376 results about "Hydraulic equipment" patented technology

The invention relates to a deep and large foundation pit supporting automatic monitoring early warning and dynamic adjusting system, and relates to the technical field of engineering monitoring, and the system comprises foundation pit supporting structure automatic monitoring devices which are disposed at the positions of all monitoring items of a foundation pit and are used for collecting real-time monitoring data; the monitoring data processing analysis and early warning platform is in communication connection with the monitoring device and is used for analyzing the real-time monitoring data and determining the risk level according to the displacement of the deformation value of the monitoring position exceeding the safety threshold value; the supporting structure automatic adjusting device is in communication connection with the early warning platform and comprises a control center and hydraulic equipment, the control center obtains risk data including the risk level, the risk position importance degree and the structure importance degree based on the deployment position of the monitoring device, and the hydraulic equipment controls and adjusts the length of the telescopic rod at the corresponding risk position in real time according to the risk data. The functions of real-time monitoring, early warning and dynamic adjustment of the supporting structure can be achieved, so that the safety and efficiency of foundation pit supporting construction are improved.

The invention provides a loading force control method for servo torque feed-forward and linear active disturbance rejection control, and belongs to the technical field of servo hydraulic equipment control. The method comprises the steps that a servo hydraulic tension pad dynamic model is constructed, and the servo torque feed-forward and linear active disturbance rejection control loading force is obtained based on the servo tension pad dynamic model and structural design parameters of a servo tension pad test bed; building a simulation model of the servo stretching pad; a simulation data set and an experiment data set are collected, the simulation data set and the experiment data set are combined, weighted and preprocessed, and a standardized feature matrix is obtained; constructing a servo feed-forward torque prediction model based on XGBoost, taking the standardized feature matrix as model input, and outputting a feed-forward torque; constructing a second-order system model of the servo stretching pad; and combining the feed-forward torque output by the servo feed-forward torque prediction model with the feedback torque calculated by the linear active disturbance rejection control to form a final torque instruction of the servo motor. According to the invention, the control precision and robustness of the loading force in the production process of the servo hydraulic stretching cushion are improved.

To inhibit temperature rise of a hydraulic fluid effectively to prevent seizure of a hydraulic pump.SOLUTION: A hydraulic device 4 includes: a hydraulic cylinder 10; and a hydraulic pressure supply / discharge device 5 which expands or contracts the hydraulic cylinder 10. The hydraulic pressure supply / discharge device has: a bypass oil passage B which is branched from a first oil passage 41 extending from the discharge side of a hydraulic pump 15 to a spool of a switching valve 16 and disposed so that its downstream end returns a hydraulic fluid to an oil tank 17; a bypass valve 19 which may open or close the bypass oil passage; and linkage means which links the spool and the bypass valve to each other. At least a part of the bypass oil passage B is formed in a bypass pipe 18 provided outside of casings 24, 31. The linkage means links the spool and the bypass valve to each other so that the hydraulic fluid discharged from the hydraulic pump flows through the bypass pipe when a switching position of the spool is in a neutral position and the hydraulic fluid discharged from the hydraulic pump does not flow through the bypass pipe when the switching position of the spool is in a lifted position.SELECTED DRAWING: Figure 5

A sealing device for hydraulic equipment according to the invention includes an outer member having an annular shape, an inner member inserted into the outer member, and a seal ring housed in an annular groove disposed in the outer circumference of the inner member and abutting on the outer member to prevent a liquid from passing through a gap between the outer member and the inner member. The annular groove of the inner member has a bottom portion including a recess for restraining axial displacement of the seal ring relative to the annular groove.

The utility model relates to a detachable hydraulic cylinder oil pipe structure, which belongs to the technical field of hydraulic equipment and comprises a hydraulic cylinder, a hydraulic oil pipe, a connecting seat, an input pipe and an oil pipe connector. And a sealing seat is fixedly mounted on the peripheral wall of the hydraulic oil pipe. According to the detachable hydraulic cylinder oil pipe structure, the detachable hydraulic cylinder oil pipe structure is connected with a hydraulic oil pipe under the action of the oil pipe connector and the connector, the sealing performance of connection of the hydraulic oil pipe is improved under the action of the sealing seat, and the hydraulic oil pipe is fixed under the action of the fixed base plate, the movable base plate, the limiting seat, the top plate and the fastening screw; and the hydraulic oil pipe is additionally limited under the action of the connecting block, the movable clamping seat, the fixed clamping seat, the limiting ring and the limiting baffle, so that the fixing stability of the hydraulic oil pipe is improved.

This construction machine is provided with: a flow rate control valve as a hydraulic device that adjusts the flow rate supplied to a hydraulic cylinder that drives a work device; and a control device that controls the hydraulic cylinder so as to satisfy the condition that the work tool moves without exceeding the target surface. The control device calculates a target speed of the hydraulic cylinder at which the work tool satisfies the condition on the basis of information on the target surface and detection information from a detection device that detects the orientation of the work device, and controls the work tool when the target value of the hydraulic device corresponding to the calculated target speed is less than a lower limit value at which the accuracy of flow control can be ensured. On the basis of the limited speed of the hydraulic cylinder obtained from the lower limit value, a target speed of the hydraulic cylinder at which the work tool satisfies the condition is re-calculated, and the hydraulic device is controlled by a target value corresponding to the re-calculated target speed.

This product is a counterweight that is attached to the back of the main body of heavy machinery such as forklifts and hydraulic excavators. This counterweight is configured to accommodate a pressure booster in a recess formed in the upper center of the front, and hydraulic equipment such as an accumulator on the top surface, and is also configured to allow the attachment of a cover to enclose the accumulator on the top surface.

The present application relates to the technical field of hydraulic equipment, and particularly relates to a cooling device of a large-flow hydraulic system, which comprises a tube shell, a plurality of cooling pipes and a plurality of baffles, the tube shell is internally provided with a water inlet cavity, an oil cavity and a water outlet cavity which are sequentially arranged and mutually isolated along the axial direction of the tube shell, the plurality of cooling pipes are arranged in the oil cavity and respectively communicated with the water inlet cavity and the water outlet cavity at two ends; the baffle is rotationally arranged in the oil cavity around the tube shell axis and arranged along the axial direction of the tube shell, the baffle is provided with an opening for hydraulic oil to pass through, and the opening is located on one side of the tube shell axis in the radial direction of the tube shell; the plurality of baffles are divided into two groups, the two groups of baffles are alternately arranged, and the projections of the openings on the two groups of baffles on the axial direction of the tube shell are symmetric about the center of the tube shell. The baffle is rotationally arranged, the flow trajectory of the hydraulic oil in the oil cavity is changed, the impact direction of the hydraulic oil on the cooling pipe is changed, the stable thermal boundary layer between the hydraulic oil and the cooling pipe is not easily formed, and the cooling effect of the hydraulic oil is improved.

The utility model relates to the technical field of hydraulic stations, in particular to a hydraulic station with a stable structure, which comprises an oil tank and a support frame, a shell is arranged on the left side of the top end wall of the support frame, an auxiliary oil tank is arranged on the right side of the top end wall of the support frame, and an oil guide pipe is arranged between the auxiliary oil tank and the oil tank for communication; a water removal device is arranged at the bottom in the shell, a vacuum pump is arranged on the left side of the inner bottom wall of the shell, and an air inlet pipe is arranged between the air inlet end of the vacuum pump and the water removal device for communication. The device can work in combination with the change condition of the pressure value of the oil tank, can flexibly meet the requirement for removing water in the oil tank under different working conditions and operation environments, and is suitable for various hydraulic stations used in humid and water-containing environments, such as small industrial hydraulic equipment or large engineering hydraulic systems. The functions of water removal and stable operation can be effectively exerted, and the method has a wide application prospect and good universality.

The invention discloses a water turbine split key disassembling device and method. The water turbine split key disassembling device comprises a disassembling main sleeve and a jacking nut, and the disassembling main sleeve is in threaded connection with the jacking nut; a left clamping block and a right clamping block are arranged on the disassembling main sleeve, two vertical blind holes communicated with the left clamping opening and communicated with the right clamping opening in a staggered mode are formed in the disassembling main sleeve in the axial direction, vertical screw rods are arranged in the vertical blind holes, and limiting holes matched with the vertical screw rods are formed in the left clamping block and the right clamping block. And a screw threaded hole is formed in the bottom section of the vertical blind hole. The left clamping block and the right clamping block are clamped in the annular clamping groove of the split key, the left clamping block and the right clamping block are fixed through the vertical screw on the disassembling main sleeve, so that the disassembling main sleeve and the split key are clamped, the disassembling main sleeve is jacked through the jacking nut by rotating the jacking nut, and the disassembling process is completed. The disassembling main sleeve is matched with the left clamping block and the right clamping block, the split key is jacked and pulled out, hydraulic equipment is not needed, and the disassembling efficiency is high.

This invention relates to the field of hydraulic equipment technology and provides a method, device, and electronic equipment for detecting oil leaks in a hydraulic system. The method includes: a hydraulic system oil leak detection method, wherein the hydraulic system includes an oil tank, multiple first hydraulic cylinders equipped with displacement sensors, and multiple second hydraulic cylinders without displacement sensors; the method includes: obtaining a first oil volume in the oil tank and the multiple first hydraulic cylinders at a first set time; obtaining a second oil volume in the oil tank and the multiple first hydraulic cylinders at a second set time after the first set time; obtaining a third oil volume, wherein the third oil volume is the sum of the maximum changes in hydraulic oil volume in the multiple second hydraulic cylinders; and comparing the difference between the first oil volume and the second oil volume with the third oil volume to determine whether the hydraulic system is leaking. This ensures accurate and timely detection of oil leaks in the hydraulic system and avoids affecting the normal operation of the hydraulic equipment.

The invention belongs to the technical field of hydraulic equipment, and particularly discloses a small-table-board ultrahigh-pressure hydraulic extrusion press which comprises a hydraulic system, an electrical system, a supercharger and a hydraulic body. The hydraulic body comprises a rack, a liquid filling device, an upper cross beam, a main cylinder, a return cylinder, an abutting mechanism, a pressing head and a workbench. The pressurizer is used for pressurizing liquid of the hydraulic system and conveying the liquid into the liquid filling device; a big-end-down stepped hole is formed in the rack; a cylinder body of the main cylinder is of a big-end-down protruding structure, a through hole matched with the small end of the cylinder body is formed in the upper cross beam, and the small end of the cylinder body of the main cylinder is embedded into the through hole. The periphery of the upper cross beam is fixed in a small hole of the stepped hole; the cylinder body large end of the main cylinder is matched with the large hole of the stepped hole, and the upper side of the cylinder body large end can abut against the top of the large hole of the stepped hole; the abutting mechanism can jack up the main cylinder upwards. And the return cylinder is mounted on the main cylinder. The pressurizer is adopted to provide ultrahigh pressure, the use pressure is improved, the cylinder diameter of the main cylinder is reduced, and the device is more suitable for large-tonnage small table tops.

The utility model discloses a quick release type pneumatic hydraulic equipment positioner which comprises a positioner body, a mounting inserting plate is arranged on the side surface of the positioner body in an attached mode, a mounting fixing plate is arranged on one side of the mounting inserting plate, a sliding groove is formed in the outer surface of the mounting fixing plate, the sliding groove is designed to be in a step shape, and the mounting inserting plate is arranged in the sliding groove. And an inserting mechanism is arranged between the mounting inserting plate and the mounting fixing plate, and the positioner body can be quickly mounted on the side surface of the mounting fixing plate through the inserting mechanism. According to the quick-release type positioner for the pneumatic hydraulic equipment, when the positioner body breaks down and cannot be used, the positioner body and the mounting insertion plate can be taken down from the mounting fixing plate only by rotating a threaded insertion nail through a tool, and the mounting insertion plate moves in the direction of a sliding block groove; and the mounting inserting plate and the mounting fixing plate cannot move at will when being inserted through the sliding block groove, so that the positioner body can be conveniently and quickly replaced and maintained.

The application discloses a rolling roller replacing device, relates to the technical field of rolling roller equipment, and comprises a track beam, a translation sliding seat assembly, a cantilever mechanical frame assembly, a rotary mechanical arm assembly, a mounting frame, a hydraulic clamping assembly and a controller, the controller is installed on the mounting frame, and the controller is used for respectively controlling the opening and closing of relevant hydraulic equipment in the translation sliding seat assembly, the cantilever mechanical frame assembly, the rotary mechanical arm assembly, the mounting frame and the hydraulic clamping assembly. The application has the advantages of reasonable structure, the track beam, the translation sliding seat assembly, the cantilever mechanical frame assembly, the rotary mechanical arm assembly, the mounting frame, the hydraulic clamping assembly and the controller are arranged, the above components can be matched with each other to realize rolling roller carrying operation, effectively replace manual carrying, improve work efficiency, meanwhile, the safety during carrying is improved, and the application has good use effect.

This invention proposes a novel hydraulic cylinder with an increased force-bearing area, belonging to the field of industrial hydraulic equipment technology. The aim is to increase the output force of the hydraulic cylinder without altering its external dimensions or system pressure. The outer cylinder has a concave-shaped structure, while the inner cylinder has a convex-shaped structure. The inner cylinder is movably installed inside the outer cylinder. A first end cap is located on the left side of the inner cylinder's cavity, and a second end cap is located between the right outer wall of the inner cylinder and the outer cylinder, forming an exhaust chamber between the outer cylinder, the inner cylinder, and the second end cap. A first exhaust port is provided on the inner cylinder, and a second exhaust port is provided on the second end cap to discharge gas from the exhaust chamber. The piston rod passes through the outer cylinder and the first end cap before entering the inner cylinder's cavity, and a channel is provided on the piston rod. This invention overcomes the limitations of traditional hydraulic cylinders that rely on "high pressure" or "large size" to increase output force. Through optimized design, it can generate a large actuation force at a lower system pressure, meeting the requirements of heavy-duty working conditions.

The invention discloses a torque prediction method suitable for high-viscosity material mixing, and belongs to the field of hydraulic equipment. Rotation speed and pressure drop, temperature and flow in hydraulic power transmission are used as input, torque actually measured by a torque sensor is used as output, accurate prediction of the torque of the hydraulic kneading machine is achieved by training an artificial neural network model, the artificial neural network model is continuously optimized in a machine learning mode, and the prediction precision of the torque of the hydraulic kneading machine is improved. The prediction accuracy is improved, the artificial neural network model has good mobility, and an accurate torque prediction result is provided for the working condition that the torque sensor cannot be installed. The method is not limited by installation conditions and environmental factors of the torque sensor; high-precision torque prediction is realized through multi-working-condition testing, comprehensive data acquisition, redundant information removal, data normalization processing, and establishment and optimization of a feedforward neural network. The constructed artificial neural network model has good mobility and can adapt to different hydraulic mixing devices.

The utility model discloses novel hydraulic equipment for plugging an air brick, which comprises a base, a fixed male die is mounted at one end of the base, a movable male die is mounted at the other end of the base in a sliding manner, semi-circular detachable forming dies are mounted at opposite ends of the fixed male die and the movable male die, and upright posts are mounted at four corners of the base. A guide groove is formed between the upper portions of the two stand columns on the same side, a moving plate is slidably installed between the two guide grooves, a first telescopic piece is installed on the moving plate, and a plugging head is installed at the telescopic end of the first telescopic piece. According to the utility model, through a novel plugging operation mode and an original hydraulic mode, the procedure of manually reversing the tire membrane after the completion of the original plugging is reduced, the labor intensity of workers is greatly reduced, and the plugging efficiency of the air brick is improved, so that the production efficiency is improved.

The utility model relates to the technical field of pressure detection, and discloses a pressure detection device for hydraulic equipment, which comprises a detection table, the inner side of the detection table is rotatably connected with a rotating column, the outer side of the rotating column is fixedly connected with a rotating assembly, and the top end of the detection table is fixedly connected with two connecting frames. A linear transmission assembly is fixedly connected to the top end of the connecting frame, a moving plate is fixedly connected to the outer side of the linear transmission assembly, a limiting assembly is fixedly connected to the outer side of the moving plate, a telescopic air cylinder is fixedly connected to the outer side of the moving plate, and a detection plate is fixedly connected to the outer side of the telescopic air cylinder; and the outer side of the detection plate is fixedly connected with an ultrasonic detection probe. The pressure detection equipment for the hydraulic equipment has the advantages that the overall height can be adjusted, and the hydraulic equipment at different positions can be conveniently detected.

The utility model discloses a plate feeding and positioning mechanism at the front end of a plate shearing machine, and belongs to the technical field of plate shearing machines. A plate shearing machine front end plate feeding and positioning mechanism comprises a positioning and pushing frame, a hydraulic cylinder assembly is arranged on one side of the positioning and pushing frame, a movable shaft frame is arranged above the positioning and pushing frame and is in sliding connection with the positioning and pushing frame, sleeve frames are arranged at the two ends of one side of the movable shaft frame, and the sleeve frames are connected with the hydraulic cylinder assembly. The sleeve frames are connected with the movable shaft frame through bolts, and a servo motor is arranged on one side of one sleeve frame. In order to solve the problems that a plate shearing machine needs to be accurately positioned before shearing a plate, so that the flatness of a notch is guaranteed, but relatively accurate positioning cannot be provided during manual feeding, and a certain plate bouncing risk also exists in the manual feeding process, a positioning pushing frame is matched with hydraulic equipment to realize correction and feeding operation of the plate; the efficiency is improved; and meanwhile, the notch smoothness is ensured.

1. Name of the product in this design: Electro-hydraulic actuator (explosion-proof). 2. Application of this design: This design is used in hydraulic devices on hydraulic equipment to convert hydraulic energy into mechanical energy. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

A sealing device for wind power hydraulic equipment belongs to the field of wind power hydraulic equipment and comprises a piston rod and an anti-seismic sealing mechanism arranged on the outer side of the piston rod. The anti-seismic sealing mechanism comprises a first cylinder barrel assembly and a second cylinder barrel assembly. A piston assembly is arranged at the bottom end of the piston rod, the piston assembly is sleeved with the second cylinder barrel assembly, a rod body of the piston rod is sleeved with the first cylinder barrel assembly, and a movable connecting assembly is arranged between the first cylinder barrel assembly and the second cylinder barrel assembly. The first cylinder barrel assembly is arranged on the rod body of the piston rod, the rod body of the piston rod slides in the first cylinder barrel assembly in a reciprocating mode, the second cylinder barrel assembly is arranged on the piston assembly of the piston rod, and the piston assembly slides in the second cylinder barrel assembly in a reciprocating mode. The first cylinder barrel assembly and the second cylinder barrel assembly are connected through the elastic silica gel outer sleeve and the armored lining, so that extrusion between the piston rod and the first cylinder barrel assembly and extrusion between the piston rod and the second cylinder barrel assembly are reduced when the piston rod vibrates, and the sealing performance of the piston rod is guaranteed.

The utility model relates to the technical field of hydraulic equipment, in particular to an automatic uncovering structure of a liquid nitrogen tank, which comprises an indwelling frame, the indwelling frame comprises a top plate at the top of the indwelling frame, a winding and unwinding device is arranged on the top plate, a rope is controlled on the winding and unwinding device, and the other end of the rope is connected with a supporting part and used for controlling the height of the supporting part. A working groove is formed in the supporting part, a sliding rod and a two-way lead screw which are parallel to each other are arranged in the working groove, a first motor is arranged at the position, corresponding to the two-way lead screw, of the supporting part, sliding blocks which are connected in a sliding and sleeving mode are symmetrically arranged on the outer wall of the sliding rod, and the other ends of the sliding blocks are meshed with the two-way lead screw through lead screw nuts in the sliding blocks; a clamping block is arranged at the bottom end of the sliding block and used for clamping a neck plug, an embedded block is arranged on the side wall of the clamping block, and one end of the embedded block is fixedly connected with the clamping block. According to the utility model, the use of manpower is reduced, and the practicability and suitability of the structure are improved.

The application discloses a well wall supporting device and a construction method thereof, which comprises a hinged seat, two groups of hinged rods movably arranged on the two sides of the hinged seat, a connecting piece arranged at the end of one group of the hinged rods, a buckling piece adapted to the connecting piece arranged at the end of the other group of the hinged rods, and an adjusting sliding groove arranged on each of the two groups of the hinged rods. When the device is used, the connecting piece and the buckling piece are used to connect the two groups of the well wall supporting devices to be arranged in a ring shape around the well wall, then a hydraulic device is connected to the piston rod, the internal pressure of the hydraulic adjusting part is increased, a mutual resisting ring structure is formed between the supporting devices, the resisting plate is in contact with the well wall by driving the hydraulic telescopic pipe as the internal pressure of the hydraulic adjusting part continuously increases, and the well wall is supported. The above structure has good adaptability, can be adapted to different diameter use scenes, and effectively improves the overall operation efficiency.

The utility model relates to the technical field of SCR (Selective Catalytic Reduction) treatment devices, and discloses a wastewater sludge filter pressing device for improving a waste SCR treatment process, which comprises a reaction tank, liquid mixed in the reaction tank is conveyed into a settling pond through a second conveying pipeline, the settling pond drives settled liquid to be conveyed into a filter pressing machine body through a sludge pump, and the filter pressing machine body is connected with the reaction tank through a second conveying pipeline. Brackets are fixedly connected to two sides of the upper part of the filter press body. According to the wastewater sludge filter pressing device for improving the waste SCR treatment process, when impurities are discharged through equipment, hydraulic equipment is started to drive a hydraulic rod to reduce pressure on a filter plate, a screw rod is started to push a transverse rail to move towards the inner side and extrude an inclined rod, the inclined rod pushes the filter plate to move towards the two sides after bearing pressure, meanwhile, a second sliding block moves in the transverse rail, and the second sliding block moves in the transverse rail; under the auxiliary action of elasticity of the springs, each group of filter plates can be driven to be synchronously opened, and meanwhile, impurities are sequentially taken out from the space between the two groups of filter plates, so that the convenience during impurity cleaning is provided.

The utility model discloses a sky rail compactor which comprises a mother vehicle, a son vehicle, a pressing hammer, a first positioning mechanism and a second positioning mechanism, the mother vehicle is movably arranged on a steel beam of a station building in the first direction, the son vehicle is movably arranged on the mother vehicle in the second direction, a hydraulic equipment installation platform is arranged below the son vehicle, and the pressing hammer is connected to the son vehicle. The first positioning mechanism is arranged between the primary vehicle and the steel beam, and the second positioning mechanism is arranged between the secondary vehicle and the primary vehicle and between the secondary vehicle and the steel beam; wherein the mother vehicle is used for driving the son vehicle to move to the side of the compression station, and the son vehicle is used for driving the pressing hammer to enter the compression station. An overhead hydraulic station installation structure is changed into a suspension type structure, the space above the pressing hammer is saved, and therefore the purpose of reducing the overall height of a station building is achieved.

The utility model relates to the technical field of automobile motor, and disclose a kind of automobile motor rear box body subassembly press fitting equipment, including stabilizing table, the upper end of stabilizing table is fixedly arranged with workbench, the upper end of stabilizing table is fixedly arranged with support block, the upper end of support block is fixedly arranged with fixed top block, the upper end of fixed top block is fixedly arranged with fixed shell, the upper end of fixed shell is fixedly arranged with hydraulic equipment, one end of movable block is fixedly arranged with movable motor.The automobile motor rear box body subassembly press fitting equipment, through the improvement of subassembly press fitting equipment, the activity adjustment and stability of the subassembly press fitting equipment are improved, in the actual use process of the subassembly press fitting equipment, the subassembly press fitting equipment can be adjusted to the appropriate angle position according to the need, the subassembly press fitting equipment is stably press fitted, and the subassembly press fitting effect of the automobile motor rear box body subassembly press fitting equipment is improved.

The utility model discloses a multifunctional hydraulic crossover coupling, which comprises a connecting device, a connecting pipe and a butt joint device, the connecting device comprises a connecting frame, the connecting frame is fixedly connected with the connecting pipe, the front of the connecting frame is fixedly connected with a first sealing ring, the front of the connecting frame is fixedly connected with a first butt joint, and the front of the first butt joint is fixedly connected with a second sealing ring. A connecting ring is arranged in the middle of the first butt joint, a sealing ring is fixedly connected to the rear of the first butt joint, the butt joint device comprises a butt joint pipe, a second spring is fixedly connected to the front of the outer portion of the butt joint pipe, a sliding lock pipe is fixedly connected to the other end of the second spring, and a limiting ring is fixedly connected to the middle of the butt joint pipe. A second butt joint is fixedly connected to the front portion of the interior of the butt joint pipe. By means of the structure, joints can be unified, a single hydraulic motor pump can be connected with various hydraulic devices, and butt joint can be rapidly completed; and hydraulic oil leakage can be better avoided.

The utility model relates to the technical field of mining mechanical equipment maintenance, in particular to hydraulic equipment for mining equipment maintenance, which comprises a base, a maintenance plate is arranged above the base, a hydraulic lifting mechanism is arranged between the base and the maintenance plate, and a protection mechanism is arranged on the outer side of the maintenance plate. The protection mechanism comprises installation cavities, the two installation cavities are formed in the left side and the right side of the maintenance plate, and collection boxes with upper openings are arranged on the inner sides of the installation cavities. Through arrangement of the protection mechanism, when the mining equipment is maintained, dust and sundries falling off from the mining equipment can be collected under the action of through holes and the collection boxes; and dust flying around is adsorbed and filtered under the action of the negative pressure fan, the filter box and the pipeline, so that the dust is prevented from being accumulated on the maintenance equipment or flying into the environment, maintenance is facilitated, and damage to the maintenance equipment is prevented.

The invention relates to a method for operating a hydraulic device using an operating device which can be connected to the hydraulic device by means of a data connection, the method comprises: if an impending change (200, 202) in the connection state relating to the data connection between the operating device (50) and the hydraulic device (20) is identified: determining (204) state information about the current operating state of the hydraulic device; if the current operating state (208) satisfies the correlation criterion (207) according to the state information: determining (212) one or more action suggestions (216, 218) relating to the current operating state of the hydraulic device based on the state information; providing (214) one or at least one action suggestion of a plurality of action suggestions (216, 218) to the user; obtaining (224) one or more action instructions (222) relating to a current operating state of the hydraulic device; and if one or at least one of the plurality of action instructions includes a change in the current operating state of the hydraulic device: causing (242) the change in the operating state of the hydraulic device.

The present application relates to the technical field of hydraulic equipment, in particular to a mobile hydraulic power station. The mobile hydraulic power station comprises a chassis, a hydraulic oil tank arranged at the bottom of the chassis, a power output assembly, a heat dissipation groove and fuel tanks arranged on the chassis, and the fuel tanks are arranged on both sides of the chassis in the width direction. The front side of the chassis is provided with a fairing corresponding to the power output assembly, the heat dissipation groove is located at the rear side of the chassis and corresponds to the power output assembly, the power output assembly can suck air flow from the fairing and discharge it to the heat dissipation groove, the top of the fuel tank is provided with a cover, the two sides of the cover in the width direction are respectively connected with the top of the two fuel tanks, and the two sides of the cover in the length direction are respectively connected with the fairing and the heat dissipation groove, and the hydraulic oil tank, the fuel tank, the fairing, the heat dissipation groove and the cover jointly form a sound insulation shell structure. By using the above form, the noise generated during work can be reduced, and the influence on the hearing of related personnel can be reduced.