a lubricating oil tank, an oil conveying assembly, a cooling assembly and a filtering assembly, wherein the cooling assembly comprises a first cooler and a second cooler, and the filtering assembly comprises a first filter and a second filter; a first branch is arranged between the inlets of the first cooler and the second cooler, the second outlets of the first cooler and the second cooler are connected to a first backflow branch, and the first backflow branch is communicated to the lubricating oil tank; a second branch is arranged between the inlets of the first filter and the second filter, the second outlets of the first filter and the second filter are connected to a second backflow branch, and the second backflow branch is communicated to the lubricating oil tank. The application guarantees that the standby equipment is still full of lubricating oil in the standby state, and guarantees that the lubricating oil in the standby equipment is in a circulating flow state in the normal working process, thereby solving the problems of oil pressure fluctuation and oil temperature fluctuation existing in equipment switching.

A piston positioning mechanism includes a resilient retainer disposed in an annular groove on the outside of the piston, the resilient retainer engaging the wall of the bore of the piston to create a resistance to movement of the piston within the bore, the resistance to movement maintaining the piston in a retracted position within the bore, the retracted position being one in which the piston is clear of the engine valves. The embodiment eliminates the need for a conventional piston return spring, reduces the height of the piston mechanism, and reduces the opening oil pressure of the piston.

The application relates to the technical field of transformers, in particular to a high-reliability power transformer which comprises a transformer main body, an oil pillow and a corrugated mechanism, an oil cavity is arranged in the transformer main body, the oil cavity is filled with transformer oil, and the oil pillow is arranged at the top of the transformer main body. The first corrugated pipe, the second corrugated pipe, the flange connecting piece and the length limiting assembly are arranged, under the action of the length limiting assembly, the multiple second corrugated pipes are sequentially compressed from the floating end, and the elastic force generated by the compression of the second corrugated pipe directly acts between the two flange connecting pieces connected by the second corrugated pipe when the length of the second corrugated pipe is compressed to the preset value, instead of directly acting on the transformer oil as in the prior art, so that the application can significantly reduce the oil pressure required when the volume of the transformer oil in the oil pillow is increased to the preset volume, thereby achieving the purpose of enhancing the adjustment and compensation effect of the corrugated mechanism on the oil pressure.

The application discloses a bidirectional hydraulic feedback type tension-torsion static pressure bearing mechanism, relates to the tension-torsion test technical field, and oil is supplied to two symmetrical static pressure oil cavities through a bidirectional hydraulic feedback type throttler; during work, oil flows to the liquid inlet of two liquid inlet guide columns, and part of oil from one liquid inlet guide column flows to the oil cavity through a liquid inlet throttling hole to form pressure oil, and the other part of oil flows to the oil cavity through a liquid outlet gap to release pressure; when the bearing rotating shaft approaches a certain static pressure oil cavity, the oil pressure of the corresponding oil cavity rises, the elastic diaphragm is pushed up to the other side to be elastically deformed, the distance between the elastic diaphragm and the other liquid inlet guide column is reduced, more oil flows to the liquid inlet throttling hole, the oil pressure of the other oil cavity is raised, the elastic diaphragm is reversely pushed back, and then the bearing rotating shaft is reversely pushed back, so that the bearing rotating shaft is in a balanced state, the deviation correction operation can be automatically completed, friction is reduced, the real modal response of the measured object can be truly reflected, and the service life is prolonged.

The utility model discloses a kind of selectable valve core reset device, access oil pressure control system and emergency shutdown valve hydraulic control system, and is equipped with three oil paths: the first two access oil tank of oil pressure control system, the third access its oil pressure accumulator, dry road is equipped with electric valve and has multiple branch lines afterwards.Device contains switch control valve, auxiliary booster mechanism, hydraulic feedback mechanism, double filter, digital valve, proportional valve, proportional digital switching valve, auxiliary switching valve, two hydraulic control reversing valves and two travel switches, etc., and is connected into complete control and execution system by pipeline.It can be switched digital valve and proportional valve control mode by proportional digital switching valve, adapt to different working conditions;With hydraulic control reversing valve and travel switch cooperation, realize oil path accurate control and valve core reset monitoring feedback, improve accuracy;It is also equipped with main matching position sensor, manual valve etc., enhance system stability and controllability, can guarantee valve core reset reliable under complex working condition, improve oil pressure pump oil conveying system overall efficiency and reliability.

The utility model provides a kind of electric core tray lifting trolley, it is related to electric core transport technical field, existing trolley, lack of lifting function, cannot realize the butt joint of different height, it is not enough convenient when artificial feeding and discharging, time-consuming and labor-consuming problem.The utility model includes the car frame main part for placing electric core tray, the oil pressure jacking mechanism for driving car frame platform lifting and the oil pressure jacking execution piece for executing the up-down movement of oil pressure jacking mechanism are arranged in the lower part of car frame main part;The car frame main part includes car frame platform, upper support frame, lower support frame, the car frame platform is remotely connected with upper feeding and discharging door in the end surface of oil pressure jacking execution piece, and the upper surface of car frame platform is concave and is provided with a plurality of roller cylinders parallel with upper feeding and discharging door.The utility model has the beneficial effect that: it can realize the butt joint of different height, increase roller cylinder rolling function and left and right nylon guiding function, facilitate feeding and discharging, save manpower.

Transmission device provided between a drive shaft (39) coupled to a drive wheel (19) and a motor shaft (55) coupled to a traction motor (16), wherein the transmission device (12) comprises the following: - a first engagement mechanism (60) for switching, using operating oil, a first power transmission path provided between the drive shaft (39) and the motor shaft (55) between a power transmission state and a power blocking state; - a second engagement mechanism (61) for switching, using operating oil, a second power transmission path provided between the drive shaft (39) and the motor shaft (55) between a power transmission state and a power blocking state; - an oil passage switching valve (83) provided between an oil pressure supply source (81) and the first and second engagement mechanisms (60, 61), and switching between a state in which operating oil is directed to the first engagement mechanism (60) and a state in which the operating oil is directed to the second engagement mechanism (61); and - an output control valve (82) provided between the oil pressure supply source (81) and the oil passage changeover valve (83) and switching between a connected state in which operating oil can pass from the oil pressure supply source (81) through the output control valve (82) to the oil passage changeover valve (83) and a blocked state in which the operating oil is blocked from the oil pressure supply source (81) to the oil passage changeover valve (83) and is discharged through the oil passage changeover valve (83); wherein the oil passage switching valve (83) is designed in such a way as to ensure that operating oil is not supplied to the first engagement mechanism (60) and the second engagement mechanism (61) simultaneously.

The utility model discloses an integrated type swing cycle pump lubricating device, including pump casing, inner rotor and outer rotor, be provided with oil cavity and with oil inlet and oil outlet of oil cavity communication on the pump casing, its characterized in that, the bottom of oil cavity is provided with annular unloading groove with oil outlet communication, and the bottom surface of annular unloading groove is multistage step surface. This integrated type swing cycle pump lubricating device can effectively buffer fluid resistance and pulsation, reduce cavitation and cavitation erosion phenomenon, and stabilize oil pressure of oil outlet.

The present application relates to the technical field of hydraulic pressure, in particular to a multi-way valve and a hydraulic system for controlling sequential action. A multi-way valve for controlling sequential action of at least two execution elements, comprising at least two working links, the working links are arranged corresponding to the execution elements, the working links comprise: a control valve for controlling action of the corresponding execution element; a pilot valve arranged corresponding to the control valve, the pilot valve controls the pilot oil to flow into or out of the control valve; in the initial state, the pilot oil can flow into the control valve through the pilot valve, so that the control valve reverses to control the action of the corresponding execution element; after the corresponding execution element moves to the position, the oil pressure in the oil inlet cavity of the execution element rises to trigger the pilot valve to reverse, the pilot oil flows out through the reversed pilot valve, and is used as the pilot oil of the working link corresponding to the execution element for the next action. The technical problem of the prior art that the hydraulic system has many complicated hydraulic elements and oil paths, and the oil liquid through the sequence valve causes pressure loss is solved.

The utility model provides a kind of servo valve flow channel and servo valve, including valve core and valve sleeve;The servo valve flow channel includes the passage being set in the valve body inside servo valve, including inlet flow channel, oil return flow channel, first actuating port flow channel, second actuating port flow channel;Two cavities are arranged in the position of the length direction of the two ends of valve body inside close to valve sleeve, the valve body inside is also provided with balance passage, balance passage is used to connect the two cavities inside valve body, oil liquid in one cavity can flow to another cavity by balance passage when valve core is translated in valve sleeve;Utilize such a kind of servo valve flow channel and servo valve, by setting cavity and balance passage as control oil cavity and control channel in the two ends of valve sleeve, the pressure fluctuation when spool moves is reduced to controllable range, to balance two sides oil pressure, reduce rigid impact and valve core resistance.

This utility model relates to the field of horizontal jack manufacturing technology, and in particular to a differential pressure balanced oil discharge valve, a control valve assembly, and an electric pump station. The differential pressure balanced oil discharge valve is the core component for achieving smooth jack descent, and includes a valve body, a valve core assembly, a pressure balancing mechanism, and a drive assembly. The valve body has a first oil passage and a second oil passage; the inner valve core of the valve core assembly has a pressure balancing channel, and an elastic reset element provides initial sealing pre-tightening force; the pressure balancing mechanism seals the pressure balancing channel through a sealing body. The drive assembly employs a two-stage control: the first stage pushes the pusher to open the sealing body, initially connecting the first and second oil passages, balancing the oil pressure, and reducing the pressure difference of the inner valve core; the second stage directly acts on the inner valve core, causing it to overcome the pre-tightening force to fully connect the first and second oil passages, achieving smooth hydraulic oil return, ensuring stable and vibration-free jack descent, while reducing operating force and improving safety and convenience.

The present application relates to the technical field of building vibration reduction, and provides a liquid tuned mass damper and a design method, wherein the liquid tuned mass damper comprises a mass block, an elastic element and an oscillation plate; one end of the elastic element can be connected to a controlled structure, the mass block is connected to the other end of the elastic element; the oscillation plate is connected to the mass block; the oscillation plate and the elastic element have an included angle in the extension direction; and the oscillation plate can be immersed in a fluid. The liquid tuned mass damper can solve the problems that the existing tuned mass damper only generates inertial mass by the mass block, a mass block with a large mass is required, and a mechanical oil pressure damping element is required, resulting in high manufacturing cost, and the mass block is too heavy to cause a large static load on the controlled structure.

The present application relates to the field of oil filter, especially to a self-cleaning anti-clogging oil filter and method thereof, comprising: an oil shell, the bottom end of the oil shell is fixedly connected with a bottom plate, a plurality of notches are arranged in an annular array on the bottom plate, a filter cartridge is installed on the bottom plate, a filter core is sleeved on the filter cartridge, a top plate is arranged at the top end of the filter cartridge, and a check valve is arranged at the top end of the top plate, the filter core is blocked, the sealing cover moves downward under the action of oil pressure, the sealing of the filter net barrel is cancelled, the unfiltered oil flows into the filter cartridge through the filter net barrel, the impurities in the oil are filtered, the damage to the engine is avoided, when the engine stops working, the oil pressure decreases, the sealing cover is reset upward under the restoring force of the first spring, the filter net barrel is resealed, and the filtered impurities are sealed between the sealing cover and the filter net barrel, so that the impurities are prevented from falling on the filter core again.

The utility model relates to oil pressure cylinder technical field, and disclose a kind of steering gear shift oil pressure cylinder, including piston rod, the outside of piston rod is provided with pressing plate, the outer surface of pressing plate is fixedly installed with rotating plate, the inner wall of rotating plate is threadedly connected with two connecting rods, the outer surface of each connecting rod is all with the inner wall screw connection of pressing plate, the below of rotating plate is provided with fixed base plate, the upper surface of fixed base plate is provided with rotating groove, the outer surface of rotating plate and the inner side wall of rotating groove are contacted, the upper surface of fixed base plate is fixedly installed with driving motor, and the output of driving motor is fixedly installed with support shaft. The steering gear shift oil pressure cylinder, by being provided with piston rod, pressing plate, rotating plate, connecting rod, fixed base plate, rotating groove, driving motor and support shaft, utilize fixed base plate and rotating plate and other structures to fix the whole oil pressure cylinder, change the installation position of oil pressure cylinder, can play the role of the whole oil pressure cylinder is rotated and adjusted.

The application relates to the technical field of laser cutting, in particular to an intelligent manufacturing production line template laser cutting device, which comprises a device base frame and a cutting frame erected thereon; a two-dimensional motion system composed of a transverse displacement component and a lifting displacement component is arranged on the cutting frame, the system drives a device support provided with a laser cutting head and a front observation component to realize accurate positioning. The laser cutting head is integrated with double-sided limit supporting pieces which can be dynamically adjusted. A horizontal frame table with a track is arranged in the device base frame, a steering clamping end support table which can be driven to slide by an oil pressure pusher is arranged on the horizontal frame table, a steering clamping component with a rotating alignment function is arranged on the support table, and the steering clamping component cooperates with a fixed clamping component at the other end of the device base frame to realize workpiece clamping. The device guarantees cutting precision through a composite frame and a proximal stabilizing mechanism, realizes automatic positioning of the workpiece and error compensation by utilizing front visual observation to guide intelligent clamping and coordinate correction.

The present application relates to a kind of gap automatic compensation formula oil pressure sealing door.It includes: door body, rotating disc, hinge, battery, oil tank, oil pump, sealing piston, sealing ring, limit ring, two-way valve, sealing ball, small spring, oil cylinder, large spring;The axis of the door body, the sealing piston, the limit ring, the two-way valve, the sealing ball, the small spring, the oil cylinder and large spring are on a straight line.The present application is a kind of gap automatic compensation formula oil pressure sealing door, and the system is according to the gap change caused by thermal expansion and cold shrinkage, vibration, installation deviation etc., the oil pump automatically adjusts the size of constant pressure oil amount, so that the sealing piston is always pressed tightly box with constant pressure, adaptive dynamic adjustment;The oil pump only needs initial build pressure, and after build pressure, the sealing ball is closed under the joint action of the small spring pressure and oil pressure Oil hole of the two-way valve, realize pressure maintenance, the oil pump enters standby state, without frequently replacing vulnerable oil pressure parts, so that maintenance cost is reduced.

This utility model discloses a buffer-type integrated hydraulic cylinder for high-horsepower tractors, comprising a cylinder body, a cylinder bottom and a rod head respectively disposed at both ends of the cylinder body, a piston movably mounted inside the cylinder body, and a piston rod fixedly mounted to the piston to push the rod head. An oil passage mounting block is integrally mounted on one side of the top of the cylinder body, and the oil passage mounting block has an A oil passage port and a B oil passage port respectively. Both the A and B oil passage ports have buffer mechanisms installed at their extensions into the cylinder body. A rod head end cap is fixedly mounted at one end inside the cylinder body, and a buffer ring is fixedly mounted inside the rod head end cap. During the oil return process, the oil pressure squeezes the oil ring, forcing the returning hydraulic oil to return only from inside the extension, thereby reducing the pressure generated by the oil return and achieving a certain buffering effect on the piston, increasing the buffering capacity of the cylinder.

This invention discloses a control system for improving the safety of pile driver construction, comprising: a hydraulic oil tank, a hydraulic pump, a pressure reducing valve, a three-position four-way directional valve, a one-way hydraulic lock, a two-way hydraulic lock, a clamping cylinder, a pressure sensor, an instrument display, a controller, a self-resetting slide key, and a working device action switch. The controller is electrically connected to the hydraulic pump, the three-position four-way directional valve, the pressure sensor, the instrument display, the self-resetting slide key, and the working device action switch. The hydraulic oil tank is connected to the hydraulic pump, the pressure reducing valve, the three-position four-way directional valve, the one-way hydraulic lock, the two-way hydraulic lock, and the hydraulic cylinder in sequence via hydraulic pipelines. The pressure sensor is used to detect the oil pressure at the outlet of the one-way hydraulic lock. By adding a pressure sensor and sending the clamping pressure to the controller, and by adding judgment logic to the main controller to display the clamping oil circuit status on the instrument, and by adding judgment logic to the pile loosening action in the controller, safety accidents caused by operator error are reduced.

The utility model discloses a detachable aircraft fuselage keel joint belongs to air space aerospace spare part design technical field, include: upper connecting plate, lower connecting plate, positioning pin subassembly and hydraulic locking mechanism, the upper connecting plate is equipped with the taper positioning hole and the wedge guide groove, the lower connecting plate is equipped with the force sleeve of coaxial with taper positioning hole and the dovetail boss of with guide groove matching, positioning pin subassembly is by taper's head pin shaft and self -lubricating bushing constitutes, the head pin shaft is through positioning hole with force sleeve, hydraulic locking mechanism contains high pressure oil cavity, piston push and locking bolt, the piston push is driven after oil pressure and presses the side of dovetail boss, locking bolt is locked after the piston push. The utility model's keel joint has the advantages such as high positioning accuracy, locking reliable, convenient to dismantle.

The application relates to the technical field of drilling machines, and discloses an adjusting arm machining oil pressure automatic feed drilling machine, which comprises a machine table, an adjusting arm placing seat and a drilling machine body are fixedly arranged on the top of the machine table, a hydraulic cylinder is fixedly arranged at the bottom of the drilling machine body, a hydraulic telescopic rod is slidably arranged in the hydraulic cylinder, the bottom end of the hydraulic telescopic rod is located outside the hydraulic cylinder, a feed drilling mechanism is arranged at the bottom end of the hydraulic telescopic rod, and the feed drilling mechanism comprises a motor, a fixed box, a plurality of vertical shafts, a plurality of drill bits, a gear transmission assembly and a plurality of belt transmission assemblies. The application has the following advantages and effects: the adjusting arm can be subjected to multi-hole simultaneous drilling operation; compared with a traditional single-shaft drilling machine, the adjusting arm can be simultaneously machined at multiple hole positions, the single-piece machining time is greatly shortened, the adjusting arm is especially suitable for batch production scenes, the unit time yield is significantly improved, and the work efficiency is improved.

This invention discloses a server liquid cooling pump, a liquid cooling system, and its usage method, relating to the field of liquid cooling pump technology. The invention includes a motor unit, a motor heat dissipation unit, a hydraulic coupling transmission unit, and a coolant pumping unit. The motor unit includes a motor housing, a housing cover, and three motor modules. The motor heat dissipation unit includes a heat-conducting capillary tube, a converging tube, and a return main pipe. The housing cover has a hydraulic coupling chamber, in which the hydraulic coupling transmission unit is installed. The coolant pumping unit includes a pumping assembly and a pumping cylinder, the pumping cylinder being installed on the front end of the housing cover. The liquid cooling system includes coolant piping and a server liquid cooling pump, which is used for server liquid cooling. This invention achieves heat transfer oil circulation and heat dissipation through different oil pressures within the chamber via the hydraulic coupling transmission unit, and ensures motor stability by switching motors. This solves the problems of existing liquid cooling pumps, such as motor malfunctions during prolonged operation and the inability to promptly cut off coolant supply lines in case of malfunctions.

The utility model belongs to tooling technical field, concretely relates to a CVT gearbox driven wheel oil pressure test tooling, include: mounting sleeve seat, the inner bottom of mounting sleeve seat is provided with the bearing ring, ball bearing, ball bearing is installed in mounting sleeve seat, and ball bearing outer ring rests in bearing ring, locking nut, locking nut is located ball bearing top, seat cover, seat cover buckling in mounting sleeve seat top mouth department, and through connecting structure with mounting sleeve seat carry out firm assembly, seat cover top center is provided with the oil filler pipe, seat cover bottom center is provided with the butt joint pipe, the oil filler pipe is through -going with butt joint pipe, and the bottom peripheral wall of butt joint pipe is provided with sealing ring through the clamping structure, is used to solve the problem that the oil pressure test is not accurate when adopting the oil pressure leak detection machine to carry out the oil pressure test to driven wheel hydraulic cylinder, leads to the inaccuracy of oil pressure test when testing because of lacking some auxiliary tooling, also can not test the sealing property of sealing ring.

The present application provides a kind of transmission that can further reduce the excess amount of main pressure, the control method and program of transmission.The transmission is equipped with: primary pulley, secondary pulley, belt, oil pressure control circuit that regulates the oil supplied from oil pump to main pressure, main pressure detection sensor that detects main pressure, transmission controller that controls oil pressure control circuit.And, transmission controller selects the higher one of the target value of primary pulley pressure and the target value of secondary pulley pressure as target pulley pressure, sets target pressure difference variably according to oil temperature, sets the target value of main pressure, i.e.target main pressure, as the total pressure of target pulley pressure and target pressure difference, controls oil pressure control circuit so that the detected main pressure is regulated to target main pressure.

This invention relates to the field of motor rotor copper busbar processing technology, and discloses a control method and system for a wound-rotor rotor bar forming machine. The method includes: setting parameters such as the straight length of the bar, bending angle, initial end length, and rotor center position; adjusting the straight spacing, end position, and R-block size of the clamping plates; determining the pressure level and selecting a target pressure value; applying reverse balancing oil pressure through a pressure reducing valve to adjust part of the tensile force; controlling the clamping plates to clamp the bar, and then driving the first and second swing arms to rotate; collecting the angle values ​​of the first and second swing arms; when the angle value reaches the bending angle, controlling the power source to stop, and the first and second top-arc components cooperate to bend the bar into a motor rotor bar; after bending, driving the first and second swing arms to move outward and removing the bar. This application improves the equipment adjustment efficiency and bending angle accuracy.

This utility model relates to the field of valve technology, and more particularly to an ultra-high pressure shut-off valve. The utility model includes a test flange and a valve body. A connecting pipe is mounted on the top of the test flange, a lens gasket is mounted between the test flange and the connecting pipe, a valve seat sleeve is mounted above the connecting pipe, a guide bushing is mounted on the inner side of the valve body, a valve stem is slidably connected to the inner side of the guide bushing, and a packing sleeve is fixed to the inner side of the valve body. A packing assembly is located at the bottom end of the packing sleeve. This utility model provides an ultra-high pressure shut-off valve that uses a hydraulic cylinder as a power source to generate a thrust of 630 kN under 16 MPa hydraulic pressure, which is transmitted to the gland nut through a connecting disc and an elastic pin. The gland nut is connected to the guide bushing via a bracket, forming a rigid transmission chain that drives the valve stem to move linearly. This design utilizes the constant force characteristics of the hydraulic system to ensure stable opening and closing of the valve stem under high-pressure fluid conditions.

This utility model relates to the field of hot runner technology, and in particular to a hydraulic push-plate type cylindrical manifold synchronous injection molding system. It includes a synchronous injection module for achieving multi-cavity synchronous injection molding. The synchronous injection module includes: a main component, including a template mounted on the injection unit of an injection molding machine; side plates fixed at both ends of the top of the template; a cylindrical manifold module mounted between the two side plates; a locking heating coil fitted on the outer surface of the cylindrical manifold module; a feed nozzle assembly fixed at the front end of the cylindrical manifold module; a discharge nozzle assembly fixed at the upper end of the cylindrical manifold module; and a flow channel inside the cylindrical manifold module connecting the feed nozzle assembly and the discharge nozzle assembly. By using an integrated cylindrical manifold with 360° heating to ensure uniform temperature, symmetrical hydraulic cylinder drive and linear guide rail to achieve high-precision synchronous control of the valve needle, combined with a short injection path and pressure compensation design, the injection accuracy and stability of heat-sensitive materials are significantly improved.

The application relates to the technical field of automobile fault diagnosis, in particular to a hybrid power system fault processing method and device, a vehicle and a storage medium, wherein the method comprises the following steps: acquiring engine oil pressure and current operation data of a transmitter; determining engine oil pressure failure of an engine according to the engine oil pressure and the current operation data; identifying the hybrid power type of the vehicle, controlling the vehicle to perform a fault processing action according to the hybrid power type, and clearing a fault code corresponding to the engine oil pressure failure after the engine oil pressure failure is recovered. Therefore, the problems of untimely diagnosis, low fault repair pertinence and poor user experience in hybrid power system fault processing are solved.

The utility model relates to railway vehicle engineering technical field more specifically, especially, especially relates to a multipurpose four axle combined type railway locomotive bogie, include: traction seat, bogie frame, crossbeam, the bogie frame sets up in the both ends of traction seat, and crossbeam fixedly set up in the middle position of bogie frame body, secondary suspension spring is installed in the top of crossbeam, and secondary oil pressure shock absorber is installed on the outer wall of bogie frame both sides, and one end of secondary oil pressure shock absorber is movably connected with bogie frame, the utility model discloses the improvement of multipurpose four axle combined type railway locomotive bogie has good strength, long life, safe and reliable, high efficiency, can guarantee the high -efficient work of more safe and stable, most parts can also realize the commonality with the currently large -scale use locomotive, to save the advantage of use cost, thereby effectively solve the problem and the deficiency in prior art and equipment.

This utility model discloses an oil compensation structure and a vibration damper, solving the problems of numerous parts, complex assembly, and low oil replenishment efficiency in existing compensation structures. The oil compensation structure is a modular assembly consisting of an upper connecting ring, a compensation spring, a compensation valve block, and a lower connecting ring arranged coaxially. The upper connecting ring is nested with the compensation spring via a first connecting boss, and the lower end of the spring presses against the compensation valve block with an annular valve line, thus sealing the circumferential compensation hole of the lower connecting ring under normal conditions. One end of the lower connecting ring overlaps the side of the liquid storage cylinder, and the other end is inserted into the flanged hole of the intermediate cylinder via a second connecting boss with a sealing groove. During the compression stroke, oil pressure opens the compensation valve block, allowing oil to be quickly injected into the recovery chamber through the through hole, achieving dynamic pressure balance. By replacing the multi-stage baffle structure with a four-component direct-pressure seal, the number of parts is reduced, assembly efficiency is improved, valve life is effectively extended, and product qualification rate is increased.