44results about How to "Realize the interlock function" patented technology

The invention discloses a power-uninterrupted hydraulic gear shifting device. A hydraulic cylinder is installed on an input shaft and is provided with two valve element cavities in which a first linkage valve element and a second linkage valve element are installed correspondingly; one side of the first linkage valve element and one side of the second linkage valve element are each of a piston structure, are sealed through linkage valve element sealing rings and are provided with linkage valve element returning springs; the other side of the first linkage valve element and the other side of the second linkage valve element are each of a conical face structure; the end face area of the conical face side of each of the first linkage valve element and the second linkage valve element is smaller than the end face area of the other end; and the first linkage valve element and the second linkage valve element are reversely installed. The power-uninterrupted hydraulic gear shifting device is used for automobile gear position switching, and in the gear shifting process, power un-interruption can be achieved; after a gear position is shifted in, oil pressure built in the hydraulic cylinder can be kept all the time; and in the gear shifting process of two gear positions, only one of the two gear positions can be shifted in, and the two gear positions are mutually locked.

The invention discloses a hydraulic control system for a folding arm-type overhead working truck. The hydraulic control system for the folding arm-type overhead working truck comprises a pump group, an upper truck control multi-way valve, a lower truck control multi-way valve and a bypass throttle valve group; the lower truck control multi-way valve comprises a two-position three-way valve, a liquid-controlled overflow valve and a supporting leg control valve; a pilot oil way of the liquid-controlled overflow valve is communicated with the upper truck control multi-way valve; the supporting leg control valve distributes hydraulic power which is provided by the pump group to different lower truck actuating components. The hydraulic control system for the folding arm-type overhead working truck has the beneficial effects that: 1, the overall system is divided into two parts, i.e., an upper truck control system and a lower truck control system through a two-position three-way reversing valve, so that the lower truck control system and the upper truck control system realize an interlocking function, when an upper truck works, a lower truck cannot work, and when the lower truck works, the upper truck cannot work either; 2, a bypass throttle valve is arranged at each of a turntable and a working platform by utilizing a bypass throttling control mode, so that a worker can control the speed of an upper truck system conveniently when the turntable and the working platform operate, and the control cost of the system is reduced.

The invention provides a transmission double-lever control device assembly. A transverse gear shifting lever is provided with a switch control block, a self-locking control block and a gear shifting block, the switch control block, the self-locking control block and the gear shifting block rotate synchronously with the transverse gear shifting lever, and a shell is provided with a self-locking assembly and a reverse gear lock assembly. A groove is formed in the self-locking control block in the circumferential direction, and when the self-locking assembly is located in the groove, neutral gearpositioning is carried out on the gear shifting block. The circumferential surface of the gear shifting block is provided with a protrusion, the gear shifting block slides horizontally, and when gearshifting forth increases and the reverse gear lock assembly reaches the top of the protrusion, a reverse gear position is selected into. According to the transmission double-lever control device assembly, self-locking and reverse gear locks are arranged on the control assembly, all the gears share the self-locking assembly, the consistency of gear shifting force is guaranteed, meanwhile the gearshifting force can be debugged without disassembling a gearbox, the number of parts is reduced, the cost is reduced, and the transmission double-lever control device assembly has high use value and promotion value.

The invention relates to an interlocking type gear shifting mechanism applied to a gear box. Output rotary speed conversion and forward and backward rotations (four gears of different forward rotary speed outputs and backward rotary speed outputs) of a drilling machine are controlled by the same pulling rod; a positioning steel ball and an interlocking steel ball commonly press and firmly lock a gear in a conversion process and an inter-gear interlocking function is realized, so that the gear shifting is safe and reliable and gears are not disordered, and the inter-gear interlocking function is simply and reliably realized in a gear shifting process; and compared with the existing gear shifting mechanism lacking of the interlocking function, the interlocking type gear shifting mechanism has the advantages of simple and compact structure, easiness in operation, and safety and reliability, and is suitable for being popularized and applied on similar gear boxes.

The invention provides a locomotive cab control console system. The locomotive cab control console system comprises a control console, a plurality of control parts arranged on the control console andcapable of independently controlling operation of a locomotive, a control switch connected with all the control parts and a control module, wherein the control module is configured to selectively start one of the plurality of the control parts for controlling the operation of the locomotive according to status of the control switch. The invention further provides a vehicle comprising the locomotive cab control console system. The locomotive cab control console system provides a plurality of selectable operating positions to drivers by arranging the plurality of the control parts on the singlecontrol console, and therefore only one driver is needed to complete driving operation, and other auxiliary personnel do not need to be equipped, and furthermore the locomotive cab control console system achieves an interlock function among the plurality of the control parts through programming of the control module, and guarantees safety and reliability of the control console system and the locomotive.

The invention relates to the field of engineering machinery, and discloses a boarding power take-off control system, a method and engineering machinery. The boarding power take-off control system comprises a boarding power take-off device, a transfer case gear shifting air cylinder and an electromagnetic valve set. The boarding power takeoff and the transfer case gear shifting air cylinder each comprise a neutral gear and a power take-off gear, and the electromagnetic valve set controls the ventilation state of the boarding power takeoff and the transfer case gear shifting air cylinder so thatthe neutral gear of one of the boarding power takeoff and the transfer case gear shifting air cylinder can be locked with the power take-off gear of the other of the boarding power takeoff and the transfer case gear shifting air cylinder. When one of the transfer case gear shifting air cylinder and the boarding power takeoff is in a neutral position state, the other one can enter a non-neutral-position working state. When the power take-off operation is carried out, the chassis transmission system cannot output power; when the chassis transmission system outputs driving power, the boarding cannot take off the power; and the problem of insufficient power caused by extra power consumption is solved.

The invention discloses an electric gear selecting and shifting executing mechanism. The mechanism comprises a gear selecting mechanism, a gear engaging mechanism, a self-locking mechanism, an interlocking mechanism, a transmission shaft and a shell; the gear selecting mechanism is arranged at one end of the shell; the gear engaging mechanism is arranged at the other end of the shell; the output end of the gear selecting mechanism is connected with a transmission body; the output end of the gear selecting mechanism is connected with the output end of the gear selecting mechanism through the transmission shaft; the self-locking mechanism is connected with the output end of the gear selecting mechanism and is used for preventing a transmission from undergoing spontaneous out-of-gear; and theinterlocking mechanism is connected with the output end of the gear selecting mechanism and is used for preventing the transmission from being engaged with multiple gears at the same time. Accordingto the electric gear selecting and shifting executing mechanism of the invention, the self-locking mechanism is adopted, so that the locking of a certain gear of the transmission is achieved, and therefore, the automatic gear jumping of the transmission caused by vibration in the running process of a vehicle is prevented; and the interlocking mechanism is adopted, so that the transmission can be prevented from being engaged with multiple gears at the same time, and therefore, damage to the transmission caused by such a condition is effectively avoided. The mechanism is simple in structure andcan assist inn decreasing the fault points of the transmission and improving the reliability of the vehicle.

The invention discloses a wave-by-wave current limiting device for a inverter. When the inverter load is increased, the output power of the whole inverter increases, which inevitably leads to an increase in the load current. In order to avoid over-current of the main power circuit component switch tube, it is necessary to set a current threshold value in each switching cycle, so that the switch tube can be turned off when the switch tube current exceeds the threshold value, the current does not continue to rise to protect the switch tube. The wave-by-wave current limiting device for inverter can collect the load output current through a current limiting comparison unit and compare with the set value, and then perform a certain adjustment on the PWM waveform outputted by a chip through a wave-by-wave current limiting unit, and then output the signal to a power tube driving unit, thereby realizing current limiting during each switching cycle. Meanwhile, when the PWM waveform outputted bythe chip is wrong, the interlocking function can also be realized to prevent the DC power supply from being short-circuited due to the simultaneous conduction of the two switch tubes of the same bridge arm.

The invention relates to a shift control mechanism of a transmission. The shift control mechanism comprises a first shift lever, a second shift lever, a third shift lever and a fourth shift lever, wherein a first shift fork and a first shift drive fork are matched on the upper portion of the first shift lever, a second shift fork and a second shift drive fork are matched on the lower portion of the second shift lever, the lower portions of the third shift lever and the fourth shift lever are matched with a third shift drive fork respectively, and a third shift fork is matched on the upper portion of the fourth shift lever. The shift control mechanism is characterized in that a shift block is composed of a shift finger and a shift cam, a mounting hole is arranged at the center of the shift cam, a shift shaft is perpendicular to the fourth shift lever and matched with the mounting hole on the shift cam, and the shift finger is positioned between inner sides of the first shift fork, the second shift fork and the third shift fork. The shift control mechanism is simple in structure, and capable of achieving shift interlocking and gear selection before dislocating, reducing shift time, and improving safety and service efficiency of the transmission.

A vacuum cabinet rear forced interlocking mechanism comprises a rear plate, an isolation cam, an isolation main shaft, a breaker cam, a breaker main shaft, a grounding cam and a grounding main shaft.The isolation cam is arranged on the isolation main shaft which is connected with an isolation switch rotating shaft; the circuit breaker cam is arranged on the circuit breaker main shaft; the circuitbreaker is connected with the circuit breaker switch rotating shaft; the grounding cam is arranged on a grounding main shaft which is connected with a grounding switch rotating shaft; a first interlocking linkage device and a second interlocking linkage device are arranged between the isolation cam and the circuit breaker cam and between the circuit breaker cam and the grounding cam, so that thecircuit breaker cannot be switched on when the isolation switch is switched off; after the isolation switch is switched on, the circuit breaker can be switched on; after the circuit breaker is switched on, the isolation switch and the grounding switch cannot be operated; and after the grounding switch is switched on, the circuit breaker cannot be switched on. The interlocking device is simple in structure, easy to operate and high in safety, the interlocking function among the isolation switch, the circuit breaker and the grounding switch can be reliably achieved, and misoperation accidents are avoided.

The invention discloses a hydraulic interlocking control system comprising an oil cylinder A and an oil cylinder B. An oil inlet is connected with the oil cylinder A through a first oil delivery pipeand is connected with the oil cylinder B through a second oil delivery pipe. An oil outlet A is connected with the oil cylinder A through a first oil return pipe. An oil outlet B is connected with theoil cylinder B through a second oil return pipe. A pressure reducing valve A, a manual valve A and a hydraulic control one-way valve C are connected and installed between the first oil delivery pipeand the first oil return pipe. The first oil delivery pipe is connected with the second oil return pipe through a logical valve C, a manual valve C and a hydraulic control one-way valve B. A pressurereducing valve B, a manual valve B and a hydraulic control one-way valve D are installed between the second oil delivery pipe and the second oil return pipe. The second oil delivery pipe is connectedwith the first oil return pipe through a logical valve D, a manual valve D and a hydraulic control one-way valve A. The first oil return pipe is connected with the second oil return pipe through a logical valve A. The second oil return pipe is connected with the first oil return pipe through a logical valve through a logical valve B. The hydraulic interlocking control system is high in safety andwide in application range.

The invention discloses an interlocking device of a modular bus type electromagnetic valve group. The modular bus type electromagnetic valve group comprises a bus coupler, an electromagnetic valve seat and a plurality of electromagnetic valves integrated on the electromagnetic valve seat. The interlocking device comprises an input interface, an output interface and a controller, wherein the input interface is connected with the bus coupler, and is used for receiving an electromagnetic valve control instruction transmitted by the bus coupler; the output interface is connected with the plurality of electromagnetic valves through the electromagnetic valve seat; and the controller is used for determining a target electromagnetic valve from the plurality of electromagnetic valves according to the electromagnetic valve control instruction, and interlocking the target electromagnetic valve. According to the interlocking device, an individual target electromagnetic valve can be interlocked according to the practical requirement, the interlock function of an assigned electromagnetic valve is achieved, and different technological requirements can be met. The invention further discloses the modular bus type electromagnetic valve group.

The invention relates to an automobile speed change control mechanism. The automobile speed change control mechanism comprises an operation base and a control rod, wherein a gear limiting disc is arranged inside the operation base; a reverse gear groove and a plurality of forward gear grooves are formed in the gear limiting disc, the forward gear grooves communicates with one another through a horizontally-arranged forward guide groove, and a horizontally-arranged reverse gear guide groove is formed in the reverse gear groove; the control rod is inserted into the forward guide groove, and a guide block is arranged at the bottom of the control rod and comprises an upper guide block, a lower guide block, a telescopic rod and a compression spring; and when the compression spring is in a balanced state, the forward guide groove is matched with the guide block in a balanced state, when the compression spring is in a compressed state, the reverse gear guide groove is matched with the guide block in a compressed state, and the reverse gear guide groove is connected with the forward guide groove through a limiting groove. When the control rod is engaged into a reverse gear, the control rod needs to be compressed downwards until the telescopic rod is shortest, the guide block moves into the reverse gear groove after entering the reverse gear guide groove, and the control rod is prevented from being engaged into the reverse gear groove due to misoperation when located in the forward guide groove.

The invention belongs to a flying automatic control technology, and relates to a forward and reverse thrusting interlocking mechanism. The forward and reverse thrusting interlocking mechanism is usedin an accelerator control console of an airborne power device system, and can also be used in other electromechanical products. The forward and reverse thrusting interlocking mechanism comprises a reverse thrusting rod (1), a forward thrusting rod (2), a middle baffle (3) and a pin shaft (5). The forward and reverse thrusting interlocking mechanism integrates the forward thrusting rod and the reverse thrusting rod, the structure is compact, and relatively independent movement is realized while the interlocking function is achieved, without occupying excessive space; the middle baffle is designed, so that the function of physical isolation from other channels is realized while the forward and reverse thrusting interlocking function is achieved, and the weight reduction design of the productis realized under a certain condition; and the forward and reverse thrusting interlocking function is realized through mechanical parts, the structure is simple and reliable, and the safety is high.

The invention discloses a multiple-door interlocking device comprising a control device, a plurality of door frames arranged in the same space and door plates in one-to-one correspondence with the door frames. One sides of the door plates are hinged to the door frames, the other sides of the door plates are connected with the door frames through locking mechanisms, and the control device is electrically connected with the locking mechanisms of the multiple door frames so as to control the locking mechanisms to conduct synchronous locking or synchronous opening. According to the multiple-door interlocking device, the locking mechanisms are arranged between the door plates and the door frames, and the control device is arranged to control the locking mechanisms to synchronously lock or synchronously open the door plates, so that the multiple-door interlocking function is achieved. The multiple-door interlocking device is simple in structure, good in using effect and easy to use and popularize.

The invention discloses a circuit board with an interlocking function. The circuit board comprises a PCB main board and an encryption board integrated on the PCB main body. A signal input module, a signal output module and a switch module are arranged on the PCB main body. A panel communication transmission module, a CPLD control chip, an MAC storage chip, a CNC signal transmission module, a voltage amplifying module and a circuit assisting protection module are arranged on the encryption board. The panel communication transmission module is connected with an external operation panel. The CNC signal transmission module is connected with a CNC controller. The external operation panel judges whether an operation panel is matched with the encryption board through the panel communication transmission module after calculation through the CPLD control chip. The external CNC controller is output through a signal output module through the voltage amplifying module after calculation of the CPLD control chip through the CNC signal transmission module. According to the invention, the interlocking function between the operation panel and a machine tool signal circuit board is achieved; proper usage of the device is normalized; rights and interests of producers are ensured; and safety of the device is further improved.

The invention discloses an electrified railway catenary column crossing device, which comprises a main beam, a left beam and a right beam connected to both sides of the main beam, and the main beam is divided into an upper main beam, a lower main beam and a telescopic connecting main beam sleeve, and the bottom end of the upper main beam or the top of the lower main beam is sleeved and connected with a main beam telescopic sleeve; the left side beam includes a left upper side beam, a left lower side beam and a left telescopic sleeve, and the left upper side beam The bottom end or the top of the left lower side beam is fitted with a left telescopic sleeve, the right side beam includes a right upper side beam, a right lower side beam and a right telescopic sleeve, and the bottom end of the right upper side beam or the top of the right lower side beam The upper sleeve is connected with a right telescopic sleeve. The present invention utilizes the expansion and contraction effect of the telescopic sleeve, and when the telescopic sleeve is retracted, a gap is formed to realize the avoidance of the column, and the main beam, the left beam and the right beam form gaps in sequence to realize the avoidance, and when any beam body forms When avoiding the gap, the other two beams are in a connected load-bearing state, which does not affect the safety of the overall mechanical equipment.

The invention discloses a hydraulic system, and solves the technical problems of complicated control, low stability and low reliability of the hydraulic system of a multi-degree-of-freedom segment erector. The hydraulic system comprises a connected pump source and an execution unit. The execution unit comprises a first hydraulic motor or / and a second hydraulic motor or / and a first hydraulic cylinder or / and a second hydraulic cylinder or / and a third hydraulic cylinder or / and a fourth hydraulic cylinder. Balance valves are arranged between the first hydraulic motor and the pump source, between the second hydraulic motor and the pump source, between the first hydraulic cylinder and the pump source, between the third hydraulic cylinder and the pump source, and between the fourth hydraulic cylinder and the pump source. A hydraulic control one-way valve is arranged between the second hydraulic cylinder and the pump source. The hydraulic system can conveniently realize the control of six degrees of freedom, make the operation of each degree of freedom more stable, realize the smooth start and stop of the first hydraulic motor, avoid sudden stop and suction, and realize the interlocking function between the action of grasping the hydraulic cylinder and other executive parts.

The invention discloses an anti-falling fastening device. The anti-falling fastening device comprises a rod piece and two or more nuts; two sets of threads with opposite screwing-in directions are arranged on the periphery of the rod piece; the two nuts are mounted on the rod piece in a sleeving mode and screwed on the threads with different screwing directions correspondingly; and the side facesof the face-to-face sides of the two nuts are each provided with one or more sets of lock ribs which are mutually matched and connected in an abutting mode. The double-thread and double-nut anti-falling design is adopted, the interlocking function of the double nuts is achieved through lock rib structures on the double nuts, and the anti-falling effect is improved.

The invention relates to an interlocking type aerial work vehicle. The interlocking type aerial work vehicle is provided with a crane chassis, a cab is arranged on the front portion of the crane chassis, an engine is arranged below the cab, front wheels and a rear axle are arranged below the crane chassis, the engine is in power transmission with the rear axle through a gearbox and a transmissionshaft, a suspension hanger is installed on the crane chassis, wherein the suspension hanger is provided with a bottom supporting frame, a middle supporting frame and an upper supporting frame, the bottom supporting frame is hinged to a rotary fixing column, and the bottom supporting frame, the middle supporting frame and the upper supporting frame are driven to stretch through a bottom hydraulic supporting cylinder, a middle hydraulic supporting cylinder and an upper hydraulic supporting cylinder correspondingly. According to the interlocking type aerial work vehicle, the interlocking functionduring working of the aerial work vehicle can be realized, so that the labor cost is greatly reduced, and the safety of operators is improved.

The invention discloses a variable pitch system blade interlocking circuit. In daily maintenance, the three paddles are likely to be located at the 0-degree position at the same time, and if the angles of the paddles are adjusted to the 0-degree position at the same time, the wind turbine generator loses the pneumatic braking capacity. The system comprises three relays, a change-over switch (4) and three variable-pitch motors, the change-over switch is provided with three output ends, each output end corresponds to one relay and one variable-pitch motor, each output end outputs two branches, one branch is connected with a corresponding relay coil, and the other branch is connected with a corresponding variable-pitch motor coil. And the other relay is connected with the normally closed contacts of the other two relays in series and then is connected with the corresponding variable pitch motor. The blade interlocking device is used for interlocking the blades of the variable-pitch system.

A gear shifting interlocking device of an automobile manual transmission comprises shift fork shafts, shift fork shaft locking blocks, a steel ball limiting lock, a steel ball limiting lock fixing plate and shift fork shaft positioning plates. The number of the shift fork shafts is matched with the number of gears of the transmission. All the shift fork shafts are in a parallel arrangement state, the reciprocation trails of the shift fork shafts are limited through the shift fork shaft positioning plates, and each shift fork shaft is provided with one shift fork shaft locking block. The shift fork shaft locking blocks and the steel ball limiting lock are assembled in a matched mode. The steel ball limiting lock and the shift fork shaft positioning plates are assembled through the steel ball limiting lock fixing plate. The shift fork shaft positioning plates are fixed to a transmission shell. The gear shifting interlocking device has the advantages of being simple in structure and convenient to assemble, the interlocking function between different gears in the gear shifting process is guaranteed, besides, the assembling difficulty of the components is lowered, working efficiency is improved, and the production cost is reduced.

The invention discloses a terminal-card interlocking method and a terminal-card interlocking device. The terminal-card interlocking method comprises steps that a terminal is used to acquire a first code transmitted by an SIM card; the terminal is used for encryption calculation of the first code and a second code to acquire an encryption result, and the second code comprises an integrated circuit card identification code; the terminal is used to transmit the encryption result to the SIM card, and then whether the SIM card and the terminal are interlocked with each other is determined by the SIM card. Normal communication is realized in a scene of matching the SIM card and the terminal, and therefore the function of interlocking the SIM card and the terminal is realized.