79results about How to "Realize automatic reversing" patented technology

The invention relates to a trailer which is characterized in that a double-faced fluted disc clamping device is respectively arranged at the front end and the rear end of left and right draw arms of the trailer, a traction machine head and a side wall of a draft sill; a trailer chassis front steering support includes an outer tube, an inner tube, a crank sleeved with a leading screw assembly, and a bracket assembly doweled with a front idler pulley through a bolt; the top end of the outer tube is connected with a crank assembly which is connected with the leading screw of the leading screw assembly through a ratchet wheel assembly; a brake reversing ratchet mechanism is arranged in the position symmetrical to a strutting mechanism on a brake base plate in a braking device; and a taillight system is equipped with a tractor taillight socket and a matching box connected with the taillight system of the trailer. The trailer has the advantages of facilitating the height adjustment and the horizontal maintenance of the traction connecting device, facilitating the improvement on the stability of the trailer in traveling, meeting the traction requirements of various tractors; collocating a trailer impact braking device without air source or liquid source; realizing the automatic reversion of the trailer; and equipping the taillight system with the matching box for matching the trailer with tractors of various types.

The present invention provides an electric core end face kneading flattening device, which comprises a frame, an electric core clamping device and a kneading flattening device, the electric core clamping device and the kneading flattening device are correspondingly arranged, the electrical core clamping device is arranged on the frame through a rotating device, the kneading flattening device is installed slidably on the frame, and a sliding seat can move front and back relatively to the kneading flattening device. The electric core clamping device and the kneading flattening device are arranged on the frame, the electric core clamping device is used for fixing and clamping an electric core to match with the kneading flattening device for kneading flattening shaping of end faces of the electric core, meanwhile the electrical core clamping device is arranged on the frame through the rotating device, the rotating device drives the electric core clamping device to rotate so as to realize the automatic reversing of the electric core, the processing efficiency is improved, labor intensity is reduced, clamping error caused by secondary clamping can be avoided, wherein the clamping error can lead to differences in shaping effect of the two end faces of the electric core, and can affect the processing quality.

The invention discloses a multifunctional full-automatic potato combine harvester, and relates to the technical field of farm machines. The multifunctional full-automatic potato combine harvester comprises a steering traction mechanism, a machine head mechanism, a feeding shovel mechanism, a first seedling and potato conveying mechanism, a second seedling removing conveying mechanism, a third potato and stone conveying mechanism, a fourth lifting conveying mechanism, a fifth steering conveying mechanism, a sixth winnowing conveying mechanism, a winnowing mechanism, a stone conveying mechanism, a large-small separating mechanism, a seventh large stock bin feeding conveying mechanism, a large stock bin discharging conveying mechanism and a small stock bin discharging conveying mechanism. A main power source is supplied by a tractor. By means of the multifunctional full-automatic potato combine harvester, seedlings and potatoes can be separated automatically, so that labor intensity is greatly lowered, and human cost is reduced.

The invention discloses a hydraulic auto-oscillation control system for a fire water monitor, which comprises a hydraulic cylinder, a watercourse base plate, a hydraulic change valve and a mechanical feedback device, wherein the hydraulic cylinder comprises a cylinder body, a piston, a piston rod, a cylinder body end cover and the like; the hydraulic change valve comprises a valve plug, a valve body, a positioning end cover, an end cover spacer and the like; and the mechanical feedback device comprises a bumping head, a bumping block, an adjusting handle, a drive bracket and the like. When the valve plug is positioned at a left position of the valve body, water enters a left cavity of the cylinder body, and the piston rod moves rightwards, when the piston rod moves to a certain position, the bumping block positioned on the left side presses the bumping head to plug a water outlet, and then the pressure of the left cavity of the cylinder body increases to push the valve plug to move rightwards; and when the valve plug moves to a right position of the valve body, water enters a right cavity of the cylinder body, and the piston rod moves leftwards. Under the action of the water power, the control system can drive the piston rod to move back and forth so as to drive a fire water monitor head to jet at a certain angle and in a certain oscillating frequency, has a wide coverage and is in particular suitable for a large space and the places where firefighters are unapproachable.

The invention discloses a directional guiding and branching mechanism for end-closed pipe fittings, and belongs to the field of mechanical equipment for processing and transmission of workpieces. A pushing plate sleeve is arranged on and vertically communicates with the lower side of a pipe storing hopper, a lifting pushing plate slides in the vertical direction and is arranged on the pushing plate sleeve, a feeding guiding pipe is fixedly arranged on a guiding pipe bracket besides the pipe storing hopper, branch guiding pipes are arranged on the two sides of the lower end of the feeding guiding pipe in a symmetrical and communicating mode, a rotating guiding plate is rotatably arranged at the end of the lower side of the feeding guiding pipe, a fixed bearing plate is horizontally and fixedly arranged on the guiding pipe bracket on the lower sides of the two branch guiding pipes, pipe transmitting brackets are horizontally and fixedly arranged on the two sides of the upper part of thefixed bearing plate, and pipe transmitting belts are horizontally arranged on the upper sides of the pipe transmitting brackets. The directional guiding and branching mechanism is reasonable in structural design, the pipe fittings can be conveniently and efficiently arrayed and guided one-by-one in a directional mode, the pipe fittings can be stably, smoothly and evenly branched, fed and transferred in a division mode, the automation degree of pipe fitting transferring and processing are improved, and the needs of processing and using are met.

The invention discloses a horizontal broaching machine. The invention mainly has the following technical points: a speed-difference valve is arranged between a hydraulic cylinder and a reversing valve; the moving speed of a piston of the hydraulic cylinder can be raised by more than two times when a high-pressure oil is fed into a non-rod cavity of the hydraulic cylinder and then the return time of a broach can be largely shortened and the work efficiency of the broaching machine can be enhanced. One the other hand, a manual reversing valve is adopted, and a mechanical operation device is arranged between the manual reversing valve and a sliding seat. The operation device can drive a valve rod of the manual reversing valve to move when the sliding seat moves to a corresponding position so as to realize an automatic reversing of the hydraulic cylinder. Compared with a reversing device formed by a solenoid directional valve and a stroke switch, the invention has the advantages that the use is reliable; the regulation is convenient; the structure is simple and the manufacturing cost is low.

The invention provides a mechanical winch automatic reversing cable distributor mechanism, which comprises a motive power transmitting mechanism, a reversing bevel gear group, a cable guide mechanism and a reversing trigger mechanism, wherein a first bevel gear is arranged on a rotating shaft of a winch, the motive power transmitting mechanism is formed by connecting two bevel gear shafts througha shaft coupler, the reversing bevel gear group consists of a second bevel gear and a third bevel gear which are arranged at splines of inner and outer ring belt teeth arranged at the end part of a screw rod, the end part of one bevel gear shaft of the motive power transmitting mechanism is engaged with the first bevel gear, the end part of the other bevel gear shaft of the motive power transmitting mechanism is positioned between the second bevel gear and the third bevel gear and is engaged with one of the second bevel gear and the third bevel gear, the cable guide mechanism comprises a screw lead and a cable guide frame sheathed on the screw rod through a screw nut, the reversing trigger mechanism comprises two pull rods passing through the cable guide frame, the end part of each pull rod is provided with a spring, a position limiting block and racks, and a ratchet mechanism used for shifting the second bevel gear or the third bevel gear is arranged between the two racks. The structure of the whole mechanism is compact and ingenious, and the automation degree is high.

The invention discloses a pneumatic hammer comprising an air supplying device, a cylinder, a piston, an airflow conversion valve, a piston resetting device and a striking device, wherein the piston for separating a first chamber and a second chamber is arranged in the cylinder; a piston rod hermetically penetrates through the second chamber and is connected with the striking device; an exhaust port C3 is arranged on the cylinder; an airtight damper for separating the first chamber and a third chamber is arranged in the cylinder, and is provided with the airflow conversion valve on the side of the third chamber; a movable valve block of the airflow conversion valve is driven to rotate around a rotating shaft by the pressure difference generated by alternate changes of pressure in the first chamber or the second chamber so as to alternately connect or disconnect the communication between the first chamber or the second chamber of the cylinder and the compressed air; and thus, the purpose of striking round nails can be achieved by driving the piston to reciprocate to drive the striking device connected with the piston rod to reciprocated under the condition with the compressed air. The invention provides a high-efficient and professional pneumatic hammer capable of automatically striking the round nails.

The invention provides an automatic-switching heat accumulation type gas burner, wherein two single gas burners with the same structure are arranged at two sides of a furnace body; when one burner burns, the other burner accumulates heat; the automatic reversing of the burner is achieved by an external switching valve; the switching of a low-temperature operating mode and a high-temperature operating mode, the low-temperature high-speed burning and the high-temperature oxygen-lacking burning and smoke reflux technology are adopted, so that the heat exchange is full, the inlet temperature of the combustion-supporting air is improved greatly, the temperature of the exhausted smoke is reduced, the complete burning is achieved, and the low NOx emission, automatic switching of high and low temperature operating modes, high-efficient and energy-saving self heat accumulation function are achieved.

The invention discloses an oscillating floater type wave energy power generation device based on a dielectric elastomer and belongs to the technical field of ocean power generation devices. The oscillating floater type wave energy power generation device comprises a wave energy collecting structure, a high pressure inflating mechanism, a gas energy storage mechanism, a gas-driven reversing mechanism, a dielectric elastomer power generation sleeve and a floating structure; the wave energy collecting structure comprises a floater and a connecting rod, the bottom of the connecting rod is connected to the floater, the top of the connecting rod is connected to a bowl-shaped piston of the high pressure inflating mechanism, and in a using state, the floater fluctuates up and down or swings alongwith waves on the sea surface, so that the connecting rod moves, and the connecting rod further drives the bowl-shaped piston to move up and down; the bowl-shaped piston moves up and down to extrude air and the air flows into the gas energy storage mechanism; and the dielectric elastomer power generation sleeve is connected to a small air cylinder of the gas-driven reversing mechanism through a gas conveying pipeline. The oscillating floater type wave energy power generation device provided by the invention is easy to miniaturize and low in cost and has an excellent electro-mechanical transformation characteristic, so that the oscillating floater type wave energy power generation device can supply power continuously for a long time and is high in energy collecting efficiency.

The invention discloses a device for polishing an inner hole weld root of a high-temperature alloy furnace tube. The device for polishing the inner hole weld root of the high-temperature alloy furnace tube comprises a furnace tube rotating power transmission device, a furnace tube supporting device, a grinding device and a grinding supporting device. The furnace tube rotating power transmission device, the furnace tube supporting device and the grinding supporting device are installed in sequence, the high-temperature alloy furnace tube is installed on the furnace tube supporting device, one end of the high-temperature alloy furnace tube is connected with the furnace tube rotating power transmission device, and the grinding device is installed on the grinding supporting device. According to the device for polishing the inner hole weld root of the high-temperature alloy furnace tube, automatic control is achieved, only manual monitoring is needed in the weld root polishing working process, labor intensity is reduced, and working efficiency is improved; by arranging a limiting shaft and a magnetic switch, limitation and automatic reversing are achieved, the polishing position and distance of the furnace tube weld root can be determined accurately, the shortcoming that polishing is not performed on the designated position or the polishing distance is too long in the artificial polishing is overcome, and accordingly polishing quality of the furnace tube weld root is effectively guaranteed.

The invention discloses a pneumatic hammer comprising an air supplying device, a cylinder, a piston, a reversing valve, a piston resetting device and a striking device, wherein the piston for separating a first chamber and a second chamber is arranged in the cylinder; a piston rod hermetically penetrates through the second chamber and is connected with the striking device; an exhaust port C3 is arranged on the cylinder; a movable valve core of the reversing valve moves under the drive of pressure difference generated by alternate changes of pressure in the first chamber or the second chamber so as to alternately connect or disconnect the communication between the first chamber or the second chamber of the cylinder and compressed air; air inlet and exhaust of the first chamber and the second chamber of the cylinder are switched by the match of the reversing valve and the reciprocating motion of the piston so that the piston can be automatically reversed; and the purpose of striking round nails can be achieved by driving the piston to reciprocate and drive the striking device connected with the piston rod to reciprocate under the reciprocating motion of the piston in the cylinder. The invention provides a high-efficient and professional pneumatic hammer capable of automatically striking the round nails.

The invention relates to a hydraulic fan system to solve the problem that the automatic reversing of an existing hydraulic fan system is not easy to operate. The invention provides a hydraulic fan system and engineering machinery. The hydraulic fan system comprises a hydraulic oil tank, a fan pump with an oil inlet end connected with the hydraulic oil tank, a control valve, a fan motor, a controller, and a rotating speed sensor which is used for detecting the rotating speed of the fan pump and is connected with the controller. The control valve comprises an M-shaped middle-position three-position four-way electromagnetic reversing valve and a motor brake loop; a port P and a port T of the electromagnetic reversing valve are connected with the fan pump and the hydraulic oil tank respectively; two working oil ports are connected with the fan motor respectively; the motor brake loop is arranged between the two working oil ports; and the electromagnetic control end of the electromagnetic reversing valve is connected with the controller. According to the hydraulic fan system and the engineering machinery provided by the invention, the electromagnetic reversing valve and the motor braking loop are arranged, motor braking stopping can be achieved during reversing, and reverse driving is conducted after stopping, so that automatic reversing is achieved, and the impact generated duringfan reversing is avoided.

The invention provides a damping piston debugging system for an oil damper. The damping piston debugging system for the oil damper comprises a hydraulic cylinder and a damping piston debugging fixture, wherein the hydraulic cylinder is connected with the damping piston debugging fixture through a reversing valve I and a reversing valve II. The damping piston debugging fixture comprises a sealing cover I, a sealing cover II and an adjustment device, wherein a damping piston is clamped between the sealing cover I and the sealing cover II; and the adjustment device comprises at least one single adjustment element, and the single adjustment elements are arranged on the sealing cover I or the sealing cover II, form one-to-one correspondence with adjustment valves on the damping piston, and areused for adjusting the flow rates of the adjustment valves. According to the damping piston debugging system for the oil damper, the hydraulic cylinder is used as a pressure source of the system; pressure oil is bidirectionally provided for the damping piston debugging fixture by stretching or compressing a piston rod of the hydraulic cylinder, the plurality of adjustment valves reversely arrangedon the damping piston can be adjusted, and the actual use environment of the damping piston is simulated. With the adoption of a two-position three-way hydraulic control valve, the automatic reversing of the system is realized; and a shuttle valve and a safety valve are designed, so that the safety of the system is guaranteed.

The invention discloses a tide lane alternating system for obstacle avoidance by a camera and a tide lane alternating method for obstacle avoidance by the camera. The tide lane alternating system comprises a remote control center, a traffic signal lamp background data server, a road section control substation and a lane alternating robot; when the alternation of the tide lane is in need, the remote control center sends a tide lane alternating signal to the road section control substation, and the road section control substation sends the walking command control signal to all lane alternating robots on the corresponding tide lane section through a wireless data transmission manner; every lane alternating robot executes corresponding movement when respective walking command is received and feeds back the position information to the road section control substation in real time. The tide lane alternating system and the method can realize the automatic alternation of the tide lane; the real-time alternation of urban traffic road network can be realized by combining the traffic signal lamp background data server and using the big data; the change of road demand by the traffic accident, traffic flow change and other factors can be copied at any time, the automatic control of the tide lane is realized.

The invention discloses a hydraulic slurry pump. The hydraulic slurry pump comprises a hydraulic cylinder body, a slurry pump body, a piston rod, and a connecting block which is arranged between the hydraulic cylinder body and the slurry pump body and used for connecting the hydraulic cylinder body and the slurry pump body. The piston rod is connected in the connecting block in a sliding mode, theleft end of the piston rod is located in the hydraulic cylinder body, and the right end of the piston rod is located in the slurry pump body. A hydraulic piston connected with the left end of the piston rod is connected in the hydraulic cylinder body in a sliding mode, and a slurry piston connected with the right end of the piston rod is connected in the slurry pump body in a sliding mode. A hydraulic end cover is installed at the left end of the hydraulic cylinder body and provided with a reversing valve for controlling the reciprocating motion of the hydraulic piston. A slurry end cover isinstalled at the right end of the slurry pump body and provided with a one-way valve assembly for controlling slurry to get into and out of the slurry pump body. The slurry pump is not only simple instructure but also free of electric control.

The invention relates to a rotary control system for passenger compartment seats of a transportation means. The rotary control system comprises the plurality of passenger compartment seats; each passenger compartment seat comprises a seat rotating stand and a seat base, wherein the seat rotating stand is mounted on the seat base through a rotating stand connecting part; the seat rotating stand isprovided with a pedal plate, a backrest, a seat cushion, a pedal plate adjusting and unlocking assembly and a backrest adjusting and unlocking assembly; a backrest and pedal plate returning assembly is mounted on the seat base; the seat base is provided with a locking mechanism for locking the seat rotating stand and the seat base; each passenger compartment seat is further provided with a seat electric rotating system and the seat electric rotating system comprises a controller, an electric rotating mechanism and a clutching and disconnecting mechanism; the system further comprises a controlterminal; the control terminal is connected with the controllers on the plurality of passenger compartment seats; at the same time; the control terminal comprises a display module and a function control module. According to the system provided by the invention, the passenger compartment seats are intensively controlled to rotate based on bus control.

The invention discloses a laser ranging obstacle avoidance based reversible lane change system and method. The system comprises a remote control center, a traffic signal light background data server,a road section control base station and lane change robots. When reversible lane changing is required, the remote control center sends reversible lane changing signals to the road section control basestation in real time, the road section control base station sends traveling command control signals to corresponding lane change robots in real time by means of wireless data transmission, and the lane change robots execute corresponding movement after receiving respective traveling commands and feed back position information to the road section control base station in real time. Automatic changing of reversible lanes can be realized according to demands; by the aid of the traffic signal light background data server, real-time changing of an urban traffic road network can be realized according to big data, and road requirement changes due to factors such as traffic accidents, traffic flow variation and severe weather can be coped with at any time, and automatic control of the reversible lanes is realized.

The invention discloses a reversible lane changing system and method based on compass angle measurement and infrared distance measurement. The system comprises a remote control center, a traffic lightbackground data server, a road segment control base station and lane changing robots, when reversible lane changing is needed, the remote control center sends reversible lane changing signals to theroad segment control base station, the road segment control base station sends travelling command control signals to all the lane changing robots on a corresponding reversible lane road segment by means of wireless data transmission in real time, when the lane changing robots receive travelling commands respectively, corresponding moving is executed, and position information is fed back to the road segment control base station in real time. By means of the system and the method, according to the requirements, automatic reversible lane changing can be achieved, big data in combination with thetraffic light background data server is used to achieve real-time urban traffic road network changing, changing of the road requirements due to factors such as traffic accidents and traffic flow changing is dealt with at any time, and automatic reversible lane control is achieved.

The invention discloses a reversible lane alternation system and method based on angle measuring through a compass and distance measuring through a laser. The reversible lane alternation system comprises a remote control center, a traffic signal lamp background data server, a road section control base station and lane alternation robots. When reversible lane alternation needs to be conducted, theremote control center sends a reversible lane alternation signal to the road section control base station, the road section control base station sends travelling command control signals to all the lane alternation robots of a corresponding reversible lane road section through a wireless data transmission mode in real time, and all the lane alternation robots execute corresponding movement when receiving travelling commands and feed position information back to the road section control base station in real time. According to the reversible lane alternation system and method, automatic alternation of a reversible lane can be achieved according to the requirement, by combining the traffic signal lamp background data server and utilizing big data, real-time alternation of a city traffic road network is achieved, change of the factors such as traffic accidents and vehicle flow change for the road requirements is dealt with at any time, and automatic control over the reversible lane is achieved.

The invention discloses a horizontal broaching machine. The invention mainly has the following technical points: a speed-difference valve is arranged between a hydraulic cylinder and a reversing valve; the moving speed of a piston of the hydraulic cylinder can be raised by more than two times when a high-pressure oil is fed into a non-rod cavity of the hydraulic cylinder and then the return time of a broach can be largely shortened and the work efficiency of the broaching machine can be enhanced. One the other hand, a manual reversing valve is adopted, and a mechanical operation device is arranged between the manual reversing valve and a sliding seat. The operation device can drive a valve rod of the manual reversing valve to move when the sliding seat moves to a corresponding position so as to realize an automatic reversing of the hydraulic cylinder. Compared with a reversing device formed by a solenoid directional valve and a stroke switch, the invention has the advantages that the use is reliable; the regulation is convenient; the structure is simple and the manufacturing cost is low.

The invention discloses a screw-reversible directional arrangement device which comprises a guide rail, a striker plate and a reversing material sliding groove. The striker plate is arranged on the guide rail, and the reversing material sliding groove is formed in the discharging end of the guide rail; the guide rail is used for enabling screws to slide along with the guide rail, one end of each screw is a large head, and the other end of each screw is a small head; a striker plate notch is formed in the striker plate and used for enabling the screws with the small heads upward to pass through the striker plate; and a feeding opening is formed in one end of the reversing material sliding groove, a discharging opening is formed in the other end of the reversing material sliding groove, the feeding opening is used for enabling the screws which pass through the striker plate and are provided with the small ends upwards to enter the reversing material sliding groove, the reversing material sliding groove is used for enabling the screws to reverse, and the discharging opening is used for enabling the reversed screws with the large heads upwards to penetrate out of the reversing material sliding groove. By means of the screw-reversible directional arrangement device, automatic reversing of the screw can be effectively achieved, the large head is upward, the small head is downward, in-order arrangement is achieved, the production efficiency is greatly improved, and the workload is reduced.

The invention discloses an automatic reversing mechanism, and belongs to the technical field of oil cylinder control devices. The automatic reversing mechanism solves the technical problem and achieves automatic reversing through the motion of piston rods of oil cylinders. According to the technical scheme for solving the technical problem, the automatic reversing mechanism comprises the first oil cylinder, the second oil cylinder, the third oil cylinder, the first piston rod, the second piston rod, the third piston rod and a manual reversing valve, a cylinder body of the first oil cylinder, a cylinder body of the second oil cylinder and a cylinder body of the third oil cylinder are all fixedly arranged, the second oil cylinder is arranged between the first oil cylinder and the third oil cylinder, the bottom end of the manual reversing valve is fixed, the manual reversing valve is a two-position four-way valve, and the manual reversing valve controls the motion direction of a second piston. The automatic control over the automatic reversing mechanism is achieved through the motion of the piston rods of the oil cylinders, and the explosion-proof security of equipment used under a mine is increased.

The invention discloses a mechanical feedback type speed-adjustable self-reversing gas pressurization cylinder comprising a hydraulic reversing valve and a tail end displacement feedback mechanism. Atthe tail end of the pressurization stroke, a piston of the pressurization cylinder pushes a feedback rod in a connecting body to move, and movement of the feedback rod is transmitted to a valve element of the hydraulic reversing valve through a feedback connecting rod, so that the valve element correspondingly moves; an internal flow channel is switched, and self-reversing of the gas pressurization cylinder is achieved; and the maximum displacement and the movement speed of the valve element of the reversing valve are changed by adjusting the position of the installation fulcrum of the feedback connecting rod and changing the feedback coefficient, and therefore the reversing speed of the pressurization cylinder is adjusted. According to the mechanical feedback type speed-adjustable self-reversing gas pressurization cylinder, compared with an electric control reversing pressurization cylinder, an electromagnetic reversing valve does not need to be adopted, the risk that electric sparksignite working gas is eradicated, the mechanical feedback type speed-adjustable self-reversing gas pressurization cylinder is particularly suitable for pressurizing conveying of flammable and combustible gas such as natural gas, and safety of the gas pressurization cylinder can be remarkably improved, reversing impact of the gas pressurization cylinder is reduced, and therefore vibration and noise of the gas pressurization cylinder are weakened.

The invention discloses a chip packaging system. The chip packaging system comprises a packaging machine, wherein a packaging cavity is formed in the packaging machine; a clamping reversing device isarranged on the upper side of the packaging cavity; the clamping reversing device comprises a lifting plate arranged on the upper side in the packaging cavity; a steering wheel is rotatably arranged on the lower side of the lifting plate and is driven to lift by controlling the lifting plate and then is controlled to reverse; a control turntable is rotatably arranged in the steering wheel; slidingplates are symmetrically arranged on the lower side of the control turntable back and forth; and the sliding plates are controlled to approach and move away from each other through the control turntable. According to the chip packaging system, a plastic packaging belt can be plastically packaged through flame spraying, and meanwhile, automatic reversing can be achieved; work of the last procedures can be directly connected, the chip packaging system is quicker and labor-saving; and accidental damage caused by flame spraying can be prevented, and the chip packaging is safer and more reliable.

The invention relates to a mechanical automatic reversing valve and a using method thereof, and belongs to the technical field of reversing valves. The mechanical automatic reversing valve is used for automatically controlling the running direction of an executing mechanism and comprises a valve body, a reversing valve element, a one-way valve I, a one-way valve II, a pressure regulating valve I and a pressure regulating valve II. The valve body is provided with an oil supply port P correspondingly communicated with a high-pressure oil supply pipe of a hydraulic system, an oil return port T correspondingly communicated with an oil tank of the hydraulic system, a connecting port A correspondingly communicated with one piston cavity of the executing mechanism and a connecting port B correspondingly communicated with the other piston cavity of the executing mechanism; a valve element cavity is formed in the valve body, and the reversing valve element used for switching the corresponding communication relation between the connecting port A and the connecting port B and between the oil supply port P and the oil return port T is installed in the valve element cavity. The valve body is internally provided with an oil path C which enables the connecting port A to be correspondingly communicated with one end of the valve element cavity. According to the mechanical automatic reversing valve and the using method thereof, the structure is simple, the failure rate is low, the purpose of automatic reversing of the reversing valve element can be achieved, and therefore the executing mechanism can be controlled to do automatic reciprocating motion.

The invention discloses a lithium battery carrying structure suitable for a stacking machine. The invention comprises a base arranged on a stacking machine, a tray taking mechanism arranged on the base, a lifting mechanism arranged above the tray taking mechanism and arranged on the base, a battery carrying mechanism arranged above the tray taking mechanism and connected to the lower portion of the lifting mechanism, a battery conveying mechanism arranged on the top of the lifting mechanism and connected with the tray taking mechanism and the tray taking mechanism, and an electric cabinet electrically connected with the lifting mechanism and the battery carrying mechanism. during working, the stacking machine drives the base to move, the tray taking mechanism takes or sends back the feeding tray or the battery tray or the battery clamp and drives the feeding tray or the battery tray or the battery clamp to move, and the battery carrying mechanism clamps and carries lithium batteries under the cooperation of the tray taking mechanism and the lifting mechanism. Automatic carrying of lithium batteries is achieved, the carrying mode of manual grabbing and mechanical arm grabbing is replaced, taking and placing are more stable, falling accidents are not likely to happen, efficiency is high, compatibility is high, and control and maintenance are more convenient.

The invention discloses an automatic wheel changing device. The automatic wheel changing device comprises a machine frame, two steering brackets arranged on the machine frame and an air cylinder driving the machine frame to rotate, wherein an I-shaped wheel is placed on each steering bracket; the machine frame comprises a bottom plate arranged at the bottom; a convex block is arranged at the bottom of the machine frame in an outward convex mode; one end of the air cylinder is an extension bar; the end, far away from the extension bar, of the air cylinder is hinged to the bottom plate; and theextension bar is hinged to the convex block. According to the automatic wheel changing device, the two ends of the air cylinder are correspondingly hinged to the bottom plate and a rotating sleeve, when a counterweight block is far away from a limiting switch, the air cylinder is controlled to drive the rotating sleeve to rotate, so that the automatic direction changing of the two I-shaped wheelsis realized, the operation is simple, and the efficiency is improved.

The invention belongs to the technical field of railway vehicle seat compartments, and discloses a staggered seat compartment capable of automatically reversing for a railway vehicle. The seat compartment comprises a corridor partition, a sliding door, a seat part and a base mechanism. A corridor partition sliding mechanism for realizing transverse movement of the corridor partition, a seat part sliding mechanism for realizing transverse movement of the seat part, and a seat part rotating mechanism for realizing reversing of the seat part are arranged on the base mechanism. The corridor partition sliding mechanism and the seat part sliding mechanism share a motor and a lead screw, the lead of the rear end of the lead screw is twice that of the front end of the lead screw, corridor partition displacement is twice that of the seat part displacement when the motor operates, enough space is reserved for reversing of the seat part, and economy and practicability are achieved. The corridor partition and the sliding door are arranged on the corridor side, the privacy of the seat space is improved, movement of the corridor partition and movement and rotation of the seat can be controlled by the centralized control system, automatic reversing of the seat bags is achieved, and good application prospects are achieved.