86results about How to "Avoid taxiing" patented technology

The invention discloses an electronic parking braking method. The method comprises the following steps of: first, parking braking, namely transferring prestored air pressure in an air reservoir to brake chambers of each wheel by controlling an active air supply electromagnetic valve to realize the parking braking; and second, releasing braking, namely when a road section is a straight road surface, simultaneously releasing a drive wheel and a driven wheel of a controlled vehicle once; and when the road section is a downhill road section or an uphill road section, adopting a corresponding control strategy according to the rotating situations of each wheel of the vehicle, and releasing the air pressure in the brake chambers of each wheel of the controlled vehicle separately by utilizing a pressure maintaining effect of an antilock brake system (ABS) electromagnetic regulating valve. The electronic parking braking method has a reasonable design, low investment cost, high intelligence degree and good use effect, is convenient to operate, and solves the practical problems of high technical requirements on drivers, brake force transfer gap of mechanical system, great difficulties in starting operation on low-adhesion coefficient road surface and ramp, poor use effect and the like in a conventional mechanical parking braking system.

The invention discloses an aiding hill starting method based on an anti-lock braking system (ABS) and an aiding hill starting system using the method. The method comprises a step of judging the launching of aiding hill starting, wherein the situation that a vehicle can be in an aiding hill starting launching state is confirmed, a step of aiding hill braking, wherein a pressure maintaining process is carried out on a brake air chamber, and a step of aiding the hill starting, wherein an ABS pressure reducing signal is sent to reduce the pressure in the brake air chamber to zero, and a clutch is completely combined. The system can judge that the vehicle is located in the flat ground or the slope by obtaining vehicle velocity, acceleration, tap position or foot braking information, the aiding hill starting system is automatically started to control the hill starting according to a judgment result, a driver does not need to manually operate, unnecessary backward sliding times can be reduced, and unnecessary accidents are avoided.

The invention discloses a manual-automatic integrated adjustable chair blocking device of a descending flying cart by a mine ropeway, comprising a lifting frame; a fixed shaft is arranged on a movable plate which is arranged on the lifting frame by a U-shaped bolt; the fixed shaft is provided with a shaft sleeve which is fixed by a nut; the lower side of the shaft sleeve is provided with a baffle; the upper side of the shaft sleeve is provided with a shifting block; a traction electromagnet is arranged on the lifting frame; a pull rod of the traction electromagnet is connected with the shifting block; the electromagnet can be controlled by an over-speed safety protection circuit; a manual switch of the over-speed safety protection circuit is controlled by a pull rope; and a speed sensor is arranged at a supporting wheel side. The manual-automatic integrated adjustable chair blocking device has the beneficial effects that since the baffle is controlled by the electromagnet, when the mine ropeway operates normally, the electromagnet pulls up the baffle, so that the passing of a movable rope clip; when the mine ropeway generates power failures in operating process, and in cart flying, a lifting chair in the descending direction slides downwards and fast under the gravity function; and when the speed is detected to overpass the safety value by the speed sensor, the electromagnet pulls the baffle, the baffle moves downwards and is clamped on a steel wire rope, so that the movable rope clip can be prevented from sliding downwards, and the occurrence of casualty accidents of personnel sitting on the lifting chair can be avoided.

The invention relates to a bumper of a track crane, which belongs to the improvement of the bumper structure of the track crane. The bumper of the track crane has simple structure, universal usage under dynamic condition and reliable braking ability. The bumper comprises a supporting frame and is structurally characterized in that the front part of the supporting frame is a baffle, the bottom of which is made of two clamp plates capable of fixing steel rails and the two clamps are fixed by bolts; a cambered surface in the front of the baffle is consistent with a cambered surface of an approachslabs capable of combining with the top surfaces of the steel rails.

The invention discloses an omni-directional precise transfer crane, and relates to the technical field of hoisting machinery equipment. The omni-directional precise transfer crane comprises a machinebody, wherein the machine body comprises a frame, a lifting mechanism and a travelling mechanism, and a sliding mechanism is arranged on the frame; the sliding mechanism comprises a guide rail, a sliding block is arranged on the guide rail in a sliding mode, a transmission screw is arranged on the guide rail, penetrates through the sliding block and is in threaded connection with the sliding block, and a first driving device is arranged at one end of the guide rail; the lifting mechanism comprises a winding drum, an upper pulley block, a lower pulley block, ropes, a lifting appliance platformand a lifting appliance; the upper pulley block is arranged on the sliding block, the lower pulley block is arranged on the lifting appliance platform, upper pulleys are connected with the lower pulley block through the ropes in a winding mode, the winding drum is rotationally arranged on the sliding block, and a second driving device is arranged on the sliding block; and the travelling mechanismcomprises steering wheels. The omni-directional precise transfer crane is simple and reliable in structure, good in safety, small in space occupation, flexible in movement, capable of preventing swingand high in precision.

A pine oil bucket transportation vehicle with a loading/unloading device comprises a frame, and a wheel shaft and wheels which are fixed on the frame, wherein the frame is provided with a vertical bracket; the vertical bracket is provided with a pine oil bucket loading/unloading device; the pine oil bucket loading/unloading device is provided with a hinging seat; the hinging seat is fixed on the vertical bracket; a hanging rod is fixed on the vertical bracket by the hinging seat; a manipulation end of the hanging rod is arranged on one side of a push rod; the other end of the hanging rod is arranged on one side of a vehicle body. According to the pine oil bucket transportation vehicle, the pine oil bucket hanging rod is additionally arranged on the frame; after a pine oil bucket is hung by the hanging rod, the pine oil bucket can be transported in a short distance by the transportation vehicle and then is unloaded after reaching an appointed position. The transportation vehicle has a simple structure and low cost, is convenient to use and maintain and is particularly suitable for small-scale and small-distance flexible transportation; the labor intensity of workers is alleviated and the labor efficiency is improved.

The invention belongs to the field of baby products, in particular to a baby walker which comprises a walker body, limiting devices, brackets I, a seat, brackets II and a strap. The limiting devices are installed at the rear wheel positions of the walker body, and the brackets I are fixed to the top surface of the walker body. The seat is disposed between the two brackets I, and the brackets II are disposed on the two sides of the seat correspondingly and above the brackets I. The strap is disposed at the upper ends between the two brackets II. According to the baby walker, a baby is preventedfrom sliding in the baby walker through the limiting devices, the baby is restricted to learn to walk step by step, accidents are prevented from occurring during sliding of the baby walker, meanwhilethe chest of the baby is bound, and the body of the baby is supported, so that the situation that bandy legs are formed due to the fact that two legs of the baby are separated by force during walkingis prevented.

The invention discloses lead frame plate placing and pushing-out equipment for semiconductor cutting. The lead frame plate placing and pushing-out equipment comprises a base, a top frame and a secondmotor. An arc-shaped hole is formed in the rear side of the base, a detection hole is formed in the rear side of the base, the detection hole is located in the right of the lower end of the arc-shapedhole, a sensor is fixed to the rear side of the base, the sensor and the detection hole are arranged in a front-back corresponding mode, and two transmission rollers are rotationally arranged in thebase and are in transmission connection through a belt. A first motor is fixed to the front side of the base, the output end of the first motor penetrates through the front side of the base to be fixed to the front end of one of the transmission rollers, and an electric push rod is fixed to the rear side of the base. According to the lead frame plate placing and pushing-out equipment for semiconductor cutting, the lead frame plates can be placed into the equipment without stop, then the lead frame plates are turned over to be placed and pushed into the cutting device, manual taking and placingare avoided, and the cutting efficiency is improved.

The invention discloses equipment for producing a connecting wire with a terminal, and the equipment comprises a rack; the rack is provided with a suction seat, a feeding mechanism, a migration seat,a traction seat, a terminal installation mechanism, a positioning seat, a loading support and a feeding track; the rack is provided with an annular cutting channel, a cut-off channel and a stripping channel, and the suction seat is provided with a suction pipe. A bundling part is arranged on the suction base, a traction clamp is arranged on the traction base, a conveying sliding rail is arranged on the machine frame, a conveying base is arranged on the conveying sliding rail, a conveying clamp is arranged on the conveying base, a transferring clamp is arranged on the machine frame, a positioning clamp is arranged on the positioning base, and the feeding rail is obliquely arranged. A loading clamp is arranged on the loading support, a loading mechanism is arranged between the loading support and the feeding rail, and a transferring mechanism is arranged on the transferring base. The structure is simple and reasonable, and terminal installation and combined storage can be carried out while the peeling and bundling operation is carried out on the two ends of a wire rod.

A rapid brake system for a truck in winters comprises an ice layer thickness detecting instrument, a control module and an anti-sliding device, wherein the ice layer thickness detecting instrument isused for detecting the thickness of an ice layer of a road surface; the ice layer thickness detecting instrument transmits examination information to the control module; and the control module acts tocontrol operation of the anti-sliding device. The overall rapid brake system is mounted in a box, the whole box is mounted on the bottom of the truck, the rapid brake system can be mounted for a longtime and is also suitable for an environment where rapid braking cannot be implemented due to an environment which does not have ice or snow, therefore, the rapid brake system does not need to be disassembled frequency after being used, and the danger caused by the reason that an anti-sliding chain is not mounted in time when a user suddenly encounters an environment with ice and snow is avoided.In addition, the rapid brake system is convenient to mount, and can be rapidly assembled and disassembled through mounting bolts.

The invention discloses a bottom trolley structure of a large-sized gantry crane. The bottom trolley structure of the large-sized gantry crane comprises a ground beam and trolley cross beams, wherein gantry crane supporting legs are welded above the side surface of the ground beam; a second trolley device is connected below the left side surface of an anchoring device through a ground beam fixing device; the ground beam fixing devices are connected to the upper middle parts of the trolley cross beams through ground beam lower flanges; rail clamping devices are arranged at the front ends of trolley frames below the right sides of the trolley cross beams; driving motors are fixedly arranged on trolleys below the left sides of the trolley cross beams; driving wheel sets are mounted below the driving motors; wheels are arranged on the driving wheel sets. The bottom trolley structure of the large-sized gantry crane adopts eight trolleys, so that the stability performance of the gantry crane is effectively improved, and stress conditions during working of the trolleys are reduced; meanwhile, the rail clamping devices are arranged at the front ends of the passive trolleys, so that the stable effect is good and the safety performance is high; the adopted anchoring device enhances the strength of the ground beam and prolongs the service life.

The invention discloses a method and device for closed-loop regulation and control of brake pressure of a train. Closed-loop control on the brake pressure of the train is directly carried out through a driver brake controller by a digital command, a mechanical structure is simple, maintenance and repair costs are low, the consumption amount of compressed air is small (due to energy conservation of the train), idling braking time in a brake process is quite short, the brake speed is high, graduated release can be realized, excessive supply cannot be generated, brake pressure can be accurately controlled in real time in a brake process of the train, gliding of wheels can be prevented, safety and reliability can be improved further, and production costs generated by gliding scratching of wheels and steel tracks are greatly reduced. The bottleneck problem of brake for speed increasing of the train is solved. The method and device for closed-loop regulation and control of brake pressure of the train have the advantages that the method is advanced, safe and reliable, and a control mode of carrying out open-loop control on brake pressure of the train in an automatic air numerically controlled brake which uses a train tube pressure control-brake valve to work in recent hundreds of years is changed.

The invention discloses a manual-automatic integrated fixed baffle chair device of a descending runaway of a mine ropeway, comprising a suspension bracket. A fixed shaft is mounted on the suspension bracket and provided with a shaft sleeve which is fixed by nuts, a baffle is mounted at the lower side of the shaft sleeve, a poker block is mounted at the upper side of the shaft sleeve, a traction electromagnet is mounted on the suspension bracket, the traction electromagnet pull rod is connected with the poker block, the electromagnet can be controlled through an overrunning safe protective circuit, a manual switch of the overrunning safe protective circuit is controlled through a stay cord, and a speed sensor is arranged at the riding wheel side. The invention has the advantages that because the baffle is controlled by the electromagnet, the baffle is pulled up by the electromagnet without preventing a movable rope clip from passing when the mine ropeway runs normally; and when the power failure occurs in the operation process of the mine ropeway to cause runaway, and a suspension chair in the descending direction rapidly slide downwards under the action of gravity, the baffle is pulled up by the electromagnet and moves downwards to be clamped on a wire cable when the speed detected by the speed sensor exceeds a safety value so as to prevent the movable rope clip from sliding downwards and avoid the casualty accidents of persons sitting on the suspension chair.

The invention discloses an automatic parking baby stroller. The automatic parking baby stroller comprises a movable stroller frame, a supporting frame arranged above the movable stroller frame and fixed to the movable stroller frame, a baby seat arranged above the supporting frame and fixed to the supporting frame, and a push rod arranged on one side of the supporting frame and fixed to the supporting frame. The supporting frame comprises a supporting frame body and hinging seats arranged on the two sides of the supporting frame body and fixed to the supporting frame body, the supporting framebody is in a U shape, connecting blocks fixed to the baby seat are arranged at the upper end of the supporting frame body, and a threaded hole is formed in the middle portion of the supporting framebody. The movable stroller frame controls movement of front wheels and rear wheels, the baby stroller can automatically park, the situation that the baby stroller slides due to the fact that the frontwheels and the rear wheels are loosened is avoided, and the baby stroller has the beneficial effects of being safe, reliable, convenient to use and capable of parking automatically.

The invention relates to the technical field of slip-form construction, in particular to an outer protective structure for high-rise slip-form construction. The structure comprises a pouring hopper, amaterial sliding seat is arranged on a bottom plate of the pouring hopper, a discharging port is formed in the bottom plate of the pouring hopper, an extension frame is arranged on the outer wall ofthe pouring hopper, a mounting groove is formed in the surface of the extension frame, a bearing is installed inside the mounting groove, an inner ring of the bearing sleeves the end part of a screw,the other end of the screw is connected with a power output end of a drive motor in a transmission mode, and the drive motor is installed in a machine groove. The structure has the beneficial effectsthat according to the outer protective structure for high-rise slip-form construction, the extension frame and a machine frame are arranged on the pouring hopper, a screw drive structure is arranged between the extension frame and the machine frame additionally, the screw drive structure drives protective plates to move horizontally, the adjustment of the distance between two sets of protective plates is achieved, the protection of the two sets of protective plates on pouring bodies of different widths is achieved, and the application scope of a slip-form support plate is enhanced.